Service difficulty report · Controller · Boeing 737990ER

Difficulty date
October 13, 2021
Submitted
October 18, 2021
Operation
Air carrier
Aircraft
N402AS
Make and model
Boeing 737990ER
Aircraft serial
41189
Aircraft time
33,154 hours, 10,676 cycles
Part
Controller
Part number
3989083
Part serial
7670
Condition
Faulty
Location
Right Ecs Bay
Part time
63,128 hours, 19,160 cycles
Stage of operation
NR
How discovered
V
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

RIGHT PACK LIGHT ILLUMINATED DOES NOT EXTINGUISH ON MASTER CAUTION RESET. GROUNDED - YES. REMOVED AND REPLACED RH AFT TEMP CONTROL VALVE REF AMM 21-51-10 OPS AN DLEAK CHECK GOOD. THIS CLEARS MEL 21-33E AND 21-1G. MX PROCEDURES REVERSED SEAMC ANDY NOTIFIED. REF LP 60252994 FOR ROTABLE INFO.