# SDR CALA2021091701595

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 16, 2021
- Submitted: September 17, 2021
- Operation: Air carrier
- Aircraft: [N27015](https://openairdocs.org/aircraft/N27015), registered now
- Make and model: Boeing 777224
- Aircraft serial: 28678
- Aircraft time: 100,175 hours, 10,004 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery
- Part number: ADD71701100
- Part serial: 222955
- Condition: No Test
- Location: Emergency Lights
- Stage of operation: IN
- How discovered: C
- Nature of condition: L
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2021091701595

## Discrepancy

SUPPORT TASK - DR L4 EMER LIGHT PWR SUPPLY M33407 BATTERY PACK CAPACITY CHECK FAIL. TRANSFER REF. NON-ROUTINE LP 9131496 AND ORIGINATED BY EMP V902113. DR L4 EMER LIGHT PWR SUPPLY M33407 BATT PACK REPLACED AND TESTED NORMAL AS PER AMM 33-51-06. WORK ACCOMPLISHED BY MECHANIC V898181 INSPECTED BY V896958. ADD EMP:V896958 IDT INSPECTED OKAY BY HX107723. ADD EMP:V907050

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