Service difficulty report · Riser · Piper PA44180

Difficulty date
March 14, 2011
Submitted
September 14, 2015
Operation
General aviation
Make and model
Piper PA44180
Aircraft time
11,281 hours
Engine
Lyc LO360E1A6
Propeller
Hartzl HCC2YR2
Part
Riser
Part number
71712
Condition
Cracked
Location
Nr 1cyl Intake
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 ROUTINE INSPECTION, BOTH ENGINES CYLINDER NR 1 INTAKE RISER WERE FOUND CRACKED. THERE WAS NO REPORT OF ANY ENGINE MALFUNCTION OR SNAG RELATED TO THE CRACK RISERS. AFTER DISASSEMBLY WE FOUND A SMALL CRACK ON THE FLANGE SECTION ALLOWING A VERY SMALL AMOUNT OF FUEL LEAKING, IT WAS FOUND DUE TO THE BLUE DYE ON THE PIPE FROM THE 100LL.

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