# SDR CALA2021021500170

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 12, 2021
- Submitted: February 15, 2021
- Operation: Air carrier
- Aircraft: [N78003](https://openairdocs.org/aircraft/N78003), registered now
- Make and model: Boeing 777224
- Aircraft serial: 27579
- Aircraft time: 105,071 hours, 10,535 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery
- Part number: ADD71701100
- Part serial: 181792
- Condition: Failed
- Location: Emergency Lights
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2021021500170

## Discrepancy

SUPPORT TASK - AFT ZONE LH CEILING EMERGENCY LIGHT FOUND DIM REF NR LP 9130270 DR L3 M33405 AND M33407 EMER LIGHT PWR SUPPLY 2EA BATTERY PACK R EPLACED AND TESTED NORMAL AS PER AMM 33-51-06.

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