# SDR CALA2022021400368

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 11, 2022
- Submitted: February 14, 2022
- Operation: Air carrier
- Aircraft: [N75426](https://openairdocs.org/aircraft/N75426), registered now
- Make and model: Boeing 737900
- Aircraft serial: 31622
- Aircraft time: 43,023 hours, 14,886 cycles
- System (JASC): [3300 · Lighting System](https://openairdocs.org/jasc/3300)
- Part: Battery Pack
- Part number: ADD71701100
- Condition: Faulty
- Location: M1670
- Stage of operation: IN
- How discovered: O
- Nature of condition: L
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2022021400368

## Discrepancy

MULT-33-3-0004 EMERGENCY LIGHTING SYSTEM FUNCTIONAL CHECK STEP A 3 (C) DID NOT STAY MORE THAN 5 MINUTES LH SIDE FROM ROW 23 TO 2 6 REMOVED & REPLACED EMERGENCY LIGHT BATTERY PACK M1670 IAW AMM 33 -51-06-960-805. OPS CHECK GOOD IAW AMM 33-51-06-710-004. DATA WA S TRANSCRIBED FROM PAPER DOC AERSALE WO 3520 NR 21264 WORK ACP B Y MECH V928027 INSP BY AQC008

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