Service difficulty report · Battery Pack · Boeing 737990ER
FAA SDR system
- Difficulty date
- December 23, 2022
- Submitted
- December 27, 2022
- Operation
- Air carrier
- Make and model
- Boeing 737990ER
- Aircraft serial
- 41735
- Aircraft time
- 31,344 hours, 9,929 cycles
- Part
- Battery Pack
- Part number
- D71702001
- Condition
- No Test
- Location
- Emergency Lights
- 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.
What was found
WHILE COMPLETING T/C 78233001, EMERGENCY LIGHTS AT L1, R1, AND OVERWING RT AFT LIGHT FAILED BATTERY PACK CAPACITY CHECK. GROUNDED - YES. REPLACED MID RT AFT OVERWING (M1695) AND L1 (M1675) EMERGENCY BATTERY PACK, OPS NML REFB737-900 WDM 33-51-13. REMOVED AND REPLACED BATTERY FOR M2816 REF B737-900 AMM 33-51-06-960-805 AND WDM 33-51-13. ALL OP TESTS PASS.