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✈️NFPA 409 + OSHA 1910.106 + FAA Part 139

Aerospace Facility Evacuation Map — Aviation, Hangars & MRO

Hangars, MRO bays, paint hangars, avionics labs, composite layup rooms, engine test cells, and FAA Part 139 terminal/FBO operations. Our AI reads your as-built and produces a map that respects jet-A fuel zones, FOD-controlled areas, ITAR access restrictions, NFPA 409 deluge zones, and upwind assembly points. Free to start; supervisor sign-off required before posting.

NFPA 409Group I–IV hangars
80-B:CHangar extinguishers
75 ftCoverage from aircraft
UpwindAssembly point snap

No credit card. AS9100 documentation-ready output.

3 Simple Steps:
1Upload Floor Plan
2Select State & Industry
3Get Your Map

Eight Aviation Hazards Your Map Must Address

Each one maps to a specific OSHA, NFPA, or FAA citation an inspector can write.

Jet-A & Avgas Handling

OSHA 1910.106 + NFPA 407. Fuel-transfer zones need bonding/grounding, 50-ft clearance, and Class B coverage. Map should route evacuation away, not through, fuel-handling rectangles.

🌊

AFFF / Foam-Water Deluge

NFPA 409 Group I/II discharge fills the hangar in minutes. Map must show the deluge alarm/shutoff and the route that gets people clear before foam crests the 18"–24" depth.

🎨

Paint Hangar / Coating Bay

Chromate primers, isocyanate topcoats, and aerosol-vapor zones (NFPA 33). Single-egress paint booths need a buddy-system rule on the map and a respirator station marker.

🛰️

Avionics Test & Anechoic Chambers

1910.146 confined spaces. Single-door, RF-shielded. Map should mark each chamber with a permit-required-confined-space symbol and a posted entry log location.

🔌

High-Voltage Bench Test

NFPA 70E arc-flash boundaries. Avionics test stands sometimes run 270 VDC or 400 Hz 3-phase — map should mark de-energize/LOTO stations within 25 ft of each bench.

🧊

Composite Materials

Carbon-fiber prepreg freezer + autoclave + acetone wipe-down. Map needs the autoclave blast-clear zone and a route that does not require opening the prepreg freezer.

🔧

Engine Test Cell

Fuel + ignition + 110 dB+ noise. Confined space with fuel-cutoff and exhaust-flood emergency stops. Operator control room is the safe haven for short upsets.

🛡️

ITAR / EAR Restricted Areas

Life safety beats security. Map can show outline + exits without revealing program content. Assembly point must be in unrestricted space — never in a controlled bay.

Generate Your Aviation Evacuation Map

Upload a hangar plan, MRO bay layout, or avionics lab — get a posted-ready PDF in three minutes.

📊 5 Free Maps Left

Create Your Evacuation Map

✏️
High ContrastUse dark ink on white paper. Bold lines help our AI detect walls accurately
📐
Top-Down AnglePhotograph from directly above — tilted angles distort the geometry
🏷️
Label RoomsWrite "Exit", "Storage", "Breakroom" etc. — our AI reads your labels for compliance
🔍
Full Floor PlanCapture the entire layout including all walls, doors, and exits — no cropping
🚪
Mark ExitsCircle or label exit doors with a red dot or "EXIT" text for best detection
💡
Good LightingAvoid shadows and glare — even lighting produces the sharpest results
📁

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Compliance Options

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Add special requests for your safety map - tell our AI exactly what you need!

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Frequently Asked Questions

Is this evacuation map generator really free?

Yes — you can generate your first OSHA-aligned evacuation map draft completely free. Just upload a floor plan and our AI drafts a professional map in about 30 seconds. No credit card required.

Are the generated maps aligned with OSHA?

Our AI drafts maps that follow OSHA 29 CFR 1910.36–37 and NFPA 101 Life Safety Code standards. Every map includes clearly marked exits, fire extinguisher locations, assembly points, and directional evacuation arrows. Supervisor review is required before posting to your facility.

What file formats can I upload?

We accept JPG, PNG, and PDF floor plans. For best results, use a clear, high-resolution image of your floor plan with visible walls, doors, and rooms.

How long does map generation take?

