What was found
AIRCRAFT WAS NOT GROUNDED: EMERGENCY LIGHT SYS- STATUS MSG-ACTIVE FAULT-33-11311. CLASS II REMOTE WELS CONTROL UNIT BATTERY POWER DEGRADED. MAINTENANCE REPLACED 24WBU IAW AMM 33-51-07.
- Difficulty date
- January 23, 2025
- Submitted
- January 27, 2025
- Operation
- Air carrier
- Aircraft
- N819AN
- Make and model
- Boeing 7878
- Aircraft serial
- 40637
- Aircraft time
- 29,770 hours, 4,292 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Power Supply
- Part number
- 100260201
- Condition
- Faulted
- Location
- Zone 200
- Stage of operation
- IN
- How discovered
- C
- Nature of condition
- J, L
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.