SDR HAL9750

Service difficulty report · Rib · Doug DC951

Difficulty date: April 9, 1997
Submitted: March 26, 2000
Operation: Air carrier
Aircraft: N709HA
Make and model: Doug DC951
Aircraft serial: 47764
System (JASC): 5400 · Nacelle/Pylon Structure
Part: Rib
Condition: Cracked
Location: Nr 2 Pylon
Stage of operation: IN
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

.6875 INCH VERTICAL CRACK ON NR 2 PYLON CLOSING RIB ADJACENT TO FS 1167 BOTTOM OF LIGHTING HOLE. FABRICATED DOUBLER, STOP DRILLED CRACK, AND INSTALLED DOUBLER PER DAC ACTION NR 327482 OR SRM 51-10-2. TOTAL TIME: 29,567 HOURS. TOTAL CYCLES, 73,626. (X)

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