What was found
DURING ANNUAL, 100 HR INSPECTION, MAINTENANCE PERFORMED A DIFFERENTIAL PRESSURE LEAK CHECK OF ENGINE, CYLINDER NR 4 FAILED, 0/80 PSI, LEAKING BY EXHAUST VALVE. VISUAL INSPECTION CONFIRMED STUCK EXHAUST VALVE.
- Difficulty date
- July 18, 2016
- Submitted
- September 20, 2016
- Operation
- General aviation
- Aircraft
- N705LU
- Make and model
- Cessna 172S
- Aircraft serial
- 172S11426
- Aircraft time
- 1,269 hours
- Engine
- Lyc IO360L2A
- Engine time
- 1,269 hours
- System (JASC)
- 8530 · Reciprocating Engine Cylinder Section
- Part
- Cylinder
- Part number
- 05K21104
- Condition
- Worn
- Location
- Engine
- Part time
- 1,269 hours
- Component
- Engine · Lyc · IO360L2A
- Component part number
- IO360L2A
- Stage of operation
- IN
- How discovered
- V
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.