Service difficulty report · Fuel Sys · Dhav DHC8103

Difficulty date
September 6, 2011
Submitted
January 23, 2013
Operation
Air carrier
Make and model
Dhav DHC8103
Engine
Pwc PW150A
Part
Fuel Sys
Condition
Malfunctioned
Stage of operation
TO
How discovered
O
Nature of condition
R
Precautionary procedure
C

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

What was found

(CAN) ON INITIAL POWER UP FOR T/O THE NR 2 ENGINE ONLY WENT TO 51 PERCENT TQ DESPITE BEING SET FOR AN 83 T/O POWER. THE CREW REJECTED TAKEOFF. THEY THEN DE-SELECTED REDUCED POWER TAKEOFF AND COMPLETED A STATIC RUN DURING WHICH THE ENGINE POWER WENT TO 85 PERCENT. THEY ATTEMPTED A SECOND T/O AND ONLY GOT 49 PERCENT TQ. ALL OTHER ENGINE PARAMETERS WERE NORMAL. THE EVENT MARKER WAS ACTIVATED AND INDICATED NR 2 ENGINE TQ HANGING AT 44 PERCENT WITH FUEL FLOW LOWER THAN NR 1 ENGINE BY 200PPH. THE PROBLEM WAS TRACED BACK TO A FAULTY FLOW DIVIDER WHICH WAS REPLACED BEFORE THE ACFT WAS RETUNED TO SERVICE. THE FAULTY DIVIDER WILL BE SENT TO FOR INVESTIGATION.