Service difficulty report · Relay · Boeing 74747UF

Difficulty date
October 6, 2026
Submitted
October 7, 2026
Operation
Air carrier
Aircraft
N492MC
Make and model
Boeing 74747UF
Aircraft serial
29253
Aircraft time
113,530 hours, 19,551 cycles
Part
Relay
Part number
W460F4A
Condition
Faulted
Location
Thrust Reverser
Stage of operation
TO
How discovered
O
Nature of condition
J
Precautionary procedure
C

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

What was found

REJECTED TAKE OFF DUE TO #2 ENG REVERSER EICAS MSG(<P>TRANSFER TO DMI 260447 PER MEL 78-31-01A CAT C DUE DATE 16OCT2026</P> / <P>LP 2029709 M5: T/S AND PERFORMED WIRING CHECK. FOUND GRD SAFETY RELAY R8016 DEFECTIVE. REMOVED AND REPLACED RELAY & PERFORMED #2 T/R OPS CHECK. OPS CHECK NORMAL PER AMM 78-31-00/501 & WDM 78-34-02.

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