What was found
DURING SCHEDULED 50 HOUR OIL CHANGE AND INSPECTION, CYLINDER NR 1 FAILED DIFFERENTIAL CYLINDER LEAK CHECK, 57/80 PSI, LEAKING BY EXHAUST VALVE.
- Difficulty date
- September 19, 2016
- Submitted
- September 19, 2016
- Operation
- General aviation
- Aircraft
- N709LU
- Make and model
- Cessna 172S
- Aircraft serial
- 172S11419
- Aircraft time
- 391 hours
- Engine
- Lyc IO360L2A
- Engine time
- 391 hours
- System (JASC)
- 8530 · Reciprocating Engine Cylinder Section
- Part
- Exhaust Valve
- Condition
- Leaking
- Location
- Nr 1 Cylinder
- Part time
- 391 hours
- Stage of operation
- IN
- How discovered
- 9
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.