What was found
DURING AN EMERGENCY LIGHTS TEST, MAINTENANCE DISCOVERED EMERGENCY LIGHTS IN ZONE 1 AND 4 FAILED. REMOVED AND REPLACED BATTERY PACKS M730 AND M736 AND POWER SUPPLY M9004. OPS CHECK GOOD.
- Difficulty date
- July 16, 2012
- Submitted
- July 17, 2012
- Operation
- Air carrier
- Aircraft
- N525US
- Make and model
- Boeing 757251
- Aircraft serial
- 23619
- Aircraft time
- 71,719 hours, 30,446 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Battery Pack
- 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.