Service difficulty report · Control Valve · Boeing 737890

Difficulty date
February 6, 2014
Submitted
February 11, 2014
Operation
Air carrier
Aircraft
N579AS
Make and model
Boeing 737890
Aircraft serial
35187
Aircraft time
26,679 hours, 7,927 cycles
Part
Control Valve
Part number
3989083
Part serial
11623
Condition
Warning Light
Location
Lt A/C Pack
Part time
17,957 hours, 5,435 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

DURING PUSH BACK, ON RECALL LT PACK LIGHT ILLUMINATED, EXTINGUISHED ON MASTER CAUTION RESET. ACFT GROUNDED. BITE CHECK FAULTED TCV ON LT PACK. R & R TCV IAW AMM 21-51-10. OPS CHECKED GOOD, NO LEAKS NOTED.