Service difficulty report · Control Valve · Boeing 737890

Difficulty date
November 2, 2015
Submitted
November 4, 2015
Operation
Air carrier
Aircraft
N516AS
Make and model
Boeing 737890
Aircraft serial
39044
Aircraft time
26,215 hours, 8,109 cycles
Part
Control Valve
Part number
3989084
Part serial
8951
Condition
Failed
Location
Lt A/C Pack
Part time
32,113 hours, 9,888 cycles
Stage of operation
NR
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 ILLUMINATED ON RECALL. EXTINGUISHES WITH MASTER CAUTION. ACFT GROUNDED. PERFORMED BITE TASK 21-62-801. NR 1 TEMP CONTROLLER FAULTED TCV. R & R TCV REF MM 21-51-10. OPS CK/ LEAK CK GOOD. PACK LIGHT DOES NOT ILLUMINATE ON RECALL.