SDR 04FDEA02485

Service difficulty report · Skin · Doug MD11F

Difficulty date: August 17, 2004
Submitted: September 8, 2004
Operation: Air carrier
Aircraft: N578FE
Make and model: Doug MD11F
Aircraft serial: 48458
Aircraft time: 34,367 hours, 9,652 cycles
System (JASC): 5730 · Wing, Plate/Skin
Part: Skin
Part number: APB74411
Condition: Corroded
Location: Zone 100
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

CENTER WING TANK, STA 1219 - STA 1239, LBL 27 - LBL 47 HORIZONTAL PRESSURE PANEL TOP SURFACE CORRODED. CORROSION REMOVED, MATERIAL ORIGINAL THICKNESS = 0.175 INCH, MATERIAL REMOVED = 0.017 INCH, REMAINING MATERIAL = 0.158 INCH AND FOUND WITHIN LIMITS AS PER FEDEX EA NR 1-5710-76817, WINGS, CENTER WING UPPER PANEL, SKIN CORROSION.

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