Service difficulty report · Warning Message · Boeing 737990ER

Difficulty date
November 21, 2017
Submitted
November 30, 2017
Operation
Air carrier
Aircraft
N428AS
Make and model
Boeing 737990ER
Aircraft serial
36353
Aircraft time
6,895 hours, 2,299 cycles
Part
Warning Message
Condition
False Activation
Location
Cabin Temp
Stage of operation
NR
How discovered
O
Nature of condition
N
Precautionary procedure
O

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

ZONE TEMP CONTROL CABINE ILLUMINATED ON RECALL. ACFT GROUNDED. ACCOMPLISHED PACK ZONE TEMP BITE IAW AMM 21-61-00-740-801-002. NO FAULTS. RAN PACKS AND CHANGED TEMPS TO ALL 3 ZONES FOR AN EXTENDED PERIOD OF TIME. SHUTDOWN AND NO FAULTS ON RECALL, RAN THE PACK ZONE TEMP CONTROL GROUND TEST. NO FAULTS, GROUND VERIFICATION GOOD IAW AMM 21-61-00-740-801-002.