Service difficulty report · Fitting · Doug MD11F

Difficulty date
September 18, 2021
Submitted
October 1, 2021
Operation
Air carrier
Aircraft
N521FE
Make and model
Doug MD11F
Aircraft serial
48478
Aircraft time
84,111 hours, 15,761 cycles
Part
Fitting
Part number
ARC70571
Condition
Corroded
Location
Lt Wing Te Flap
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

LEFT HAND WING - OUTBOARD FLAP VANE ASSEMBLY,FITTING (D) ECCENTRIC HOLE CORROSION CORROSION AT LEFT HAND WING - OUTBOARD FLAP VANE ASSEMBLY FITTING (D) ECCENTRIC HOLE REWORKED BY MACHINING AND FOUND EXCEED LIMIT AS PER MD-11 SRM 57-50-02-2R REPAIR 5 FIGURE 201. OVERSIZED ECCENTRIC BUSHING FABRICATED BY MACHINING AS PER MD-11 SRM 57-50-02-2R REPAIR 5 FIGURE 201 AND E.A.#1-5750-T0301579 A PART 2 STEP 3, TITLE: WINGS - FLIGHT SURFACES - LHW FLAP VANE FITTING REWORKED - TRACK SUPORT FITTINGS CORROSION REPAIR. AND INSTALLED AS PER AMM 27-50-32-4. REPAIR CLASSIFIED AS MINOR PER GMM 6-2-100. REFER TO SNRM NUMBER NOO751 ATTACHED E.A.#1-5750-T0301579 A PART 2 FOR DETALS.

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