# SDR CALA2021021000157

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 9, 2021
- Submitted: February 10, 2021
- Operation: Air carrier
- Aircraft: [N769UA](https://openairdocs.org/aircraft/N769UA), registered now
- Make and model: Boeing 777222
- Aircraft serial: 26921
- Aircraft time: 98,909 hours, 17,491 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery
- Part number: ADD71701100
- Part serial: 249618
- Condition: Failed
- Location: Emergency Lights
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2021021000157

## Discrepancy

B777-33-3-7019 CABIN- EMER LT BATTERY PACK M33408 RESTORE FAIL R EFER TO NR LP:9130262 EMER LT BATTERY M33409 BATTERY PACK REPLACED AND INSTALLATION TE ST NORMAL IAW AMM 33-51-06 ADD EMP:V920595 IDT BY HX 147282, APPROVED

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