Service difficulty report · Controller · Boeing 7879

Difficulty date
June 3, 2023
Submitted
June 7, 2023
Operation
Air carrier
Aircraft
N27959
Make and model
Boeing 7879
Aircraft serial
36407
Aircraft time
36,073 hours, 3,461 cycles
Part
Controller
Part number
AAEH003578
Part serial
3578
Condition
Inoperative
Location
Left
Part time
36,072 hours, 3,461 cycles
Stage of operation
UK
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

ELEC MC CAC L1 / START L1 STATUS MSG DDG 24-15-01 COMPLIED WITH, CMSC-L1 CHANEL 1 DEACTIVATED, PLACED ON MEL REQUEST MEL TOMC APPROVED MTC MSG 24-29501 ACTIVE L1 CAC CMSC REMOVED IAW MM 24-15-02. LEFT 1(L1) COMMON MOTOR START CONTROLLER REMOVED IAW AMM .COMMON MOTOR START CONTROLLER SOFTWARE INSTALLATION CARRIED 7000045H03,QTY :1 78-2415-9-9001,QTY :1 DMC-B787-A-24-15-02-00A-520A-A DUE TO NO SOFTWARE OUT IAW AMM DMC-B787-A-24-15-02-00A-750A-A 100 % PASSED. COMMON ROTABLE PARTS CHANGE WAS INDICATED - TT # 1727884 SN OFF 3578 LOADABLE.PN-7000045H03, SN-AAEH003578. SERVICEABLE CMSC (LEFT MOTOR START CONTROLLER OPERATIONAL TEST CARRIED OUT IAW AMM 1 CAC) INSTALLED IAW AMM DMC-B787-A-24-15-02-00A-720A-A DMC-B787-A-24-15-02-00A-320A-A TEST PASSED. PARTS USED: CONTROLLER, COM OFF 78-2415-9-9001 3578 ON 78-215-9-9001 3092

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