# SDR 2026FA0000158

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 5, 2026
- Submitted: March 6, 2026
- Operation: General aviation
- Aircraft: [N759QH](https://openairdocs.org/aircraft/N759QH), registered now
- Make and model: Cessna 182Q
- Registry model: [Cessna 182Q](https://openairdocs.org/model/cessna-182q) (OpenAirDocs)
- Aircraft serial: 18266171
- Aircraft time: 8,782 hours, 8,782 cycles
- Engine: Cont O470U
- Engine time: 1,206 hours, 1,206 cycles
- System (JASC): [7120 · Engine Mount Section](https://openairdocs.org/jasc/7120)
- Part: Mount
- Part number: 07516001
- Condition: Corroded
- Location: Engine
- Part time: 1,206 hours, 1,206 cycles
- Component: Heat Shield
- Component part number: STCSA00496SE
- 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/2026FA0000158

## Discrepancy

THE DISSIMILAR METAL TAPE SUPPLIED IN STC SA00496SE (U-LINE ELECTRICAL TAPE) IS CAUSING CORROSION ON THE ENGINE MOUNT TO THE POINT OF REPLACING THE ENGINE MOUNT WITH IN 500-100HRS AFTER INSTALLING THE STC. THIS HAS HAPPENED ON THREE OF OUR FLEET AIRCRAFT IN THE LAST 2 WEEKS. I BELIEVE THE ADHESIVE ON THE TAPE IS CAUSING THE POWDER COAT AND CORROSION ON THE THE CHROMOLY ENGINE MOUNT. THE CORROSION ONLY OCCURS WHERE THE TAPE IS APPLIED. ALL ENGINE MOUNTS WERE PURCHASED NEW FROM AWI DURING THE NEW ENGINE INSTALL.

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