Service difficulty report · Tube · Cessna 550

Difficulty date
February 6, 2004
Submitted
February 6, 2004
Operation
General aviation
Aircraft
N792MA
Make and model
Cessna 550
Aircraft serial
5500302
Aircraft time
11,000 hours, 9,300 cycles
Part
Tube
Part number
652635537
Condition
Chafed
Location
Fuel System
Part time
11,000 hours, 9,300 cycles
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

COMPLETING CESSNA SB, WE FOUND BOOST PUMP WIRING CHAFING INTO FUEL TUBE. THE TUBE WAS CHAFED BEYOND LIMITS IAW SB. THERE IS POTENTIAL OF SPARKING IN THE FUEL BAY AREA IF THE BOOST PUMP WIRES SHORTED TO THE TUBE CAUSING A FIRE. THE BOOST PUMP WIRING HAD SOME CHAFFING ON OUTSIDE SHIELDING BUT WAS IN LIMITS IAW SB. THIS SB SHOULD BECOME AN AD TO PREVENT ANY CHAFFING OF BOOST PUMP WIRES IN THE FUEL BAY AREA.

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