# SDR CALA2021020100110

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 1, 2021
- Submitted: February 1, 2021
- Operation: Air carrier
- Aircraft: [N643UA](https://openairdocs.org/aircraft/N643UA), registered now
- Make and model: Boeing 767322
- Aircraft serial: 25093
- Aircraft time: 119,962 hours, 18,534 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Condition: Failed
- Location: Aft Emer Placard
- Stage of operation: IN
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2021020100110

## Discrepancy

AFT EMERGENCY PLACARDS NEAR DOORS DO NOT ILLUMINATE WHEN TESTED.  R & R EMERGENCY POWER SUPPLY BATTERY M734 IAW B76 7 AMM 33-51-07.  L311 AND L306 OPS CHECK GOOD IAW B767 AMM 33-51- 00-715-019-001.

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