# SDR IPXA2021120976792

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 8, 2021
- Submitted: December 13, 2021
- Operation: Air carrier
- Aircraft: [N256UP](https://openairdocs.org/aircraft/N256UP), registered now
- Make and model: Doug MD-11F
- Registry model: [Doug MD-11F](https://openairdocs.org/model/mcdonnell-douglas-md-11f) (OpenAirDocs)
- Aircraft serial: 48405
- Aircraft time: 88,892 hours, 19,490 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: None
- Condition: None
- Location: Cabin
- Stage of operation: TX
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/IPXA2021120976792

## Discrepancy

INSPECTION TYPE:N/A** SUPPLEMENTAL SDR**FLIGHT CREW NOTIFIED, ON PREFLIGHT EMERGENCY BATTERY 3 LOW MESSAGE. DEFERRED PER MEL 33-50-4. PLACARD INSTALLED. C\W DMP 33-50-4. ASSIGNED CONTROL # M765643R&R EMERGENCY BATTERY IAW AMM 33-51-01-401. NO HELP. R&R MSC IAW AMM 31-42-01-401. OPS CK EMER BATT IAW AMM 33-51-01-700-802 TEST GOOD. REVERSED DMP 30-50-4. PLACARD REMOVED.

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