Service difficulty report · Valve

Difficulty date
May 5, 2006
Submitted
May 6, 2006
Operation
General aviation
Engine
Lyc O360J2A
Engine time
260 hours
Part
Valve
Condition
Malfunctioned
Component
Engine · Lyc · 0360J2A
Stage of operation
CR
How discovered
O
Nature of condition
E
Precautionary procedure
R

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

NEW ENGINE IN NEW HELICOPTER. AFTER FLYING 1.5 HOURS, ENGINE WILL START POPPING AND BACKFIRING, CAUSING AN AUTOROTATION. MFG SAID IT'S A NORMAL MAINTENANCE ITEM TO REMOVE VALES AND REAM VALVE GUIDES.