What was found
UPPER DECK EMRGENCY LIGHT INOPERATIVE AT SEAT 73A TO 75A. FOUND BATTERY WEAK ON "M335" POWER SUPPLY AND REPLACED THE BATTERY. PERFORMED LIGHTS CKD OK IAW B744 AMM 33-51.
- Difficulty date
- June 4, 2016
- Submitted
- June 7, 2016
- Operation
- Air carrier
- Aircraft
- N670US
- Make and model
- Boeing 747451
- Aircraft serial
- 24225
- Aircraft time
- 108,816 hours, 13,308 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Battery Pack
- Condition
- Weak
- Location
- Emergency Light
- 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.