Service difficulty report · Warning Light · Boeing 737890

Difficulty date
August 3, 2013
Submitted
August 6, 2013
Operation
Air carrier
Aircraft
N564AS
Make and model
Boeing 737890
Aircraft serial
35103
Aircraft time
25,993 hours, 8,066 cycles
Part
Warning Light
Condition
False Activation
Location
Lt A/C Pack
Stage of operation
TX
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

LEFT PACK ON RECALL ILLUMINATES. ACFT GROUNDED. BITE OF PZTC NR 1 SHOWS RAM AIR ACTUATOR FAULT. RAN BITE TEST OF NR 1 PZTC & VERIFIED SMOOTH OPERATION OF RAM AIR ACTUATOR 5 TIMES. FAULT NEVER DUPLICATED REF MM 21-61, TASK 801. GROUND VERIFICATION OF LT RAM AIR ACTUATOR ACCOMPLISHED. NO HISTORY 90 DAYS.