Service difficulty report · Vent Line · Piper PA31350

Difficulty date
January 17, 2005
Submitted
March 3, 2005
Operation
General aviation
Make and model
Piper PA31350
Aircraft serial
317552099
Aircraft time
19,828 hours
Engine
Lyc TIO540J2BD
Propeller
Hartzl HCE3YR2A
Part
Vent Line
Part number
461713
Condition
Leaking
Location
Fuel Cell
Part time
20,174 hours
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

(CAN) DURING INSPECTION, FUEL WAS NOTICED LEAKING FROM THE LT WING. THERE WAS A FUEL STAIN AROUND THE VENT TUBE. WHEN THE TUBE WAS MOVED IT BROKE OFF AT THE TANK END OF THE TUBE. BOTH IB AND OB TANKS WERE REMOVED FOR INSPECTION. THEY BOTH SHOWED SIGNS OF DETERIORATION OF THE FUEL TANK MATERIAL. IT WAS STILL HOWEVER, PLIABLE AND NOT SHOWING ANY LEAKING ELSEWHERE. THE MFG 2 YEAR INSPECTION OF THE FUEL CELLS WAS CARRIED OUT IN AUGUST OF 2003 WITH NO FAULTS FOUND. THE TANKS WERE SHOWING A BUILD DATE OF 1974.

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