Service difficulty report · Float · Amrgen AA5B

Difficulty date
November 20, 2006
Submitted
December 4, 2006
Operation
General aviation
Aircraft
N45343
Make and model
Amrgen AA5B
Aircraft serial
AA5B1265
Engine
Lyc O360*
Part
Float
Condition
Damaged
Location
Carburetor
Part time
400 hours
Component
Carburetor · Facet
Component part number
106019MODHA6
Stage of operation
NR
How discovered
9
Nature of condition
O
Precautionary procedure
O

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

What was found

ENGINE IDLE AND LOW POWER PERFORMANCE WAS ERRATIC. UPON ENGINE SHUTDOWN FUEL WAS NOTED DRIPPING FROM CARB/INDUCTION AIRBOX. CARB WAS DISASSEMBLED AND INSPECTED. FOUND PLASTIC TO HAVE PARTIALLY BECOME UNBONDED FROM LOWER SECTION ALLOWING FUEL TO BEGIN LEAKING INTO ASSEMBLY. AS THE FLOAT LOST ITS BOUYANCY IT COULD NO LONGER RESTRICT FUEL SOURCE. POOR RUNNING ENGINE AND A FIRE HAZZARD WERE THE RESULTS. RECOMMEND THE MFG PROCESS (BONDING) OF THE FLOAT BE IMPROVED. IN THE MEANTIME, ALL FLOATS MFG IN THE SAME BATCH SHOULD BE REMOVED FROM SERVICE. (K)