Service difficulty report · Bypass Valve · Bombdr DHC8402

Difficulty date
June 4, 2014
Submitted
June 6, 2014
Operation
Air carrier
Aircraft
N195WQ
Make and model
Bombdr DHC8402
Aircraft serial
4195
Aircraft time
10,954 hours, 10,851 cycles
Engine
Pwc PW150A
Part
Bypass Valve
Condition
Failed
Location
Engine Oil
Part time
10,781 hours, 10,609 cycles
Stage of operation
CL
How discovered
O
Nature of condition
M, J
Precautionary procedure
A

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

What was found

FLYING AT 10,000 FT CREW REPORTED NR 2 OIL TEMP WAS 107. CREW RAN QRH, REDUCED TORQUE AND OIL TEMP ROSE TO 119 WHERE IT REMAINED FOR 10 MINUTES. BECAUSE TEMP WAS HIGH FOR 10 MINUTES, CREW SHUTDOWN ENGINE, RETURNED TO DEPARTURE AND DECLARED AN EMERGENCY. CREW LANDED WITHOUT INCIDENT AND ACFT WAS TOWED TO GATE. MAINTENANCE INSPECTED, FOLLOWED THE FIM AND R & R THE ACOC THERMAL BYPASS VALVE IAW AMM. ACFT IS GOOD FOR SERVICE.