Service difficulty report · Shutoff Valve · Bombdr DHC8402

Difficulty date
September 18, 2009
Submitted
September 22, 2009
Operation
Air carrier
Aircraft
N427QX
Make and model
Bombdr DHC8402
Aircraft serial
4156
Aircraft time
6,205 hours, 6,673 cycles
Engine
Pwc PW150A
Part
Shutoff Valve
Part number
8209713
Part serial
200109319
Condition
Malfunctioned
Location
Nr 2 Engine
Part time
693 hours, 801 cycles
Stage of operation
CL
How discovered
O
Nature of condition
J
Precautionary procedure
A

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

What was found

PDX- CLIMBING THROUGH 22,000 FT, NOTICED NR 2 FUEL FLOW ABOUT 200 PPH HIGHER THAN NR 1, NR 2 ITT CLIMBED TO 827 DEG C. SHORTLY AFTER NR 2 BLEED HOT CAUTION ILLUMINATED. RETURNED TO FIELD & LANDING UNEVENTFUL. NO PRESENT EMU OR ECS FAULTS IN CDS. REPLACED NR 2 HP BLEED VALVE & 2.7 INTERCOMPRESSOR BLEED VALVE. OPERATION TEST OF BLEED AIR SYSTEM, BLEED AIR SYSTEM OPERATIONAL TEST GOOD. NR 2 ENGINE POWER ASSURANCE CHECKS GOOD BOTH CAPPED AND UNCAPPED. GROUND RAN NR 1 & 2 ENGINES AT HIGH POWER FOR 5 MIN WITH BLEEDS ON AND FLOW NORMAL. NO CAUTION LIGHTS ILLUMINATED AND ALL ENGINE INDICATIONS NROMAL DURING RUN. NO EMU OR ECS FRESENT FAULTS FOUND IN CDS AFTER RUN. RETURNED TO SERVICE.