SDR DXTA200601632

Service difficulty report · Flapper Valve · Cessna 750

Difficulty date: October 5, 2006
Submitted: October 9, 2006
Operation: Air carrier
Aircraft: N990QS
Make and model: Cessna 750
Aircraft serial: 7500190
Aircraft time: 4,715 hours, 2,798 cycles
System (JASC): 2820 · Aircraft Fuel Distribution System
Part: Flapper Valve
Part number: 99144751
Condition: Inoperative
Location: Fuel Tank
Part time: 4,715 hours, 2,798 cycles
Stage of operation: CR
How discovered: O
Nature of condition: K, J
Precautionary procedure: A

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

What was found

AT FL260 LEVEL FLIGHT-3000 LBS PER WING 0 FUEL IN CENTER TANK, WING TANK O'FULL L CAS AND SAW FUEL VENTING OVERBOARD, TURNED OFF LEFT CENTER TO WING XFER-LOST 300 LBS OF FUEL THEN IT STOPPED, DID IT AGAIN 5 MINS LATER AND LOST ANOTHER 100 LBS. REMOVED AND REPLACED LT WING SURGE TANK FLAPPER VALVE IAW 750 MM CHAPTER.

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