52 - DOORS
- 52-00 DOORS
- 52-10 PASSENGER/CREW
- 52-11 FWD PASSENGER/CREW DOOR
- 52-13 AFT PASSENGER/CREW DOOR
- 52-20 EMERGENCY EXIT
- 52-21 PASSENGER COMPARTMENT EMERGENCY EXIT
- 52-22 PASSENGER COMPARTMENT EMERGENCY EXIT
- 52-30 CARGO
- 52-31 FORWARD CARGO COMPARTMENT DOOR
- 52-32 AFT CARGO COMPARTMENT DOOR
- 52-33 BULK CARGO COMPARTMENT DOOR
- 52-35 CARGO COMPARTMENT DOOR ELECTRICAL CONTROL SYSTEM
- 52-36 CARGO COMPARTMENT DOOR HYDRAULIC SYSTEM
- 52-40 SERVICE
- 52-41 ACCESS DOORS
- 52-42 SERVICE DOORS
- 52-50 FIXED INTERIOR
- 52-51 PASSENGER COMPARTMENT FIXED INTERIOR DOORS
- 52-70 DOOR WARNING
- 52-71 DOOR MONITORING AND FLIGHT LOCK FUNCTION
- 52-73 EMERGENCY ESCAPE SLIDE RELEASE AND OVERPRESSURE WARNING SYSTEMS
- 52-80 LANDING GEAR
- 52-81 MAIN GEAR DOORS
- 52-82 NOSE GEAR DOORS
- 52-90 MISCELLANEOUS DOORS
- 52-91 DOORS - RAM AIR TURBINE
- 52-92 DOOR - OVERPRESSURE RELEASE, APU COMPARTMENT