Service difficulty report · Actuator · Boeing 76731K

Difficulty date
April 27, 2026
Submitted
April 28, 2026
Operation
Air carrier
Aircraft
N1489A
Make and model
Boeing 76731K
Aircraft serial
27206
Aircraft time
119,045 hours, 25,257 cycles
Part
Actuator
Part number
3790011106
Part serial
0475
Condition
Malfunctioned
Location
Zone 300
Stage of operation
TX
How discovered
O
Nature of condition
J
Precautionary procedure
D

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

What was found

RUDDER RATIO EICAS MESSAGE ON TAXI OUT. REMOVED AND REPLACED RUDDER RATIO CHANGER ACTUATOR IAW B767 AMM 27-21-15 LEAK CHECK GOOD, OPS CHECK GOOD.RAN BOTH ENGINES @ IDLE, NO RUDDER RATIO MSG PRESENT. PERFORMED RUDDER RATIO OPS CHECK PER B767 AMM 27-21-00. NO FAULTS NOTED PERFORMED BITE CHECK ON BOTH RUDDER RATIO BOX AND NO FAULTS, LATCHED FAULT CLEARED AND DIDN'T SHOW AGAIN. IAW FIM 27-21 FT 804 OPS CHECK GOOD RETURNED A/C TO SERVICE

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