SDR 2023FA0000427

Service difficulty report · Rocker · Robsin R22BETAII

Difficulty date: August 16, 2023
Submitted: August 16, 2023
Operation: General aviation
Aircraft: N115L
Make and model: Robsin R22BETAII
Aircraft serial: 4115
Aircraft time: 9,298 hours
Engine: Lyc O360J2A
Engine time: 5,632 hours
System (JASC): 8500 · Engine (Reciprocating)
Part: Rocker
Part number: 15F288353017F195
Part serial: NA
Condition: Damaged
Location: Valve Train
Part time: 5,632 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 PUSH RODS, ROCKER ARMS, TAPPET PLUNGERS & TAPPET SOCKETS TO HAVE MECHANICAL DAMAGE "HEAVY SCUFF - SCORING". LYCOMING FACTORY OVERHAULED O-360-J2A, S/N L-41989-36E, 7/20/2022, ETT: 5632.1, ETSO: 498.8