SDR UPS04843524

Service difficulty report · Skin · Doug DC871F

Difficulty date: November 3, 2004
Submitted: November 22, 2004
Operation: Air carrier
Aircraft: N798UP
Make and model: Doug DC871F
Aircraft serial: 45898
Aircraft time: 67,297 hours, 25,713 cycles
System (JASC): 5730 · Wing, Plate/Skin
Part: Skin
Condition: Corroded
Location: Rt 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

RT WING UPPER SKIN CORRODED AROUND HILOCK AT XRS554, ABOVE S54. NDT VERIFIED MATERIAL THICKNESS AT CORROSION REMOVAL SITE RANGED FROM .090-0.125. CUT OUT CORROSION SITE REF SRM 57-2-1 FIG28. FABRICATED DOUBLER AND FILLER FROM SHT7075T6-.190, MACHINED FILLER TO MATCH THICKNESS, INSTALLED AND SEALED CONICAL WASHERS AND REPAIR PARTS REF SRM 57-2-1 FIG 28, 51-1-20D, 51-1-8, 51-1-20B, 51-1-15.

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