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SDR ASAA2016081717736

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Service difficulty report · Control Valve · Boeing 737890

FAA SDR system

Difficulty date
August 17, 2016
Submitted
August 22, 2016
Operation
Air carrier
Aircraft
N559AS
Make and model
Boeing 737890
Aircraft serial
35178
Aircraft time
36,651 hours, 10,913 cycles
System (JASC)
2150 · Cabin Cooling System
Part
Control Valve
Part number
3989083
Part serial
5334
Condition
Failed
Location
Ac Bay
Part time
39,580 hours, 22,678 cycles
Stage of operation
DE
How discovered
O
Nature of condition
J
Precautionary procedure
K

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

What was found

RIGHT PACK LIGHT ILLUMINATED ON DESCENT, RESET IAW QRH, LIGHT EXTINGUISHED WHEN MASTER CAUTION RESET. ACFT GROUNDED. NR 2 ZONE TEMP CONTROLLER SHOWS THIS PACK ACTIVE FAULT, REF FIM 21-62. R & R RT PACK TEMPERATURE CONTROL VALVE IAW AMM 21-51-10-400-801. LEAK CHECK GOOD, ZONE BITE CHECK, NO FAULT NOTED.