Service difficulty report · Baffle · Cessna 172H

Difficulty date
March 14, 2003
Submitted
March 14, 2003
Operation
General aviation
Aircraft
N4977R
Make and model
Cessna 172H
Aircraft serial
17256331
Aircraft time
12,028 hours
Part
Baffle
Condition
Broken
Location
Fuel Tank
Part time
12,028 hours
Stage of operation
IN
How discovered
V
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

DURING VISUAL INSPECTION, FOUND FUEL TANK BAFFLE SPOT WELDS BROKEN LOOSE, ALLOWING BAFFLE TO MOVE AROUND FREELY INSIDE FUEL TANK. CONDITION COULD CAUSE FUEL STARVATION DURING DECENT WITH A LOW FUEL QUANTITY, COULD CAUSE ERRONEOUS FUEL QUANTITY INDICATIONS DUE TO INTERFERENCE WITH TRANSMITTER FLOAT. THE FRONT FACE OF BAFFLE IS APPROX 1 INCH BEHIND FUEL TANK FILLER PORT. DURING REFUELING PROCESS, IF FUEL NOZZLE IS RELAXED, NOZZLE CONTACTS BAFFLE AND APPLIES EXCESSIVE PRESSURE TO BAFFLE EVENTUALLY BREAKING SPOT WELDS LOOSE. DURING THE REFUEL PROCESS, DO NOT INSERT FUEL NOZZLE MORE THAN 3 INCHES INTO THE FUEL TANK.

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