Service difficulty report · Header

Difficulty date
February 1, 2011
Submitted
September 14, 2015
Operation
General aviation
Engine
Cont TSIO550C
Part
Header
Part number
654327
Condition
Cracked
Location
Turbo
Stage of operation
IN
How discovered
9
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

(CAN) DURING INSPECTION, DISCOVERED TURBO HEADER CRACKED. CRACKED IN THE BODY IMMEDIATELY FWD OF THE BALANCE TUBE HOOKUP. UPON RECIEVING PART, 4 ADDITIONAL CRACKS WERE FOUND IMMEDIATELY ABOVE BRAZED PORTION IN THE BODY. THESE 4 CRACKS WERE IN THE CORNERS WHERE THE BODY ATTACHES TO THE FLANGE. THESE ARE COMMON IN THESE PARTS. CRACKS ARE BELIEVED TO FORM FROM THE INFLEXIBILITY OF THE BRAZED JOINTS. REVIEWERS SHOULD REFERENCE, SDR 20110114004 AND 20110114005 AS THEY ARE FAILURES OF THE SAME PART ON DIFFERENT MODEL ACFT.