Service difficulty report · Actuator · Boeing 737990ER

Difficulty date
August 16, 2020
Submitted
August 18, 2020
Operation
Air carrier
Aircraft
N440AS
Make and model
Boeing 737990ER
Aircraft serial
41705
Aircraft time
26,305 hours, 8,458 cycles
Part
Actuator
Part number
676000141
Part serial
6760001411697
Condition
Inoperative
Location
Lt Ram Air Inlet
Part time
5,256 hours, 1,511 cycles
Stage of operation
NR
How discovered
V
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

LEFT PACK ILLUMINATED ON RECALL, LIGHT EXTINGUISHES WHEN MASTER CAUTION RESET. GROUNDED - YES. REMOVED AND REPLACED BOTH LT RAM AIR ACTUATORS, REF B737-900 AMM 21-51-21 AND 21-51-27. OPS CHECK GOOD AND BITE TEST GOOD, NO FAULTS AT THIS TIME.