Service difficulty report · Shutoff Valve · Boeing 737824

Difficulty date
September 19, 2011
Submitted
September 21, 2011
Operation
Air carrier
Aircraft
N76505
Make and model
Boeing 737824
Aircraft serial
32834
Aircraft time
16,878 hours, 5,861 cycles
Part
Shutoff Valve
Part number
32145526
Part serial
5292
Condition
Malfunctioned
Location
Bleed Air Sys
Part time
38,566 hours, 12,768 cycles
Stage of operation
CR
How discovered
O
Nature of condition
O
Precautionary procedure
A

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

What was found

RIGHT BLEED TRIP FOLLOWED QRH. SEVERAL ATTEMPS STILL FAILED T/S REF FIM 36-10-00-810-801. CHKD ALL SENSE LINES, CHKD OK. REMOVED & REPLACED PRECOOLER VLV 390 SENSOR. REF MM 36-12-03-000-801 NEEDS ENGINE RUN JW7705 R&R PRECOOLER VLV & KISS SEAL IN REF TO AMM 36-12-02-000-801 AND 36-11-04-400-801 PER TECH SUPPORT.ED07 238 (PRECAUTIONARY) ENG RUN COVERED ON L/P 8910871 TJ 4455 - REMOVED AND REPLACED PSROV VALVE. DID ENGINE RUN TEST PER AMM 36-10-00-810-803. RAN ENGINE TO 80 DUCT PRESSURE WENT NO HIGHER THAN 50 PSI.