# SDR HYIA20260327002

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 26, 2025
- Submitted: March 27, 2026
- Operation: Air carrier
- Aircraft: [N699CA](https://openairdocs.org/aircraft/N699CA), registered now
- Make and model: Tecnam P2012
- Aircraft serial: 010US
- Aircraft time: 3,540 hours, 3,556 cycles
- Engine: Lyc TEO540C1A
- Engine time: 3,544 hours, 3,343 cycles
- System (JASC): [8530 · Reciprocating Engine Cylinder Section](https://openairdocs.org/jasc/8530)
- Part: Nut
- Condition: Broken
- Location: Eng Cylinger
- Component: Engine, Lyc
- Component part number: TEO540C1A
- 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/HYIA20260327002

## Discrepancy

DURING TROUBLESHOOTING FOR A HIGH OIL CONSUMPTION CONCERN, IT WAS DISCOVERED THE RH ENG #2 CYLINDER BASE NUTS 1/2 IN. #3 AND 3/8 # 2,3,4 BROKEN AND MISSING FROM THROUGH STUDS. THE ENGINE WAS REPLACED WITH NO FURTHER ISSUES NOTED.

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