Service difficulty report · Valve · Boeing 737890

Difficulty date
January 26, 2013
Submitted
January 29, 2013
Operation
Air carrier
Aircraft
N584AS
Make and model
Boeing 737890
Aircraft serial
35682
Aircraft time
20,943 hours, 6,344 cycles
Part
Valve
Part number
32144464
Part serial
10356
Condition
Inoperative
Location
Bleed System
Part time
20,946 hours, 6,345 cycles
Stage of operation
DE
How discovered
O
Nature of condition
J
Precautionary procedure
O

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

What was found

BLEED TRIP OFF ILLUMINATED ON LT SIDE AS THROTTLES BROUGHT BACK TO IDLE TOP OF DESCENT. ACCOMPLISHED FIM 36-10, TASK 801 & ENG BLEED AIR SYS HEALTH CHECK. FOUND HIGH STAGE VALVE & PRECOOLER CONTROL VALVE FAULTS. R & R HIGH STAGE VALVE REF MM 36-11-06 & PRE COOLER CONTROL VALVE REF MM 36-12-02. GROUND VERIFICATION SUCCESSFUL.