# SDR ASAA2025073159855

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 31, 2025
- Submitted: August 5, 2025
- Operation: Air carrier
- Aircraft: [N964AK](https://openairdocs.org/aircraft/N964AK), registered now
- Make and model: Boeing 737-9
- Registry model: [Boeing 737-9](https://openairdocs.org/model/boeing-737-9) (OpenAirDocs)
- Aircraft serial: 44068
- Aircraft time: 8,992 hours, 2,503 cycles
- System (JASC): [3320 · Passenger Compartment Lighting](https://openairdocs.org/jasc/3320)
- Part: Sign
- Part number: BR9442923
- Condition: Melted
- Location: Zone 200
- Stage of operation: CL
- How discovered: V
- Nature of condition: M, B
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2025073159855

## Discrepancy

AFTER TAEKEOFF PASSING 4000' FLIGHT ATTENDANT IN AFT CALLED TO REPORT AFT NO SMOKING SIGN FLICKERED AND WAS HOT TO THE TOUCH. ALSO SMELLED BURNING PLASTIC SMELL. GROUNDED - YES. UNABLE DUPLICATE THE DEFECTS PLASTIC BURNING ODOR THAT FLT ATT REPORTED. GVI NO DISCREPANCIES FROM BOTH LEFT & RIGHT SMOKING SIGN ASSY, AFTACP, AFT GALLEY BREAKER PANEL. AFT COFFEE + WARMER, COFFEE MAKERS, OVEN OPS TEST NORMAL. REPLACED 2 AFT SEAT BELT SIGN ASSY AND OPS TEST NORMAL AMM 33-25-00, AMM 25-32-01, AMM 25-32-03, AMM 25-32-33. MSUN 1070819 08/01/2025 RUNNING BOTH ENGINES, APU AND PACKS GENERATE NO ODOER IN 5 MINUTES. FUNCTIONS ARE ALL NORMAL, ODER NO LONGER PRESENT.

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