Most maps are generated in 20–40 seconds. Complex multi-floor plans may take slightly longer. You can download your map immediately after generation.

Can I edit the map after generation?

The generated map is a high-resolution image you can download and print. For custom edits or enterprise features like multi-floor support and branded maps, check our pricing plans.

Is my floor plan data secure?

Yes. All uploads are encrypted in transit (TLS 1.3) and processed in secure cloud environments. We do not share your floor plans with third parties.

✓ Aircraft footprint routing✓ NFPA 409 deluge zone notation✓ Upwind assembly point✓ FOD-vestibule exit marking✓ AS9100-friendly export

Aviation & Aerospace Regulations Cheat Sheet

One line per standard. Print this and tape it to your safety binder.

OSHA 29 CFR 1910

  • §
    1910.38 — Written EAP including aircraft-position evac procedures.
  • §
    1910.106 — Flammable liquids (jet-A, avgas, solvents) storage and handling.
  • §
    1910.146 — Permit-required confined spaces (fuel tanks, anechoic chambers, autoclaves).
  • §
    1910.147 — LOTO for aircraft systems and ground support equipment.
  • §
    1910.157 — Portable extinguishers — Class B within 50 ft of fuel transfer.
  • §
    1910.252 — Welding, cutting, brazing in fabrication and MRO.
  • §
    1910.95 — Hearing conservation on engine test stands & ground run-ups.
  • §
    1910 Subpart Z — Hex chrome, cadmium, isocyanate exposure limits.

NFPA, FAA, ANSI & AS9100

  • 🏗️
    NFPA 409 — Standard on Aircraft Hangars — Group I–IV classifications.
  • NFPA 407 — Aircraft fuel servicing standards.
  • 🎨
    NFPA 33 — Spray application using flammable or combustible materials.
  • 🧯
    NFPA 10 — Portable extinguisher distribution.
  • 🛫
    FAA Part 139 — Airport Certification Manual & Airport Emergency Plan.
  • 📋
    FAA AC 150/5200-31C — Airport Emergency Plan guidance.
  • 💧
    ANSI Z358.1 — Eyewash and shower for chemical exposure.
  • 🏆
    AS9100D §8.5.6 — Documented safety/quality control of process changes.

What Our Generator Places Automatically for Aerospace

Class B Cluster at Fuel Zones

Extra Class B extinguishers grouped within 50 ft of any room tagged as fuel transfer or storage.

🔒

LOTO Near Test Benches

Premium-tier dashed LOTO badges at electrical, mechanical, and test-cell rooms (cap 8).

👁️

Eyewash + Drench Shower

Auto-placed at coating, chemical, and lab rooms with the 55 ft service expectation noted.

🛢️

Spill Kits at Fuel + Solvent Zones

Universal/HazMat spill kits at chemical, storage, mechanical, and warehouse rooms (cap 6).

📍

YAH + Routes Around Aircraft

Single YOU ARE HERE anchor with one route per exit, drawn to clear large-aircraft footprints.

🌬️

Upwind Outdoor Assembly

Snapped outside the building footprint along the perimeter normal away from likely vapor sources.

Five Hangar Inspector Findings to Avoid

Wheeled extinguishers parked anywhere

NFPA 10 requires a designated parking spot, marked on the map. Single most common 4-A:20-B:C finding.

Assembly point downwind of fuel

Snap it upwind. Our perimeter snap handles this when the wind-vector hint is set.

Anechoic chamber not flagged as confined space

1910.146 inspection trigger. Mark on map, post permit log at the door.

Deluge zone not on posted map

NFPA 409 Group I/II hangars need the foam-zone outline and discharge alarm shown.

FOD vestibule listed as a corridor

Make it the marked exit point so post-evac FOD sweeps know where to start.

If This Sounds Like Your Operation…

FBO with Two Group III Hangars

Each hangar gets its own map with door numbering, 75-ft 80-B:C coverage rings, and a shared assembly point in the upwind ramp area aligned with the AEP.

Aerospace OEM Final Assembly

10 aircraft positions, ITAR-restricted bays, AS9100D quality scope. Generate one master map + one zone map per position; LOTO + eyewash auto-placed for chemical lines.

Avionics Test Lab

ESD-controlled clean room + anechoic chambers + 270 VDC benches. Map flags confined spaces, marks LOTO near each bench, and routes egress through the ESD vestibule.

