# SDR IPXA2025081222186

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 12, 2025
- Submitted: August 12, 2025
- Operation: Air carrier
- Aircraft: [N284UP](https://openairdocs.org/aircraft/N284UP), registered now
- Make and model: Doug MD-11F
- Registry model: [Doug MD-11F](https://openairdocs.org/model/mcdonnell-douglas-md-11f) (OpenAirDocs)
- Aircraft serial: 48541
- Aircraft time: 76,497 hours, 16,649 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery
- Part number: 6044115
- Part serial: 0710
- Condition: No Test
- Location: Zone 200
- 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/IPXA2025081222186

## Discrepancy

PRE FLIGHT,  DURING EMER LIGHT TEST GOT €Œ L1 EMER LT BAT 1 LO. ? REMOVED AND REPLACED EMERGENCY POWER SUPPLY BATTERY IAW AMM 33-51-01. REVERSED DMP 33-50-4. OPS CHECK GOOD PER AMM 33-51-01.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.