Service difficulty report · Sleeve · Cessna 172N

Difficulty date
February 23, 2012
Submitted
April 19, 2012
Operation
General aviation
Aircraft
N95155
Make and model
Cessna 172N
Aircraft serial
17270682
Engine
Lyc O320*
Part
Sleeve
Part number
AN8196D
Condition
Mismanufactured
Location
Fuel Line
Part time
9,960 hours
Component
Fuel Line
Component part number
05160162
Stage of operation
IN
How discovered
V
Nature of condition
K
Precautionary procedure
K

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

What was found

FUEL LEAK OCCURED AT RIGHT AFT FUEL TANK OUTLET FITTING FUEL LINE FLARED FITTING JOINT. FUEL LINE WAS MANUFACTURED WITH A DEFECTIVE SLEEVE WITH A SHOULDER OF .045" AS OPPOSED TO THE STANDARD DIMMENSION OF .170. FOUND BACK OF FLARE CUT INTO AND NO LONGER ABLE TO CREATE A SEAL ON FLARE FACE BECAUSE THE AN818-6D NUT BOTTOMED OUT ON THE FUEL TANK OUTLET NIPPLE FITTING.

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