Service difficulty report · Battery Pack · Boeing 737890
FAA SDR system
- Difficulty date
- September 8, 2025
- Submitted
- September 9, 2025
- Operation
- Air carrier
- Make and model
- Boeing 737890
- Aircraft serial
- 35185
- Aircraft time
- 66,803 hours, 20,419 cycles
- Part
- Battery Pack
- Part number
- ADD71701100
- Condition
- No Test
- 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 WORKING TC 78233001, EMERGENCY LIGHTING BATTERIES FAILED CAPACITANCE CHECKS. LH & RH OWE LIGHTS, L2 DOOR EXIT LIGHTS & 18-26 ABC. GROUNDED - YES. M1694, M1695, M1675 & M1670 POWER SUPPLY BATTERY PACKS REMOVED & REPLACED REF AMM 33-51-00-960-805. OPS CHECKS GOOD.