Service difficulty report · Oil System · Dhav DHC8301

Difficulty date
July 14, 2014
Submitted
March 12, 2015
Operation
General aviation
Make and model
Dhav DHC8301
Aircraft time
55,713 hours
Engine
Pwa PW123
Part
Oil System
Condition
Low Pressure
Location
Engine
Part time
48,149 hours
Stage of operation
CR
How discovered
O
Nature of condition
J
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) NO2 IFSD , OIL PX INDICATED 15 - 20 PSI ON POST TAKEOFF CHECKS , APPROX 17PSI , QRH STATES TO SHUT DOWN , ENG WAS NOT SURGING AND THER WAS NO OIL PRESSURE WARNING , MTC ADVISE THAT AT GATE THE AFT ENGINE AREA IS OILY AND THAT THE MAIN OIL TANK CHIP DETECTOR AND OIL FILTER BYPASS ARE FLAGGED ON THE ENGINE CONDITION PANEL. DURING BOROSCOPE OIL WAS OBSERVED IN THE TURBINE BLADE SHROUDS CARRIED OUT WIRING CHECK OF LOW OIL PRESSURE WARNING LIGHT BY JUMPERING PINS 6 AND 4 OF CONNECTOR 7933-P1. WARNING LIGHT CAME ON, WIRES SHAKEN LIGHT HELD STEADY. NR 2 ENGINE REPLACED IAW TASK DH3-71-00-00-RR-801LM. GROUND CHECKED SERVICEABLE.