# SDR AALA202601293423

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 21, 2026
- Submitted: January 29, 2026
- Operation: Air carrier
- Aircraft: [N306RC](https://openairdocs.org/aircraft/N306RC), registered now
- Make and model: Boeing 737-8
- Registry model: [Boeing 737-8](https://openairdocs.org/model/boeing-737-8) (OpenAirDocs)
- Aircraft serial: 44465
- Aircraft time: 19,552 hours, 7,302 cycles
- System (JASC): [4940 · APU Start/Ignition System](https://openairdocs.org/jasc/4940)
- Part: Starter
- Part number: 28B5459
- Part serial: 87F2795
- Condition: Burned Out
- Location: Zone 200
- Part time: 19,573 hours, 7,313 cycles
- Stage of operation: DE
- How discovered: O
- Nature of condition: B
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202601293423

## Discrepancy

AIRCRAFT WAS GROUNDED: FLIGHT DECK AND CABIN CREW NOTICED A VERY POTENT SMELL THROUGHOUT AIRCRAFT. NOTICED IT BELOW 10K FEET ON DESCENT AND REMAINED UNTIL SHUTDOWN AT GATE. WHAT COULD BE DESCRIBED AS "BURNING PLASTIC" SMELL. **SUPPLEMENTAL REPORT FOR (AALA202601223423) SUBMITTED 01/26/2026 BY DFW: WHILE PERFORMING J/C 09L00021001, FOUND APU STARTER GENERATOR SHOWING SIGNS OF EXCESSIVE BURNING, PAINT FLAKING, AND STRONG BURNT SMELL. REMOVE AND REPLACED APU STARTER GENERATOR, PER AMM 49-41-21. OPS AND LEAK CHECK GOOD**(CLOSED).

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