Service difficulty report · Doubler · Doug MD11F

Difficulty date
September 23, 2022
Submitted
September 29, 2022
Operation
Air carrier
Aircraft
N591FE
Make and model
Doug MD11F
Aircraft serial
48527
Aircraft time
90,954 hours, 20,509 cycles
Part
Doubler
Part number
APB7209
Condition
Cracked
Location
Central Tank
Stage of operation
IN
How discovered
O
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

LH SIDE OF OVER THE WING TANK AT SLANT PANEL AREA AT LOCATION APPROX. STA. 1370 BETWEEN APPROX. STA LBL 100 TO LBL 88: APB7240-9 INTERNAL TANK DOUBLER HAS EXISTING DAMAGE AT LOWER FASTENER HOLE. FABRICATED NEW DOUBLER PER DWG APB7240 AND MD11 SRM 51-31-01-0G. SEE JPF OVER MAJOR REPAIR.

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