# SDR 4VAA202604020003

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 31, 2026
- Submitted: April 2, 2026
- Operation: Air carrier
- Aircraft: [N681SA](https://openairdocs.org/aircraft/N681SA), registered now
- Make and model: Saab 2000SAAB
- Aircraft serial: 021
- Aircraft time: 28,737 hours, 28,545 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Part number: 330151
- Part serial: 2131
- Condition: Failed
- 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/4VAA202604020003

## Discrepancy

DURING INSPECTION, THE EMERGENCY LIGHT LOWER LEFT HAND FAILED A FUNCTIONAL CHECK. FURTHER, THE EMERGENCY LIGHT POWER SUPPLY 15LN FAILED A FUNCTIONAL CHECK. THE POWER SUPPLY 15LN WAS REPLACED. OPERATIONAL CHECKS WERE GOOD WITH NO FURTHER DEFECTS NOTED.

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