SDR TWAA0008308

Service difficulty report · Skin · Doug DC931

Difficulty date: May 17, 2000
Submitted: May 25, 2000
Operation: Air carrier
Aircraft: N978Z
Make and model: Doug DC931
Aircraft serial: 47250
Aircraft time: 75,804 hours, 88,221 cycles
System (JASC): 5414 · Nacelle/Pylon, Plate/Skin
Part: Skin
Condition: Cracked
Location: Rt Pylon
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

DURING CC, FOUND RT PYLON, UPPER SKIN CRACKED AT THE TOP OF THE PYLON ON THE WEDGE APPROXIMATELY 11 INCHES FROM THE FIXED COWL AFT EDGE, OUTBOARD EDGE OF THE SKIN. STOP DRILLED CRACKS, MADE DOUBLER SAME GUAGE THICKNESS AS SKIN AND INSTALLED WITH .125 INCH MS20427-4 RIVETS PER SRM 54-01 PG 6. CC 05-17-00 MCI.

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