Talk to a Compliance Specialist

For OEM final assembly, multi-hangar campuses, or FAA Part 139 airport rollouts — book a walk-through with our team.

Aviation & Aerospace Evacuation Map FAQ

What makes an aviation or aerospace facility evacuation map different from a generic industrial map?

Hangars, MRO bays, paint hangars, and avionics labs combine jet-A fuel exposure, compressed-gas cylinders, high-bay overhead crane envelopes, ESD-controlled clean rooms, and frequently ITAR/EAR access restrictions. The evacuation map has to route people away from fuel-transfer zones, around large-aircraft footprints (a 737 occupies roughly 124 ft x 117 ft of floor), out from under crane envelopes, and to an assembly point that is upwind of any likely fuel-vapor release. Generic maps ignore all of this.

Which OSHA standards apply specifically to aerospace facilities?

29 CFR 1910.38 (EAP), 1910.37/.36 (exit routes), 1910.106 (flammable liquids — including jet fuel handling), 1910.146 (permit-required confined spaces — fuel tanks, anechoic chambers, avionics test cells), 1910.147 (LOTO), 1910.157 (extinguishers), 1910.252 (welding, cutting, brazing in fabrication), 1910.95 (hearing conservation on engine test stands), and 29 CFR 1910 Subpart Z for chemical exposures (chromates, hexavalent chromium, isocyanates in coatings). FAA Part 139 applies at certified airports, NFPA 409 governs aircraft hangars, and AS9100 quality-system audits expect documented safety plans.

What is NFPA 409 and why does it matter for a hangar evacuation map?

NFPA 409 (Standard on Aircraft Hangars) classifies hangars Group I through Group IV based on size and aircraft type. Group I (largest — door height > 28 ft or fueled aircraft larger than a 737) requires foam-water deluge or AFFF systems, which create immediate evacuation conditions when they discharge. Your map must show the deluge discharge zone, the foam-water proportioner room, the alarm and shutoff stations, and routes that clear personnel before foam fills the hangar to the documented depth. Smaller Group III hangars still need standpipe coverage and Class III extinguishers within 75 ft.

How do FOD (Foreign Object Debris) zones change evacuation routing?

FOD-controlled areas — final assembly, engine test, paint bay — restrict what can be carried in or out. During evacuation, people still need to leave, but the map should show the FOD-control vestibule as the exit point so post-evac sweep teams know where to start the FOD check. Maps should also avoid routing evacuation traffic through clean rooms or coating bays where return entry triggers a full cleaning cycle.

What about ITAR or EAR access-restricted areas — can the evacuation map show them?

Yes. ITAR and EAR govern technical data, not life safety. OSHA 1910.38(c) gives EAP and evacuation precedence: no security control can block egress. Your map can show the room outline and exits without revealing what is inside. The assembly point cannot be inside an access-restricted area (employees and visitors mixing creates a control conflict) — pick an unrestricted outdoor area instead.

How do I handle engine test cells and anechoic chambers?

Engine test cells are typically permit-required confined spaces (1910.146) with their own emergency stop, fuel cutoff, and exhaust-flood procedures. The evacuation map should mark the cell entry/exit points and the operator control room as a safe haven for short-duration upset events. Anechoic chambers are also confined spaces — single door, sound-absorbent foam interior — and must be cleared and locked open during occupancy.

What about FAA Part 139 airports — terminal vs airside vs hangar?

FAA Part 139 requires an Airport Certification Manual (ACM) with an Airport Emergency Plan (AEP) per AC 150/5200-31C. Hangar and FBO evacuation maps must align with the AEP's assembly points so that responders, NTSB, and TSA know where employees will gather. Terminal evacuation routes are governed by NFPA 101 Assembly occupancy plus TSA security screening flow during evacuation.

Do composite manufacturing bays (carbon-fiber layup, autoclave curing) need special markings?

Yes. Uncured prepreg and acetone wipe-down create flammable-vapor zones (1910.106 + NFPA 30). Autoclaves are pressure vessels and confined spaces. Map should mark the autoclave with its blast-clear zone, the curing room ventilation status indicator, and a route that avoids the prepreg freezer (which contains thousands of dollars of material that gets damaged if doors are opened during evacuation chaos).

