Service difficulty report · Shutoff Valve · Bombdr DHC8402

Difficulty date
May 7, 2021
Submitted
May 7, 2021
Operation
Air carrier
Aircraft
N447QX
Make and model
Bombdr DHC8402
Aircraft serial
4364
Aircraft time
22,306 hours, 24,088 cycles
Part
Shutoff Valve
Part number
8209713
Part serial
9807030
Condition
Malfunctioned
Location
Nr 1 Engine
Part time
31,403 hours
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

ON TAKEOFF ROLL #1 BLEED HOT CAUTION AND #2 BLEED HOT CAUTION ILLUMINATED. AIRCRAFT DIVERTED LANDING UNEVENTFUL. REMOVED FROM SERVICE. CDS FAULTS ARE PRESENT FLT L CHANNEL 1007-L NAPRSOV, 1006-L NAPRSOV, 3003 PACK FCV. PRESENT FAULTS R CHANNEL 1203-R P2.2 SOV, 3003 PACK FCV, 1901-R PRCLR TEMP SWITCH. CLEARED FAULTS. GRD RAN APU AND OPERATED PACKS, CHECKED FOR OBVIOUS LEAKS IN PACK AREA, NONE NOTED. FAULT CODES DID NOT RETURN. 3600 5-6-21. REF: W/O 299663, N/R-00001 FOR WORK PERFORMED. R&R OF #1 NACELLE SHUTOFF VALVE. OPS TEST GOOD, NO FAULTS FOUND. RETURNED TO SERVICE.