Service difficulty report · Dump Valve · Dhav DHC8301

Difficulty date
March 16, 2007
Submitted
May 1, 2007
Operation
General aviation
Make and model
Dhav DHC8301
Aircraft time
36,488 hours
Engine
Pwa PW123
Propeller
Hamstd 14SF15
Part
Dump Valve
Part number
263451
Part serial
0646
Condition
Leaking
Location
Flow Divider
Part time
4,065 hours
Stage of operation
CL
How discovered
O
Nature of condition
R, J
Precautionary procedure
E

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

What was found

(CAN) AFTER TAKEOFF DURING CLIMB, NR1 ENGINE LOST POWER AND TRQ ROLL BACK, CREW ELECTED TO SHUT ENGINE DOWN AND RETURN TO DEPARTURE AIRPORT. MAINTENANCE INSPECTION FOUND FUEL SUPPLY LINE TO FLOW DIVIDER/DUMP VALVE (B-NUT) NOT LOCKWIRED AND BACKED OFF, ALLOWING HIGH PRESSURE FUEL LEAK. O-RINGS REPLACED, FUEL LINE (B-NUT) TIGHTENED AND LOCKWIRED. ENGINE RUNS CARRIED OUT, AIRCRAFT RETURNED TO SERVICE. (TC NR 20070319004)