# SDR CALA2024041901145

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 18, 2024
- Submitted: April 19, 2024
- Operation: Air carrier
- Aircraft: [N776UA](https://openairdocs.org/aircraft/N776UA), registered now
- Make and model: Boeing 777222
- Aircraft serial: 26937
- Aircraft time: 102,587 hours, 18,644 cycles
- System (JASC): [3300 · Lighting System](https://openairdocs.org/jasc/3300)
- Part: Battery Pack
- Part number: ADD71701100
- Condition: No Test
- Location: Emergency Lights
- Stage of operation: IN
- How discovered: C
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2024041901145

## Discrepancy

B777-33-3-7019 - DR 4L M33407 EMER LIGHT BATTERY TEST FAIL TRANSFER REFER - NONROUTINE WO.3041433 AND ORIGINATED BY.  DR 4L M33407 EMER LIGHT BATTERY REPLACED AND TESTED NORMAL AS PER AMM 33-51-06 ATTACHED FORM 44-0008 ITEM 1 TO 2.

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