SDR FDEA202204100909

Service difficulty report · Rib · Doug MD11F

Difficulty date: April 10, 2022
Submitted: April 21, 2022
Operation: Air carrier
Aircraft: N602FE
Make and model: Doug MD11F
Aircraft serial: 48402
Aircraft time: 92,464 hours, 23,472 cycles
System (JASC): 5730 · Wing, Plate/Skin
Part: Rib
Part number: ARB18274
Condition: Cracked
Location: Zone 600
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 PERFORMING INTERNAL BORESCOPE INSPECTION (SPECIAL/NONROUTINE MAINTENANCE FORM NUMBER N00974), RIGHT HAND WING NUMBER 6 SLAT INTERNAL RIB FOUND CRACK AT LOOSE RIVETS AREA. RIGHT HAND WING NUMBER 6 SLAT INTERNAL LOOSE RIVETS AND CRACKED RIB AT STATION XOS 847.073 REMOVED AND REPLACED AS PER SRM 57-40-01-2R REPAIR 13. RIB FABRICATED AS PER DOUGLAS DRAWING ARB1827 REVISION C. REPAIR CLASSIFIED AS MAJOR PER GMM 6-2- 100.

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