# SDR IPXA2020092960771

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 29, 2020
- Submitted: September 30, 2020
- Operation: Air carrier
- Aircraft: N272UP
- Make and model: Doug MD-11F
- Registry model: [Doug MD-11F](https://openairdocs.org/model/mcdonnell-douglas-md-11f) (OpenAirDocs)
- Aircraft serial: 48571
- Aircraft time: 67,558 hours, 17,599 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Condition: Discharged
- 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/IPXA2020092960771

## Discrepancy

INSPECTION TYPE: NA EMERGENCY LT BAT 1 LOW.  DEFERRED EMERGENCY LIGHTING SYSTEM, PER MEL 33-50-4 CW DMP 33-50-4.  REMOVED AND REPLACED EMERGENCY LIGHT POWER SUPPLY, PER MM 33-51-01-401.  REVERSED DMP 33-50-4.  OPERATIONS CHECKS GOOD.  M721465 CLOSED.  ESR 33-51-01-05-015.

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