Service difficulty report · Control Valve · Boeing 737890

Difficulty date
April 16, 2013
Submitted
April 18, 2013
Operation
Air carrier
Aircraft
N560AS
Make and model
Boeing 737890
Aircraft serial
35179
Aircraft time
25,723 hours, 7,890 cycles
Part
Control Valve
Part number
3989083
Part serial
8891
Condition
Failed
Location
Lt Ac Pack
Part time
25,745 hours, 7,897 cycles
Stage of operation
TX
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

LEFT PACK LIGHT CAME ON, RESET DURING RECALL. REPLACED THE LT PACK TEMP CONTROL VALVE IAW AMM 21-51-10. OPS CHECK GOOD. BITE CHECK PASS. MEL 23-32B CN 0416009 REMOVED. SEAM C, VARIFIED PART EFFECTIVITY AND NOTIFIED OF MEL REMOVAL.