What was found
EMERGENCY EXIT SIGN NOT ILLUMINATE AT JUST BIHIND OF FLT DECK ENTRANCE. REPLACED M5169 EMERGENCY LIGHT POWER SUPPLY & EMER LIGHT BATTERY IAW AMM 33-51-04/201. EMERGENCY LIGHT OPERATION CHECK OK IAW AMM 33-51-00/501
- Difficulty date
- September 4, 2023
- Submitted
- September 5, 2023
- Operation
- Air carrier
- Aircraft
- N577UP
- Make and model
- Boeing 74744AF
- Aircraft serial
- 35666
- Aircraft time
- 54,730 hours, 8,453 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Charger
- Part number
- 20121
- Part serial
- BN104932
- Condition
- Inoperative
- Location
- Unknown
- Stage of operation
- IN
- How discovered
- 9
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.