SDR FDEA202302200307

Service difficulty report · Rib · Doug MD11F

Difficulty date: February 20, 2023
Submitted: February 20, 2023
Operation: Air carrier
Aircraft: N572FE
Make and model: Doug MD11F
Aircraft serial: 48755
Aircraft time: 80,764 hours, 17,418 cycles
System (JASC): 5710 · Wing Main, Frame Structure
Part: Rib
Part number: ARB18253
Condition: Cracked
Location: Zone 500
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

WHILE CARRIED OUT INTERNAL BORESCOPE INSPECTION ON LEFT HAND NUMBER 6 SLAT LOOSE RIVETS AREA (SNRM N00480), FOUND THE SLAT INTERNAL RIB CRACK AT STATION XOS 811.623. CRACKED RIB AT LEFT HAND NUMBER 6 SLAT LOOSE RIVETS AREA (SNRM N00480) INTERNAL STATION XOS 811.623 REPAIRED AS PER EA# 1-5750-T0373019 P1 TITLE: WINGS-FLIGHT SURFACES -LH WING SLAT NO.6-RIBS REPLACEMENT FROM XOS796 TO XOS873 -RSC TRACKING. REPAIR CLASSIFIED AS MAJOR PER GMM 6-2-100.

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