SDR UPS02839845

Service difficulty report · Skin · Doug DC871F

Difficulty date: October 14, 2002
Submitted: November 4, 2002
Operation: Air carrier
Aircraft: N779UP
Make and model: Doug DC871F
Aircraft serial: 45979
Aircraft time: 72,453 hours, 47,866 cycles
System (JASC): 5330 · Fuselage Main, Plate/Skin
Part: Skin
Condition: Cracked
Location: Fuselage
Stage of operation: IN
How discovered: X
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

INSPECTION TYPE:C2 RADIOGRAPHIC (X-RAY) INSPECTION DETECTED 2 CRACKS ON THE L1 DOOR LOWER AFT CORNER APPROX 5.25 INCHES AND .419 INCH AT STA 60 LONG 20L. REMOVED EXISTING DOUBLER, CUTOUT CRACKED AREA, NDT VERIFIED NO CRACKS AT CUTOUT, FABRICATED AND INSTALLED DOUBLERS, TRIPLERS, AND FILLERS AT L1 DOOR FWD AND AFT CORNERS IAW SRM 53-2-0 FIG 14, PREVIOUS DOUBLER COVERED BOTH CORNERS.

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