Service difficulty report · Bypass Valve · Cessna 560CESSNA

Difficulty date
February 4, 2006
Submitted
June 6, 2006
Operation
General aviation
Make and model
Cessna 560CESSNA
Aircraft time
1,142 hours
Engine
Pwa PW535A
Part
Bypass Valve
Part number
7547512
Condition
Failed
Location
Acm
Part time
1,189 hours
Component
Acm · Hamstd · 73838426
Stage of operation
CR
How discovered
O
Nature of condition
M, P
Precautionary procedure
O

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

What was found

BYPASS VALVE INTERMITTENTLY STICKING IN OPEN (HOT) POSITION, UNABLE TO CONTROL CABIN AIR TEMPERATURE IN AUTO OR MANUAL SELECTION. REPLACED VALVE, GROUND CHECK OF VALVE OPERATION SATISFACTORY.