Service difficulty report · Actuator · Boeing 7478F

Difficulty date
May 15, 2026
Submitted
May 29, 2026
Operation
Air carrier
Aircraft
N611UP
Make and model
Boeing 7478F
Aircraft serial
64257
Aircraft time
29,966 hours, 4,379 cycles
Part
Actuator
Part number
178800209
Part serial
59280
Condition
Corroded
Location
Zone 500
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

FOUND LT WING NR 11 OUTBD SIDE AND NO.13 OUTBD'S INBD SIDE KRUEGER FLAP ROTARY ACTUATOR CORROSION. I.A.W AMM 27-81-06-404-011 REV. 50 STEP 3.A TO 3.E.(2).(C), INSTALLED THE NO. 11 OUTBD SIDE AND NO. 13 OUTBD'S INBD SIDE ROTARY ACTUATOR.

More about the Boeing 747-8F