SDR HAL9748

Service difficulty report · Rib · Doug DC951

Difficulty date: March 12, 1997
Submitted: March 26, 2000
Operation: Air carrier
Aircraft: N709HA
Make and model: Doug DC951
Aircraft serial: 47764
System (JASC): 5531 · Vertical Stabilizer, Spar/Rib
Part: Rib
Condition: Cracked
Location: Vert Stab
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

VERTICAL STABILIZER LEADING EDGE, INTERNAL, NR 4 RIB CRACKED BOTTOM RIGHT SIDE AT STA ZFS 82. STOP DRILLED CRACK. FABRICATED PR 2046 DOUBLERS, TREATED AND INSTALLED COMPLETE IAW SRMS' 51-10-3, 51-10-2, 55-02, FIG 19.55-01, FIG 2, SHEET 11.51-60-0, 51-30-2, AND 51-30-5. TOTAL TIME: 29,567 HOURS. TOTAL CYCLES, 73,626.

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