Service difficulty report · Control Valve · Boeing 737890

Difficulty date
January 1, 2014
Submitted
January 6, 2014
Operation
Air carrier
Aircraft
N565AS
Make and model
Boeing 737890
Aircraft serial
35181
Aircraft time
27,298 hours, 8,328 cycles
Part
Control Valve
Part number
3989083
Part serial
16540
Condition
Failed
Location
Lt A/C Pack
Part time
6,299 hours, 1,796 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

LT PACK LIGHT ILLUMINATES ON M.C. EXTINGUISHES ON RESET. ACFT GROUNDED. REPLACED THE LEFT PACK TEMP CONTROL VALVE REF TO AMM 21-51-10. OPS AND LEAK CHECK GOOD.