What was found
EMERGENCY LIGHT EXIT SIGN BATTERY M1673 FAILS TASK CARD 33-055-00. GROUNDED - YES. REPLACED EMERGENCY LIGHT M1673 BATTERY PACK PER AMM 33-51-06. BATTERY PACK CHECKS GOOD AREA ACCESSED BY MAINTENANCE. SEAL ADDRESSED BY MAINTENANCE.
- Difficulty date
- December 7, 2025
- Submitted
- December 12, 2025
- Operation
- Air carrier
- Aircraft
- N973AK
- Make and model
- Boeing 7379
- Aircraft serial
- 43346
- Aircraft time
- 13,777 hours, 4,023 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Power Supply
- Part number
- D71702001
- Condition
- Inoperative
- 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.