# SDR DALA2024042904763

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 27, 2024
- Submitted: April 29, 2024
- Operation: Air carrier
- Aircraft: [N866DN](https://openairdocs.org/aircraft/N866DN), registered now
- Make and model: Boeing 737-900ER
- Registry model: [Boeing 737-900ER](https://openairdocs.org/model/boeing-737-900er) (OpenAirDocs)
- Aircraft serial: 31977
- Aircraft time: 23,752 hours, 9,159 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Part number: UNKNOWN
- Condition: No Test
- Location: Emergency Light
- 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/DALA2024042904763

## Discrepancy

(LOG 5306014) DURING WORK CARD 3350-7413 FOUND POWER SUPPLY M1672 INOP. R/R POWER SUPPLY M1672 AND BATTERY PER B737 AMM 33-51. OPS CK GOOD OK FOR SVC.

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