Service difficulty report · Warning Message · Boeing 737890

Difficulty date
March 24, 2014
Submitted
March 26, 2014
Operation
Air carrier
Aircraft
N537AS
Make and model
Boeing 737890
Aircraft serial
35204
Aircraft time
8,540 hours, 2,500 cycles
Part
Warning Message
Condition
False Activation
Location
A/C Pack
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

RT PACK LIGHT ILLUMINATED ON RECALL. EXTINGHISHED ON RESET. ACFT GROUNDED. NR 2 PACK ZONE TEMP CONTROLLER, BIT LOGGED RAM AIR ACTUATOR FAULT. ACCOMPLISHED NO 2 PACK ZONE TEMP CONTROLLER BITE TEST IAW MM 21-61-00-700-806-002. NO FAULTS. ETOPS GROUND VERIFICATION TEST SUCCESSFUL IAW MM 21-51-21-400-801.