What was found
NR 5 CYLINDER ON LT ENGINE INBOARD EXHAUST ROCKER SHAFT ARM BOSS BROKE OFF CYLINDER. NO EVIDENCE OF PREVIOUS CRACK. NO INDICATION OF VALVE CONTACTING PISTON. SUSPECT CASTING DEFECT AT MANUFACTURER.
- Difficulty date
- October 23, 1995
- Submitted
- March 26, 2000
- Operation
- General aviation
- Aircraft
- N26556
- Make and model
- Piper PA31P
- Aircraft serial
- 31P7400184
- Engine
- Lyc TIGO541E1A
- System (JASC)
- 8530 · Reciprocating Engine Cylinder Section
- Part
- Cylinder
- Part number
- L12215
- Condition
- Boss Broken
- Location
- Lt Eng Nr 5 Exh
- Stage of operation
- IN
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.