SDR EVGR062910

Service difficulty report · Collar

Difficulty date
March 22, 2010
Submitted
June 29, 2010
Operation
General aviation
Filed by
EVGR735D
Jaars Inc
Engine
Cont TSIO520*
Part
Collar
Part number
626739M010
Condition
Bent
Location
Transfer Collar
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

(EVGR) PN 626739M010 TRANSFER COLLAR. THE COLLAR SEEMS TO HAVE BEEN DAMAGED AFTER IT WAS GROUND. ON ONE SIDE THE SPLIT LINE DOES NOT LINE UP, YOU CAN CATCH A FINGERNAIL ON IT. WHEN INSTALLED IT IS TIGHT AND RUBS AT THAT POINT AS SHOWN BY THE MAGIC MARKER RUBBED OFF (PICTURES AVAILABLE ON REQUEST). WHEN THE DIAMETER IS MEASURED WITH BORE GAGE ON EACH SIDE OF THE SPLIT, THERE IS A DIFFERENCE OF .0033. THE MAX CLEARANCE ON THE SHAFT IS .0018. THE PART WAS RETURNED TO THE VENDOR FOR WARRANTY REPLACEMENT.