Service difficulty report · Valve · Boeing 7377H4

Difficulty date
April 9, 2013
Submitted
April 11, 2013
Operation
Air carrier
Aircraft
N403WN
Make and model
Boeing 7377H4
Aircraft serial
29818
Aircraft time
43,527 hours, 25,224 cycles
Part
Valve
Part number
32144464
Part serial
2999
Condition
Faulty
Location
Bleed Air Sys
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

DIVERSION/DECLARED EMERGENCY - NR 1 BLEED TRIP OFF ILLUMINATED NEAR TOP OF CLIMB AND WOULD NOT STAY RESET. SHORTLY AFTERWARD, RIGHT / PACK TRIP OFF LIGHT ILLUMINATED AND WE STARTED AN EMERGENCY DESCENT. DURING THE DESCENT, RESET PARK AROUND FL 360. BLEED TRIP ALSO RESET AT THAT TIME. PACK TRIPPED AT FL 400. REMOVED AND REPLACED NR 1 ENGINE HIGH STAGE VALVE AND PRSOV HARNESS PER MM.

More about the Boeing 737-7H4