What was found
LOW 77A TO 79A EMERGENCY LIGHT WON'T ILLUMINATE. REPLACED POWER SUPPLY (M334), CHECK OK REF AMM 33-50.
- Difficulty date
- March 18, 2017
- Submitted
- March 20, 2017
- Operation
- Air carrier
- Aircraft
- N670US
- Make and model
- Boeing 747451
- Aircraft serial
- 24225
- Aircraft time
- 111,848 hours, 13,607 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Power Supply
- Condition
- Inoperative
- Location
- Cabin
- 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.