What was found
AIRCRAFT IN BASE MAINTENANCE: 4L DOOR FAILED EMERGENCY POWER ASSIST SYSTEM OPERATIONAL CHECK. REPLACED SWITCH S52121 AND ACCOMPLISHED A SATISFACTORY OPERATIONAL CHECK PER AMM 52-11-28.
- Difficulty date
- March 15, 2022
- Submitted
- March 17, 2022
- Operation
- Air carrier
- Aircraft
- N790AN
- Make and model
- Boeing 777223
- Aircraft serial
- 30251
- Aircraft time
- 80,746 hours, 10,476 cycles
- System (JASC)
- 5210 · Passenger/Crew Doors
- Part
- Switch
- Part number
- 624EN334R
- Condition
- Defective
- Location
- Zone 800 - Doors
- Stage of operation
- IN
- How discovered
- C
- Nature of condition
- L
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.