SDR CA020308013

Service difficulty report · Engine · Dhav DHC8102

Difficulty date: February 28, 2002
Submitted: March 21, 2002
Operation: General aviation
Make and model: Dhav DHC8102
Aircraft time: 8,747 hours
Engine: Pwa PW120A
Propeller: Hamstd 14SF7
System (JASC): 7931 · Engine Oil Pressure
Part: Engine
Condition: Failed
Location: Left
Stage of operation: TO
How discovered: O
Nature of condition: J
Precautionary procedure: C

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

What was found

(CAN) START OF THE DAY. NR 1 OIL PRESSURE WOULD GO TO 70PSI. THEN SPIKED TO 90PSI. ALL GROUND TEST SYSTEM NORMAL. ON TAKEOFF ROLL AT V1 NR 1 ENGINE OIL PRESSURE LIGHT CAME ON INTERMITTENTLY AS OIL DROPPED TO 40PSI AT LEAST 3 TIMES OIL PRESSURE THEN RESUMED NORMAL OPERATION. AIRCRAFT FLOWN BACK TO OTTAWA, THE OIL FILTERS, AND SCAVENGE FILTER CHECKED NO METAL FOUND. TALKING WITH ENGINE MANUFACTURER THEY ADVISE TO REPLACE THE PRESSURE REGULATING VALVE.