# SDR DALA2026062903834

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 27, 2026
- Submitted: June 29, 2026
- Operation: Air carrier
- Aircraft: [N712TW](https://openairdocs.org/aircraft/N712TW), registered now
- Make and model: Boeing 757-2Q8
- Registry model: [Boeing 757-2Q8](https://openairdocs.org/model/boeing-757-2q8) (OpenAirDocs)
- Aircraft serial: 27624
- Aircraft time: 104,248 hours, 27,158 cycles
- System (JASC): [2210 · Autopilot System](https://openairdocs.org/jasc/2210)
- Part: Control Panel
- Part number: 6224717004
- Part serial: 2175
- Condition: Odor
- Location: Zone 200
- Part time: 103,855 hours, 10,938 cycles
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2026062903834

## Discrepancy

PASSING THRU APPROX 8000' MSL ON ARRIVAL QUICK SCENT OF BURNING PLASTIC (NOT OVERWHELMING) IN COCKPIT DISSIPATED QUICKLY. AT SAME TIME L AUTOPILOT EICAS AND DISENGAGED. AUTOPILOT REENGAGED UPON COMMAND AND NO FURTHER ISSUES.  AS A PRECAUTION, REMOVED & REPLACED MODE CONTROL PANEL IAW AMM 22-11 & ALSO REPLACED RECIRC FILTERS IAW AMM 21- 25. ALL OPS NORMAL. REF LOGPAGE 1668960 FOR MSI STEPS C/W. (8316203) AIRCRAFT WAS GROUNDED.

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