Service difficulty report · Rib · Doug MD11F

Difficulty date
March 18, 2025
Submitted
March 19, 2025
Operation
Air carrier
Aircraft
N523FE
Make and model
Doug MD11F
Aircraft serial
48479
Aircraft time
93,403 hours, 19,559 cycles
Part
Rib
Part number
ARB18776
Condition
Cracked
Location
Nr 7 Slat
Component
Rib · Doug
Component part number
ARB18776
Stage of operation
IN
How discovered
B
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

RIGHT HAND WING: UPON BORESCOPE INSPECTION ON NUMBER: 7 SLAT LOOSE FASTENER INNER RIBS, CRACK FOUND ON INNER RIB (REFER TO SPECIAL / NONROUTINE MAINTENANCE FORM: N00255) AT STATION XOS 968.159. RIGHT HAND WING NUMBER 7 SLAT CRACK AT INNER RIB AT STATION XOS 968.159 REPAIR CARRIED OUT AS PER EA# 1-5750-T0382658P1 TITLE: WINGS - FLIGHT SURFACES - RH WING - #7 SLAT ASSY - CRACK RIBS - LOCAL FABRICATION - RSC TRACKING. REPAIR CLASSIFIED AS MAJOR PER GMM 6-2-100.

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