Service difficulty report · Controller · Cessna 550

Difficulty date
November 8, 2001
Submitted
November 16, 2001
Operation
General aviation
Aircraft
N5314J
Make and model
Cessna 550
Aircraft serial
5500663
Engine
Pwa JT15D4
Part
Controller
Part number
13035616
Part serial
126982
Condition
Misrepaired
Location
Cabin Pressure
Part time
3,685 hours
Stage of operation
IN
How discovered
C
Nature of condition
W
Precautionary procedure
K

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

What was found

UPON INSTALLATION OF A REPAIRED CABIN PRESSURE RATE CONTROLLER IT WAS FOUND THAT THE AC WOULD NOT TEST OR PRESSURIZE ON THE GROUND. AFTER CHECKING THE ATTACHING SYSTEMS THE CANNON PLUG ON THE CONTROLLER WAS DISCONNECTED AND INSPECTED. AT INSPECTION IT WAS FOUND THAT THE CANNON PLUG PINS WERE PUSHED BACK FAR ENOUGH AND ALSO BENT SO AS NO CONNECTION COULD BE MADE. IT WAS ALSO NOTED THAT ON THE INSIDE OF THE CANNON PLUG THE INSULATION ON THE WIRES HAD NOT BEEN STRIPPED BACK. THE WIRES WERE JUST CRIMPED TO THE PINS AND PUT IN TO THE CANON PLUG.

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