SDR 2023FA0000294

Service difficulty report · Rocker · Robsin R22BETAII

Difficulty date: June 2, 2023
Submitted: June 2, 2023
Operation: General aviation
Aircraft: N194LE
Make and model: Robsin R22BETAII
Aircraft serial: 4094
Aircraft time: 9,126 hours
Engine: Lyc O360J2A
Engine time: 667 hours
System (JASC): 8530 · Reciprocating Engine Cylinder Section
Part: Rocker
Condition: Damaged
Location: Valve Train
Part time: 667 hours
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.

What was found

DURING ROUTINE MX, LYCOMING SB388C (EXHAUST VALVE GUIDE INSPECTION) FOUND 3 OF 4 EXHAUST ROCKER ARMS, PUSH RODS & LIFTER SOCKETS TO HAVE MECHANICAL DAMAGE "HEAVY SCUFF". LYCOMING FACTORY OVERHAULED, O-360-J2A, S/N L-41749-36E, ETT: 667.2, ETSO: 330.6