What was found
EMERGENCY LIGHT UPPER DECK IS INOPERATIVE. TROUBLE SHOT IAW WD 33-51-71. REMOVED AND REPLACED THE M5169 POWER SUPPLY IAW AMM 33-51-04. EMERGENCY LIGHTS OPERATIONAL TEST OK IAW AMM 33-51-00.
- Difficulty date
- July 29, 2020
- Submitted
- July 30, 2020
- Operation
- Air carrier
- Aircraft
- N493MC
- Make and model
- Boeing 74747UF
- Aircraft serial
- 29254
- Aircraft time
- 89,160 hours, 14,408 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Power Supply
- Part number
- BP573
- Part serial
- 42036NBSP
- Condition
- Inoperative
- Location
- Emergency Lights
- 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.