# SDR AALA202604071761

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 3, 2026
- Submitted: April 7, 2026
- Operation: Air carrier
- Aircraft: [N958NN](https://openairdocs.org/aircraft/N958NN), registered now
- Make and model: Boeing 737823
- Aircraft serial: 31203
- Aircraft time: 34,131 hours, 14,287 cycles
- System (JASC): [2140 · Heating System](https://openairdocs.org/jasc/2140)
- Part: Heater
- Condition: Failed
- Location: Zone 200
- Stage of operation: CR
- How discovered: O
- Nature of condition: B
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202604071761

## Discrepancy

AIRCRAFT WAS GROUNDED: DURING FLIGHT THE FLIGHT ATTENDANT 3 AND 4 REPORTED BURNING ODOR NEAR 4L DOOR WHICH CAUSED NOSE AND THROAT IRRITATION. CLOSING THE VENT ABOVE DOOR 4L HELPED REDUCE THE SMELL. NO SMOKE OR FUMES WERE REPORTED WITH THE ODOR. ACCOMPLISHED WORK CARD 08L00021001. FOUND AFT DOOR AREA HEATERCLOGGED AND FOUND DAMAGED BURNT WIRING. CHECKED CONTINUITY INTERNAL FUSE. FUSE IS OPEN. REPLACED HEATER, PER AMM 21-45-01.

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