How many extinguishers and what types for a Group I hangar?

NFPA 409 with NFPA 10: hangars require 80-B:C extinguishers within 75 ft of any aircraft, plus 4-A:20-B:C wheeled units on the hangar floor, plus standpipe hose stations. Map should show 75 ft coverage circles and mark every wheeled unit's parking spot — wheeled units that get moved and not returned are the #1 inspection finding.

What about MRO (Maintenance, Repair, Overhaul) shops with multiple aircraft simultaneously?

Map each aircraft position separately. Each position has its own LOTO state (engines on stands, hydraulics depressurized, flight controls disabled), its own fuel-transfer status, and its own evacuation route. Generate one master map showing all positions and one zone-specific map per position so the technician working under wing 3 knows the closest exit and the safest path that avoids open fuel panels on wing 1.

Aviation & Aerospace Evacuation Map: The Full Implementation Playbook

From a single-hangar Part 145 repair station to a 200-acre OEM final-assembly campus, the same compliance bar applies — but the execution differs by airframe type, fuel storage strategy, and the security overlay that comes with ITAR-controlled work.

01

Treat each hangar bay as its own egress unit

NFPA 409 Group I/II/III/IV hangars have different sprinkler, foam-suppression, and egress capacity requirements. A Group I hangar (≥40,000 sq ft single fire area) needs egress proven for the entire shift population plus visitors. Map per bay, then a campus master map at security.

02

Mark the fuel storage and de-fueling envelopes

NFPA 407 §5 governs above-ground fuel storage. Map the 50 ft separation envelope around any aviation-fuel transfer point. Egress paths must not cross this envelope without a fire-rated barrier.

03

Address FOD (Foreign Object Debris) control zones

FOD discipline says nothing leaves your pocket on the ramp. Maps note FOD-control zones so post-evacuation re-entry sweeps know what to inspect. This is a quality-system overlay (AS9100) on top of the safety map.

04

Coordinate with ARFF (Aircraft Rescue & Firefighting)

If on an FAA Part 139 certificated airport, the on-airport ARFF unit is your first responder. Map shows the agreed-upon rendezvous point and the route ARFF will take through the gate to your facility.

05

Plan for in-progress aircraft work

An airframe with panels off and harnesses hanging is harder to evacuate around than the same airframe sitting buttoned up. Add a ”work-in-progress” overlay layer for any bay with open inspections, paint operations, or fuel-tank entry.

06

Account for high-bay personnel

Stand work platforms, scissor lifts, mechanic ladders on top of fuselages — these put people 12-30 ft above the floor. Map annotates safe-descent routes and tracks how many minutes it takes to come off a ladder safely.

07

Handle classified / ITAR areas separately

If you have ITAR-controlled work areas, you cannot photograph them. Map the floor plan abstractly — exits and egress paths, no equipment detail. Treat the map itself as ITAR-controlled if it shows a restricted floor layout.

08

Drill with the airport, not just your team

Annual joint drills with ARFF, fire department, mutual aid. Map is the briefing document. Track lessons-learned and re-issue the map per cycle.

Standards Deep-Dive: Aviation / Aerospace

NFPA 409
Standard on Aircraft Hangars. Defines Group I (largest, foam required), Group II, Group III (small), Group IV (membrane). Drives sprinkler density, foam systems, egress capacity.
NFPA 407
Standard for Aircraft Fuel Servicing. Governs fuel storage tanks, fuel trucks, separation distances, bonding/grounding. Maps note transfer points and bonding-cable storage.
NFPA 410
Standard on Aircraft Maintenance. Spray paint operations, parts cleaning, electrical safety, hot work. Maps overlay paint booth and parts-cleaning enclosures with explosive-atmosphere ratings.
14 CFR Part 139.319
Aircraft Rescue and Firefighting (Operational Requirements). For Part 139 airports — defines ARFF index, response times, equipment. Tenants must coordinate with airport ARFF plan.
14 CFR Part 145
Repair Stations. FAA certificate type. Each station has a Repair Station Manual which references the EAP. Map referenced in the manual.
29 CFR 1910.106
Flammable liquids. Aviation fuel falls under this rule for ground storage. Maps mark Class I flammable storage rooms and limits.
29 CFR 1910.36 – 38
Means of egress + EAP. Same baseline as any industrial site. Hangars have very long travel distances; mid-bay exits are usually required.
AS9100
Aerospace quality management system. Not strictly a safety rule, but the QMS audit covers EAP review. Don’t fail your AS9100 surveillance audit because your map is out of date.
FAR 91.103
Preflight action (pilots). Indirectly — pilots ferrying aircraft to your hangar need to know the ramp layout. Map at the gate helps.
DoD 5220.22-M (NISPOM)
National Industrial Security Program. If cleared work — egress for classified areas must not breach controlled-access zones. Plan double-controlled exits.

