Service difficulty report · Actuator · Boeing 737890

Difficulty date
January 27, 2013
Submitted
January 29, 2013
Operation
Air carrier
Aircraft
N585AS
Make and model
Boeing 737890
Aircraft serial
35683
Aircraft time
20,857 hours, 6,358 cycles
Part
Actuator
Part number
5416744
Part serial
12250
Condition
Malfunctioned
Location
A/C Pack
Part time
20,858 hours, 6,359 cycles
Stage of operation
AP
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

UPON EXECUTING LANDING CHECKLIST, LT PACK LIGHT ILLUMINATED. RESETS WITH MASTER CAUTION RESET. BITE CHECK ON NR 1 CONTROLLER SHOWS LT PACK RAM AIR ACTUATOR FAULT. REACCOMPLISHED BITE STILL FAULTS LT RAM AIR ACT. ACTUATOR WAS VERY HOT AND STUCK. R & R LT RAM AIR ACTUATOR OPS/BITE CHECK GOOD REF MM 21-51-21.