What was found
AIRCRAFT IN BASE MAINTENANCE: ALL EMERGENCY LIGHTING FROM ROW 1 HD TO 10 HD INCLUDING EXIT DOORS, OVERHEAD LIGHTS AND ISLE LIGHTS FAILED EMERGENCY BATTERY CAPACITY TEST. MAINTENANCE REPLACED POWER SUPPLY M33424.
- Difficulty date
- January 6, 2026
- Submitted
- April 7, 2026
- Operation
- Air carrier
- Aircraft
- N772AN
- Make and model
- Boeing 777223
- Aircraft serial
- 29580
- Aircraft time
- 102,753 hours, 13,350 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Power Supply
- Condition
- Faulty
- Location
- Zone 200
- Stage of operation
- IN
- How discovered
- V
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.