# SDR UIEA2024031800157

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 19, 2024
- Submitted: March 19, 2024
- Operation: Air carrier
- Aircraft: [N5233A](https://openairdocs.org/aircraft/N5233A), registered now
- Make and model: Boeing 737-8
- Registry model: [Boeing 737-8](https://openairdocs.org/model/boeing-737-8) (OpenAirDocs)
- Aircraft serial: 34029
- Aircraft time: 52,488 hours, 25,529 cycles
- System (JASC): [4900 · Airborne Auxiliary Power Unit (APU) System](https://openairdocs.org/jasc/4900)
- Part: Light
- Part number: UNKNOWN
- Condition: None
- Stage of operation: TX
- How discovered: O
- Nature of condition: P
- Precautionary procedure: D
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UIEA2024031800157

## Discrepancy

#2 ALTN LIGHT DID NOT ILLUMINATE PER 73-11-01.  CYCLED #2 ALTN SWITCH LIGHT PER AMM 20-60-00, SYSTEM OPS CHECK GOOD.

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