Service difficulty report · Doubler · Doug MD11F

Difficulty date
March 20, 2019
Submitted
April 9, 2019
Operation
Air carrier
Aircraft
N628FE
Make and model
Doug MD11F
Aircraft serial
48447
Aircraft time
105,318 hours, 21,205 cycles
Part
Doubler
Part number
ARB71771
Condition
Corroded
Location
Lt Wing
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 WING UPPER WING SKIN AT XORS 252 FOUND CORROSION LEFT WING UPPER WING SKIN AT XORS 252 CORROSION REMOVED AS PER SRM 51-21-01-0G. ORIGINAL THICKNESS 0.237" REMAINED 0.091" MATERIAL REMOVED 0.146". LENGTH 3.7" WIDTH 3.5" FOUND EXCEEDED LIMIT PER SRM 57-20-01-1A ALLOWABLE DAMAGE 1 FIGURE 101. REWORKED AREA REPAIR PERFORMED AS PER EA 1-5730-T0345910 P1 TITLE : WINGS - PLATES AND SKINS - LH WING - CORROSION FOUND ON MLG SUPPORT UPPER DOUBLER JUST AFT OF INNER REAR SPAR REFERENCE LINE. REPAIR CLASSIFIED AS MINOR PER GMM 6-2-100.

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