Service difficulty report · Actuator · Boeing 737890

Difficulty date
July 30, 2014
Submitted
August 5, 2014
Operation
Air carrier
Aircraft
N577AS
Make and model
Boeing 737890
Aircraft serial
35186
Aircraft time
28,159 hours, 8,438 cycles
Part
Actuator
Part number
5416744
Part serial
9083
Condition
Malfunctioned
Location
Ram Air
Part time
41,983 hours, 16,544 cycles
Stage of operation
NR
How discovered
O
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

RT PACK LIGHT ILLUMINATED ON RECALL. ACFT GROUNDED. NR 2 PACK/ ZONE TEMP CONTROLLER BITE TEST REF AMM TASK 21-61-00 SHOWS NUMEROUS RAM AIR ACT FAULTS. R & R RT PACK RAM AIR ACTUATOR AS PRECAUTIONARY REF AMM 21-51-21. ACCOMPLISHED FIM 21-62 TASK 836 & AMM 21-51-00 RT PACK RAM AIR ACTUATOR FAULT ISOLATION AND PACK/ZONE TEMP CONTROLLER BITE TEST NORMAL.