Service difficulty report · Control Valve · Boeing 737890

Difficulty date
January 5, 2020
Submitted
January 8, 2020
Operation
Air carrier
Aircraft
N530AS
Make and model
Boeing 737890
Aircraft serial
36578
Aircraft time
38,047 hours, 11,185 cycles
Part
Control Valve
Part number
3989083
Part serial
9366
Condition
Malfunctioned
Location
Ac Bay
Part time
48,547 hours, 14,263 cycles
Stage of operation
NR
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

R PACK OUTPUTTING 50 DEG C + AIR COULD NOT GET IT TO COOL. GROUNDED - YES. CONFIG CHANGE REVERSED. REMOVED & REPLACED R/H PACK TCV LK & OPS NORMAL REF B737-800 AMM 21-51-10. ACCOMP PACK/ZONE TEMP CONT. BITE CK NO FAULTS FOUND REF AMM 21-61-00. ACFT RELEASED FROM MEL 21-33E C/N# 05067530 REMOVED.