What was found
EMERGENCY POWER SUPPLY UNIT M33424 FAILED CAPACITY CHECK. REMOVED AND REPLACED EMERGENCY POWER SUPPLY UNIT IAW AMM 33-51-06. OPERATIONAL CHECK GOOD.
- Difficulty date
- December 13, 2016
- Submitted
- December 16, 2016
- Operation
- Air carrier
- Aircraft
- N776AN
- Make and model
- Boeing 777223
- Aircraft serial
- 29582
- Aircraft time
- 72,503 hours, 8,766 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Power Supply
- Part number
- D71702001
- Part serial
- 16386
- Condition
- Failed
- Location
- Emergency Lights
- Part time
- 20,733 hours, 2,315 cycles
- 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.