Service difficulty report · Warning Light · Boeing 737890

Difficulty date
June 22, 2017
Submitted
June 26, 2017
Operation
Air carrier
Aircraft
N536AS
Make and model
Boeing 737890
Aircraft serial
35203
Aircraft time
21,253 hours, 6,122 cycles
Part
Warning Light
Condition
False Activation
Location
Lt A/C Pack
Stage of operation
NR
How discovered
9
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

LEFT PACK LIGHT COMES ON WITH RECALL. ACFT GROUNDED. INITIAL INSPECTION FOUND THE NR 1 TEMP CONTROLLER SHOWING RAM AIR ACTUATOR FAILED RED LIGHT. CONTROLLER BITE TESTED IAW AMM 21-51-00-700-803, NO DEFECTS NOTED. RESET THE CONTROLLER AND RAN BITE TEST THREE MORE TIMES, NO DEFECTS NOTED. PRESSED RECALL AND NO PACK LIGHT ILLUMINATED. NO HISTORY LAST 30 DAYS. NO SYSTEM CONFIGURATION CHANGES REQUIRED.