Service difficulty report · Actuator · Boeing 737990ER

Difficulty date
October 26, 2023
Submitted
October 30, 2023
Operation
Air carrier
Aircraft
N462AS
Make and model
Boeing 737990ER
Aircraft serial
36362
Aircraft time
35,160 hours, 11,070 cycles
Part
Actuator
Part number
38861883
Part serial
1014
Condition
Faulty
Location
Apu
Part time
14,436 hours, 27,519 cycles
Stage of operation
IN
How discovered
V
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

APU BLEED INOP - HAS HISTORY FOR THE SAME ON 10/13/23. GROUNDED - YES. (RESOLVED ON W/O: 1975133 TASKCARD: N/R-00001 ) C/W INITAL EVAL AND FAULT ISOLATION FOR FC 49-52192, IGV ACTUATOR LVDT SHOW CIRCUIT FAILUIRE. NO FAULTS NOTED DURING APU WIRING AND IGV ACTUATOR RESISTANCE CHECKS. DUE HISTORY RECOMMEND REPLACING THE IGV ACTUATOR. REF FIM 49-52 TASK 806. J. ASHBECK 23714 10/29/2023. REMOVED & REPLACED IGN ACTUATOR PER AMM 49-52-12 OPP CHECK GOOD NO LEAKS NOTED AT THIS TIME BITE CHECK CLEAR AT THIS TIME. THIS CLEARS MEL 49-7C. PLACARDS REMOVED SEAMC WILL NOTIFIED.