Service difficulty report · Battery Pack · Boeing 737990ER
FAA SDR system
- Difficulty date
- May 7, 2025
- Submitted
- May 8, 2025
- Operation
- Air carrier
- Make and model
- Boeing 737990ER
- Aircraft serial
- 36365
- Aircraft time
- 29,762 hours, 9,508 cycles
- Part
- Battery Pack
- Part number
- ADD71701100
- 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.
What was found
WHILE ACCOMPLISHING T/C 78233001, AFT L/H GALLEY AND EXTERIOR EMERGENCY LIGHT, AFT R/H EMERGENCY EXIT DOOR AND AFT R/H CABIN EMERGENCY LIGHTS WENT OFF AND FAILED OPS CHECK. GROUNDED - YES. REMOVED & REPLACED EMERGENCY LIGHTS BATTERY PACKS M1671 & M1673 IAW AMM 33-51-06-960-805. TEST FOR ASSOCIATED LIGHTS PASSED.