Service difficulty report · Isolation Valve · Cessna 750

Difficulty date
March 2, 2005
Submitted
March 3, 2005
Operation
Air carrier
Aircraft
N920QS
Make and model
Cessna 750
Aircraft serial
7500120
Aircraft time
4,576 hours, 2,823 cycles
Engine
Allsn AE3007C
Engine time
4,384 hours, 2,736 cycles
Part
Isolation Valve
Condition
Open
Location
A/C Pack
Stage of operation
TX
How discovered
O
Nature of condition
B
Precautionary procedure
O

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

What was found

AFTER STARTING THE LEFT ENGINE, ON FIRST START OF THE DAY, A STRONG ODOR OF RAW FUEL COMES INTO THE COCKPIT. PACK ISOLATION VALVE WAS OPEN. AIR COMING FROM WEMAC SMELLED CLEAN.

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