Service difficulty report · Pressure Switch · Boeing 7372S2C

Difficulty date
February 25, 2016
Submitted
April 22, 2016
Operation
General aviation
Make and model
Boeing 7372S2C
Aircraft time
32,892 hours
Engine
Pwa JT8D17
Part
Pressure Switch
Part number
1G309
Condition
Shorted
Location
Start Valve
Stage of operation
CR
How discovered
O
Nature of condition
N
Precautionary procedure
E, A

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

What was found

(CAN) IN CRUISE, NR 1 ENGINE, START VALVE OPEN, CAUTION LIGHT ILLUMINATE. CREW FOLLOW QRH PROCEDURE AND SHUTDOWN THE AFFECTED ENGINE. CREW DECLARED AN EMERGENCY AND LANDED SAFELY. MAINTENANCE FOUND THAT IT WAS ONLY AN INDICATION PROBLEM. THE STARTER VALVE PRESSURE SWITCH WAS INTERNALY SHORTED. PRESSURE SWITCH HAVE BEEN REPLACED AND ACFT HAVE BEEN RETURN TO SERVICE.

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