# SDR UIEA2016031800190

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 17, 2016
- Submitted: March 21, 2016
- Operation: Air carrier
- Aircraft: [N640GT](https://openairdocs.org/aircraft/N640GT), registered now
- Make and model: Boeing 767-3S1
- Registry model: [Boeing 767-3S1](https://openairdocs.org/model/boeing-767-3s1) (OpenAirDocs)
- Aircraft serial: 25221
- Aircraft time: 79,755 hours, 16,858 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Part number: 20131A
- Part serial: 107058
- Condition: Discharged
- Location: Cabin
- 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/UIEA2016031800190

## Discrepancy

ON DAILY CHECK FOUND LT SIDE EXTERIOR EMER OVERWING LIGHT INOPERATIVE.  TROUBLE SHOT IAW WDM 33-51-00.  FOUND BAD BATTERY PACK ON POWER SUPPLY M736.  R & R BATTERY PACK.  OPERATIONS CHECKED NORMAL IAW 33-51-01.

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