Service difficulty report · Doubler · Doug MD11F

Difficulty date
September 11, 2025
Submitted
October 7, 2025
Operation
Air carrier
Aircraft
N275UP
Make and model
Doug MD11F
Aircraft serial
48774
Aircraft time
64,210 hours, 17,330 cycles
Part
Doubler
Part number
ARB28931
Condition
Cracked
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

L/H WING. FIXED L/E INNER SKIN BEADED DOUBLER LOCATED APPROX STA XORS 506 HAS CRACK. OUT OF SEQUENCE STEP 3 C/W IAW UPS RII GMM 04-02. ACCOMPLISHED REPAIR PER MD-11 SRM 57-40-02-2R FIGURE 205 REPAIR 15 REV 71

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