What was found
CB POPPED L1 EMERGENCY LIGHTS M33424 EMERGENCY LIGHTS POWER SUPPLY SUSPECTED TO BE AT FAULT. POWER SUPPLY TO REPLACED IAW 33-51-06-960-803. EMERGENCY LIGHTS OPS TEST ACCOMPLISHED. ALL OPS NOW OK. IAW AMM 33-51-00-710-801.
- Difficulty date
- June 14, 2026
- Submitted
- June 15, 2026
- Operation
- Air carrier
- Aircraft
- N206UA
- Make and model
- Boeing 777222
- Aircraft serial
- 30212
- Aircraft time
- 108,338 hours, 14,126 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Battery Pack
- Part number
- ADD71701100
- Condition
- Faulted
- Location
- Zone 200
- 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.