Service difficulty report · Tee Fitting · Doug MD11F

Difficulty date
September 28, 2017
Submitted
September 29, 2017
Operation
Air carrier
Aircraft
N609FE
Make and model
Doug MD11F
Aircraft serial
48549
Aircraft time
79,589 hours, 18,889 cycles
Part
Tee Fitting
Part number
ARC70531
Condition
Corroded
Location
Flap Vane
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

LT WING O/B FLAP VANE T FITTING 'B' FWD HOLE CORROSION. REWORKED BY MACHINING AND FOUND EXCEED LIMIT AS PER MD-11 SRM 57-50-02- 2R FIG 201.EXISTING SLOT HOLE:L=0.858Ï¿½ X W=0.558Ï¿½, FINAL SLOT HOLE:L=0.957Ï¿½ X W=0.657Ï¿½, MAXIMIMUM ALLOWABLE SLOT HOLE; L=0.940Ï¿½X W=0.670Ï¿½. OVERSIZED SLOT BUSHING FABRICATED BY MACHINING AND INSTALLED AS PER SRM 57-50-02-2R FIG 201 REPAIR 5 AND EA# 1-5750-T0335686 PART 1 STEP 1A. LH WING O/B FLAP OPERATION TEST CARRIED OUT AS PER AMM 27-50-00-860-801 FOUND SATISFACTORY. REPAIR CLASSIFIED AS MINOR PER GMM 6-2-100.

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