Service difficulty report · Spar Cap · Doug MD11F

Difficulty date
July 26, 2023
Submitted
July 26, 2023
Operation
Air carrier
Aircraft
N609FE
Make and model
Doug MD11F
Aircraft serial
48549
Aircraft time
93,650 hours, 22,661 cycles
System (JASC)
5711 · Wing Spar
Part
Spar Cap
Part number
ARB74141
Condition
Corroded
Location
Zone 500
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 TRAILING EDGE LOWER REAR SPAR CAP FOUND WITH CORROSION AT STATION XORS 1070 (OUTBOARD ISLAND AREA). CORROSION AT LEFT HAND WING OUTBOARD TRAILING EDGE LOWER REAR SPAR CAP AT STATION XORS1045 - XORS1083 REMOVED AS PER MD-11 SRM 51-21-01-0G AND FOUND EXCEEDED LIMITS AS PER MD-11 SRM 57-00-10-1A FIGURE 101 SHEET 1 ALLOWABLE DAMAGE 1. CORROSION AT LEFT HAND WING OUTBOARD TRAILING LOWER REAR SPAR CAP AT STATION XORS1045 - XORS1083 REPAIRED AS PER EA#1-5710-T0375459 P1 TITLE: WING - BASIC WING STRUCTURE - LH WING LOWER REAR SPAR CAP AFT FLANGE CORROSION REPAIR, XORS1045 TO XORS1083. REPAIR CLASSIFIED AS MAJOR PER GMM 6-2-100.

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