What was found
NR 4 CYLINDER HEAD CRACKED ACROSS COOLING FINS IN FLIGHT. CREW NOTICED LOSS OF POWER/SHUDDER.
- Difficulty date
- September 9, 2025
- Submitted
- September 9, 2025
- Operation
- General aviation
- Aircraft
- N99040
- Make and model
- Cessna 172P
- Aircraft serial
- 17276395
- Engine
- Lyc O360A4M
- Engine time
- 1,186 hours
- System (JASC)
- 8530 · Reciprocating Engine Cylinder Section
- Part
- Cylinder Head
- Part number
- SL36006W
- Part serial
- 366WG2825604
- Condition
- Cracked
- Location
- Nr 4
- Part time
- 1,186 hours
- Stage of operation
- CR
- How discovered
- C
- Nature of condition
- R
- Precautionary procedure
- D
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.