Service difficulty report · Power Supply · Boeing 737890
FAA SDR system
- Difficulty date
- October 15, 2025
- Submitted
- October 17, 2025
- Operation
- Air carrier
- Make and model
- Boeing 737890
- Aircraft serial
- 35192
- Aircraft time
- 59,856 hours, 18,439 cycles
- Part
- Power Supply
- Part number
- D71702100
- Condition
- No Test
- 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.
What was found
WHILE ACCOMPLISHING TC 78233001, BATTERY PACKS FOR BOTH AFT WING DOORS AND AFT FLAP EMERGENCY LIGHTS INOP. EMERGENCY LIGHT FOR R2 DOOR INOP AS WELL. GROUNDED - YES. REPLACED EMERGENCY LT BATTERY & POWER SUPPLY 3 EA, M1670, M1671, M1672. REF AMM 33-51-06. OP CHK GOOD.