What was found
DURING 50 HOUR OIL CHANGE OF LT ENGINE CYLINDER 2 AND 4 FAILED DIFFERENTIAL PRESSURE CYLINDER LEAK CHECK. LEAK BY EXHAUST VALVES ON BOTH CYLINDERS.
- Difficulty date
- June 24, 2016
- Submitted
- September 20, 2016
- Operation
- General aviation
- Aircraft
- N783LU
- Make and model
- Piper PA44180
- Aircraft serial
- 4496391
- Aircraft time
- 440 hours
- Engine
- Lyc O360A1H6
- Engine time
- 440 hours
- System (JASC)
- 8530 · Reciprocating Engine Cylinder Section
- Part
- Cylinder
- Part number
- 05K21104
- Condition
- Worn
- Location
- Lt Engine
- Part time
- 440 hours
- Component
- Engine · Lyc · O360A1H6
- Component part number
- O360A1H6
- 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.