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SDR ASAA2015050211608

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Service difficulty report · Valve · Boeing 737990ER

FAA SDR system

Difficulty date
May 2, 2015
Submitted
May 5, 2015
Operation
Air carrier
Aircraft
N408AS
Make and model
Boeing 737990ER
Aircraft serial
41732
Aircraft time
9,427 hours, 3,023 cycles
System (JASC)
3610 · Pneumatic Distribution System
Part
Valve
Part number
32144464
Part serial
14578
Condition
Failed
Location
Nr 2 Engine
Part time
9,427 hours, 3,023 cycles
Stage of operation
CL
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

DURING CLIMBOUT, LT DUCT PRESSURE READ 41, RT DUCT PRESSURE 22, AT TOP OF CLIMB AND POWER IN CRUISE SETTING RT PACK 21, LT PACK 44, 2 HOURS INTO FLIGHT RT 40, LT PACK 42. ACFT GROUNDED. TASK CARD COMPLIED WITH. REPLACED NR 2 ENGINE PRECOOLER CONTROL VALVE REF AMM 36-12-04/401. REPLACED NR 2 ENGINE HIGH STAGE VALVE REF AMM 36-11-06/401. OPS CHECK GOOD, LEAK CHECK GOOD.