OpenAirDocs.org

SDR CA960415007

Open the Markdown

Service difficulty report · Power Levers · Dhav DHC8102

FAA SDR system

Difficulty date
April 10, 1996
Submitted
March 26, 2000
Operation
Air carrier
Make and model
Dhav DHC8102
Engine
Pwa PW120A
System (JASC)
7603 · Power Lever
Part
Power Levers
Condition
Overspeed
Location
Both Eng
Stage of operation
DE
Nature of condition
Y
Precautionary procedure
O, L, E

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

What was found

(CAN)ON APPROACH IN SEVERE TURBULENCE, THE PILOT ATTEMPTED TO REDUCE POWER TO IDLE. BOTH PROPS WENT INTO AN OVERSPEED CONDITION IN EXCESS OF 1500 RPM. ZERO TORQUE INDICATION. POWER TO #1 ENGINE RECOVERED B UT #2 FAILED AND WAS SHUTDOWN. IT IS BELIEVED THAT TURBULENCE CAUSED THE PILOT TO PULL BOTH POWER LEVERS INTO THE INCORRECT RANGE CAUSING THE OVERSPEED. BOTH ENGINES AND PROPS WERE REPLACED.