Hangar Egress Capacity Worked Example

A 60,000 sq ft Group I hangar with 80 mechanics on first shift + 35 ground support personnel + 12 quality inspectors = 127 occupants peak. NFPA 101 + IBC give us 0.2 in/occupant for level travel and 0.3 in/occupant for stair. Two exits of 60” each = 120” total = 600-person capacity. Three exits on the diagonal recommended for redundancy. Maps show all three with travel-distance labels and a ”diagonal-rule” annotation.

ARFF Integration: What Your Map Must Tell First Responders

  • Gate codes or contact for after-hours access.
  • Hydrant locations on the apron and inside the hangar.
  • Foam supply (above-ground or pre-piped). NFPA 11 expansion ratio.
  • Aircraft fuel onboard quantity per stand (real-time stand status board if possible).
  • Hazardous-materials staging (composite repair epoxies, paint, solvents).
  • Compressed-gas cylinders (oxygen, nitrogen, argon) — quantity and location.
  • Battery storage (lithium-ion battery rooms — Class D extinguishers).
  • FOD-control re-entry inspection plan.

Why Aerospace Differs from General Manufacturing

Three traits make aerospace evacuation maps unique: (a) very high ceilings and large open spans, (b) high-value, fueled assets that can ignite, (c) a federal regulator (FAA) layered on top of OSHA. Maps must speak to all three audiences.

The high-ceiling aspect drives smoke-management strategy. NFPA 92 governs. Map should show the smoke compartmentation if any (rare in hangars — usually a single fire area), and call out the smoke-vent and fan locations on the roof so first responders know where the natural exhaust is.

The fueled-asset aspect drives separation distances and fire-suppression strategy. NFPA 409 high-expansion foam can cover a Group I hangar floor in 60 seconds — but only if the foam discharge isn’t blocked by parked equipment. Map keeps the discharge cone clear.

The FAA aspect drives notification and reporting. A fire that damages a part 145 repair station shop must be reported under FAR 145.221 (suspected unapproved part safety) if it affected work-in-progress on a customer aircraft. The map is part of the post-event report.

Aerospace ROI Snapshot

$2-4M

Average insured value of a single Bombardier Challenger 350 sitting in a maintenance bay. Multiply by bay count.

$120-180k

FAA civil penalty per Part 145 finding. Stacks per finding.

3-8 days

Production days lost during a forced ramp-shutdown after a safety incident. The map is the recovery doc.

$8,500

Typical CAD-vendor charge per hangar map. We replace at zero marginal cost per facility.

120 hrs

Estimated AS9100 surveillance-audit prep time saved with current maps + EAP cross-references.

2x

Insurance-carrier discount multiplier observed for fleets with documented, current evacuation maps + drills.

Glossary: Aerospace-Specific Terms

FOD
Foreign Object Debris — anything on the ramp that doesn’t belong. Catastrophic to engines. Maps note FOD-control zones for re-entry inspection after an evac.
Group I/II/III/IV Hangar
NFPA 409 sizing classification. Drives sprinkler density, foam-system, and egress capacity.
ARFF
Aircraft Rescue and Firefighting. On-airport fire/EMS unit at FAA Part 139 airports.
NISPOM
National Industrial Security Program Operating Manual (DoD 5220.22-M). Governs cleared work areas.
ITAR
International Traffic in Arms Regulations. Controls export of defense articles and tech data. Map of restricted areas may itself be ITAR-controlled.
Part 145
FAA-certificated repair station regulation. Repair Station Manual references the EAP.
Part 139
FAA-certificated airport regulation. ARFF Index A-E driven by largest aircraft regularly served.
Hot Work
Welding, cutting, brazing, grinding. NFPA 51B + 410. Permit required.
Bonding / Grounding
Electrical continuity between aircraft, fuel truck, and earth before transfer. NFPA 407.

