Service difficulty report · Adapter

Difficulty date
August 1, 2019
Submitted
August 1, 2019
Operation
Air carrier
Aircraft
N401ST
Aircraft serial
41624
Aircraft time
1,381 hours
Engine
Cont TSIO550C
Engine time
433 hours
Part
Adapter
Part number
642087A70
Part serial
QAA49466
Condition
Misoverhauled
Location
Starter
Stage of operation
IN
How discovered
9
Nature of condition
W
Precautionary procedure
K

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

What was found

NEWLY OVERHAULED STARTER ADAPTER WAS INSTALLED ON ENGINE. AFTER RE-ASSEMBLING REAR OF ENGINE WITH NEW ADAPTER, STARTER AND ALTERNATOR, THE ADAPTER WAS PRIMED WITH OIL FOR INITIAL ENGINE MOTORING. STARTER ADAPTER WOULD NOT CREATE THE PROPER SUCTION TO SCAVENGE THE OIL FROM BOTH TURBOCHARGER RESERVOIRS. BOTH TURBOCHARGER OIL RESERVOIRS WERE FILLING TO CAPACITY, CAUSING OIL TO FLOW PASS THE TURBO CARBON SEALS, THEN FLOWING OUT THE BOTH TAILPIPES. AFTER REPEATED ATTEMPTS WITH PRIMING THE STARTER ADAPTER, IT WAS DETERMINED THAT THE STARTER ADAPTER IS FAULTY AND INCAPABLE OF PERFORMING THE SCAVENGE FUNCTION AS IT WAS DESIGNED TO DO. THE STARTER ADAPTER WAS OVERHAULED BY QUALITY AIRCRAFT ACCESSORIES INC. (CRS # QYIR334Y).