# SDR CALA2026091819542

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 17, 2026
- Submitted: September 18, 2026
- Operation: Air carrier
- Aircraft: [N76269](https://openairdocs.org/aircraft/N76269), registered now
- Make and model: Boeing 737824
- Aircraft serial: 31588
- Aircraft time: 77,385 hours, 27,982 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Part number: D71702001
- Condition: Faulted
- 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/CALA2026091819542

## Discrepancy

ALL LIGHTS ASSOCIATED WITH EPSU M1671 INOPERATIVE.  REF SSM REF SSM 33-51-14-102.  REMOVED AND REPLACED THE EPSU ASSY M1671 IAW AMM 33-51-06-960-806. OPS CHECKED NORMAL.

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