FAQ Extension: Multi-Tenant Hangars and MROs

If you sub-lease hangar space to multiple operators, each operator needs its own EAP — but the map is shared. Annotate the map with sub-lease boundary lines, identify each operator’s primary assembly point, and have all operators sign the master plan annually.

MROs (maintenance, repair, overhaul) often have parts cleaning and paint booth operations as separate fire areas. NFPA 33 governs spray booths; map shows the booth as a discrete enclosure with its own ventilation and Class B extinguishing system.

Aerospace Inspector Casebook

Real-world findings drawn from FAA Part 145 surveillance audits, NFPA 409 fire-marshal inspections, OSHA general-industry visits, and AS9100 surveillance reviews. Use as a self-audit before your next external inspection.

FINDING 01

Hangar door open during fuel transfer

NFPA 407 §5.4 — bonding and ventilation while transferring. Map annotates bonding cable storage; transfer in posted area only.

FINDING 02

Ramp-side exit blocked by tug parking

1910.37(a)(3) — exit access free. Maps should mark ”no parking” zone in front of each man-door.

FINDING 03

Foam discharge cone blocked by parts cart

NFPA 409 + 11. The high-expansion foam system needs an unobstructed pattern. Mark the cone footprint on the map.

FINDING 04

Composite-repair shop without dedicated egress

NFPA 410 + 1910.94 — composite dust + epoxies need controlled environment + dedicated exit if > 50 occupants.

FINDING 05

Paint booth interlock bypassed

NFPA 33 — booth fans must run any time spray gun is on. Map shows booth as enclosed fire area; interlock test logged.

FINDING 06

Mechanic stranded on aircraft after alarm

1910.38(c)(2) — exit route assignments. Map identifies each work-platform descent path.

FINDING 07

FOD-control sweep skipped post-evac

AS9100 audit finding. Map’s ”FOD Zone” annotation triggers post-evac sweep procedure.

FINDING 08

ARFF gate code stale

Annual ARFF coordination required. Map shows gate location; the EAP holds the code.

FINDING 09

Oxygen storage too close to fuel storage

NFPA 55 — 20 ft separation min between Class 1 oxidizer and flammable storage.

FINDING 10

Hot work permit issued without fire watch

NFPA 51B + 1910.252. Map identifies hot-work zones, fire-watch positions, extinguisher locations.

FINDING 11

ITAR area shown on wall-posted map

NISPOM operational. Restricted areas must be abstracted or hidden on public-facing maps.

FINDING 12

Battery-storage room without explosion vent

Li-ion battery test equipment — NFPA 855 explosion-vent area sizing.

FINDING 13

Stair-evac chair missing from mezzanine

ADA + 1910.38. Mark on map.

FINDING 14

Towing-aisle exit door locked from outside

1910.37(d)(1) — exit doors openable from inside without key/tool/special knowledge.

FINDING 15

Apron-side assembly point in fuel-truck pad

Move outside fuel envelope. NFPA 407.

FINDING 16

Two stair-towers serving high-bay collapsed onto one route

1910.36(b)(1) diagonal rule. Maps show divergence.

FINDING 17

Bonding cable storage not labeled

NFPA 407 §5.5. Map marks reel locations.

FINDING 18

SDS for aerospace solvent missing from line shack

1910.1200(g). Map annotates SDS-binder location.

FINDING 19

Map shows wrong number of hangar bays after expansion

Re-generate.

FINDING 20

Cleared area marked publicly

Treat the map itself as ITAR-controlled if it shows restricted-area boundary.

Hangar Drill Script (45 minutes)

  1. T-0:00: Pre-brief with ARFF dispatcher — drill window, no aircraft movement, no actual response.
  2. T-0:05: Activate audible alarm in Bay 2.
  3. T-0:06: Mechanics on lift descend to floor (timed).
  4. T-0:08: Bay supervisor sweep — restrooms, line shack, parts cage, paint booth.
  5. T-0:10: Assembly point head count, by crew chief.
  6. T-0:15: ARFF radio-check from rendezvous point.
  7. T-0:20: Re-entry briefing + FOD sweep.
  8. T-0:30: After-action review.
  9. T-0:40: Update map / EAP as needed.
  10. T-0:45: Document drill in AS9100 records.

