Service difficulty report · Actuator · Boeing 737990ER

Difficulty date
February 11, 2022
Submitted
February 23, 2022
Operation
Air carrier
Aircraft
N487AS
Make and model
Boeing 737990ER
Aircraft serial
44108
Aircraft time
23,242 hours, 7,208 cycles
Part
Actuator
Part number
676000141
Part serial
676000144646
Condition
Inoperative
Location
R Ramair Exh Duc
Part time
23,364 hours, 7,252 cycles
Stage of operation
IN
How discovered
O
Nature of condition
O
Precautionary procedure
K

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

REPORTS OF RIGHT PACK TRIP DURING CLIMB---(#PRI2)---ETOPS SIGNIFICANT SYSTEM---. GROUNDED - YES. ACCOMPLISHED LH AND RH RZTC BITE CHECK REF 21-62 TASK 801. NO DEFECTS. COMPLIED WITH RAM AIR SYSTEM OPERATIONAL TEST REF B737-900 AMM 21-51-00-730-801, DOOR DOES MOVE FREELY AND MODULATING PANEL MOVES SMOOTH AND FREE. COMPLIED WITH INSPECTION OF R/H RAM AIR INLET LINKAGE REF AMM 21-51-22-200-802K FOR REQUIRED TO OPERATE LINKAGE WAS 4LBS. REPLACED R/H RAM AIR EXHAUST ACTUATOR REF AMM 21-51-27-400/000-801. ALL TESTS HAVE PASSED.