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SDR ASAA11510389

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Service difficulty report · Valve · Boeing 737890

FAA SDR system

Difficulty date
September 15, 2011
Submitted
September 21, 2011
Operation
Air carrier
Aircraft
N564AS
Make and model
Boeing 737890
Aircraft serial
35103
Aircraft time
18,689 hours, 5,895 cycles
System (JASC)
3610 · Pneumatic Distribution System
Part
Valve
Part number
32895626
Part serial
5153
Condition
Failed
Location
Bleed Air Sys
Part time
40,144 hours, 19,934 cycles
Stage of operation
CL
How discovered
O
Nature of condition
O
Precautionary procedure
K

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

What was found

DURING CLIMBOUT NOTICED A DUCT PRESSURE SPLIT LEFT READ 29 PSI RIGHT READ 44PSI AFTER LEVEL OFF NEEDLES PAIRED AT 34 PSI. FOUND PRE COOLER VALVE NEED REPLACEMENT REPLACED PER AMM 36 12 01. COMP ENG NR 1 BLEED AIR SYS HEALTH CK PER AMM 36 11 00 700 801. FOUND NR 1 ENG BAR AND PRSOV BAD. REMOVED AND REPLACED BAR PER AMM 36 11 03 REMOVED AND REPLACED PRSOV PER AMM 36 11 04 400 801 COMP REPAIR CONF PER FIM TASK 36 10 00 810 807 AND OPS CHECK GOOD PER AMM 36 00 00 860 804.