What was found
EMERGENCY LIGHTS AT EXTERIOR LEFT OVERWING UPPER 2 INOPERATIVE. REPLACED POWER SUPPLY AND BATTERY AT L3 DOOR. OPS NORMAL REF MM 33-51-04.
- Difficulty date
- May 12, 2012
- Submitted
- June 23, 2012
- Operation
- Air carrier
- Aircraft
- N121UA
- Make and model
- Boeing 747422
- Aircraft serial
- 29167
- Aircraft time
- 54,690 hours, 6,436 cycles
- Engine
- Pwa PW4056
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Battery
- Part number
- 582233
- Condition
- Inoperative
- Location
- Emergency Light
- Stage of operation
- IN
- How discovered
- C
- Nature of condition
- L
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.