Aviation Training Curriculum (one hour total)

  1. Map walkthrough — bays, line shacks, paint booth, parts cage.
  2. Alarm tones and what each means (fire, foam discharge, weather).
  3. Your route from your assigned bay to the assembly point.
  4. Aircraft descent procedure if you are on a stand.
  5. Fuel-transfer safety — never evac through an active transfer.
  6. Hot-work permit + fire-watch responsibility.
  7. ARFF coordination — they come to you.
  8. FOD discipline + post-evac sweep.

FAA Part 145 Repair Station Manual Cross-Reference

Your RSM (Repair Station Manual) is the FAA-approved operations bible. Section 5 typically covers facilities, safety, and emergency procedures. The evacuation map is referenced here as the visual to the procedure text. Update the RSM revision letter when the map changes; submit the page revision to your FAA Principal Inspector.

AS9100 Surveillance Audit Notes

AS9100 clause 7.1 covers infrastructure. Auditors check the maintenance of facility infrastructure, which includes emergency systems. Maps demonstrate the visible commitment to the QMS. Tie the map revision history to the document-control register.

Compressed-Gas Cylinder Map Annotations

  • Oxygen — green cap, large diameter, separate storage. NFPA 55.
  • Nitrogen — gray cap. Asphyxiation risk in confined spaces.
  • Argon — denser than air; pools low in pits and basements.
  • Acetylene — maroon, must be upright. NFPA 51.
  • Hydraulic fluid — keep separate from oxygen.

Multi-Hangar Campus Master Map

A campus master map at the gate shows: each hangar building, fuel storage, generator yard, hydrant grid, fire-marshal staging area, and the ARFF approach. Use 24×36” minimum print at the gate. Hangar-specific maps live inside each hangar at minimum 11×17”.

Insurance Considerations

Hangar-keepers liability and ground hangar property insurance carriers increasingly require evacuation-map evidence at renewal. Many require a current map with revision date within 12 months and a documented drill within 6 months. The premium delta can be 4-8%.

25 Frequently Asked Aerospace Questions

  1. Do I need a map per hangar bay? Yes if separate fire areas.
  2. Does the map count as ITAR if it shows a controlled area? Potentially — abstract restricted areas.
  3. Can ARFF rely on my map? Coordinate annually so they have a current copy.
  4. How big should the master map be? 24×36” at gate, minimum.
  5. Hangar with no second exit — is it legal? Only if <50 occupants under most codes.
  6. Welding screen blocking exit sign? Move the screen — map sets the expectation.
  7. Foam discharge cone — what’s the keep-clear envelope? Per equipment data sheet, typically equipment radius + 3 ft.
  8. Where do mechanics on stands evac to? Floor first, then assembly point.
  9. Stair-evac chair quantity? One per stair if mezzanine is occupied.
  10. Composite-repair shop dust class? Class III combustible dust per NFPA 652.
  11. Paint booth permit interval? Per permit issuing authority (often state).
  12. Hot work permit retention? 3 years minimum.
  13. SCBA in MRO settings? Required for confined-space rescue.
  14. Sprinkler density Group I hangar? Per NFPA 13 + 409. Usually high-expansion foam in lieu.
  15. Fuel storage indoor allowed? <25 gal flammable cabinet OK; bulk outdoors.
  16. Battery-room ventilation rate? Per NFPA 855 + manufacturer.
  17. Generator-test fire risk? Annual full-load test; pre-notify safety officer.
  18. Map print medium? Laminated print + framed plexiglass at gate.
  19. Map exposure to weather? Vinyl-laminated for outdoor-facing.
  20. Map for mobile maintenance vans? Carry copy in glove box.
  21. Field-service techs at customer sites? Use customer map + sign acknowledgment.
  22. Drill frequency? Annual minimum; quarterly recommended.
  23. Drill record retention? 3-5 years.
  24. Evacuation Coordinator badge color? Bright orange or yellow vest.
  25. Map redlining process? Drill findings → re-generate → re-post → re-train.