SDR 2002FA0000898

Service difficulty report · Cotter Pin

Difficulty date: July 22, 2002
Submitted: July 31, 2002
Operation: General aviation
Engine: Pwa PT6A27
System (JASC): 7532 · Compressor Bleed Valve
Part: Cotter Pin
Part number: MS924530
Condition: Broken
Location: Bleed Valve
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 TEARDOWN OF COMPONENT TO CLEAN FOR AN OVERHAUL INSPECTION, BROKEN PIECES OF COTTER PIN WERE FOUND. THE PISTON GUIDE PIN WAS LOOSE INSIDE. THE GUIDE PIN IS HELD IN THE COVER BY A PRESSFIT AND THE COTTER PIN, NORMALLY. THE COVER, GUIDE PIN AND COTTER PIN WILL BE SCRAPPED. A SERVICEABLE COVER WILL BE USED TO REPLACE THE SCRAPPED PARTS.