SDR 2001FA0000031

Service difficulty report · Guide

Difficulty date: June 5, 2001
Submitted: June 20, 2001
Operation: General aviation
Engine: Lyc O360F1A6
System (JASC): 8530 · Reciprocating Engine Cylinder Section
Part: Guide
Part number: AEL74230P010
Condition: Out Of Tolerance
Location: Exhaust
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

CYLINDER HAD LOW COMPRESSION READINGS, 20/80. CYLINDER WAS REMOVED FROM ENGINE AND INSPECTED. EX. GUIDE WAS INSPECTED AND FOUND TO BE OUT OF SERVICE LIMITS. EX GUIDE ID WAS MEASURED, AND A READING OF .5325 WAS TAKEN. MAX SERVICE DIMENSION FOR A 300 HR CYLINDER EX GUIDE ID IS .5015/.5025 PER LYCOMING O/H MANUAL 60294-7-8. THIS CYLINDER HAD 236 HOURS SINCE OVERHAUL.