SDR SCNA20160916183

Service difficulty report · Rib · Boeing 73773V

Difficulty date: September 16, 2016
Submitted: September 20, 2016
Operation: Air carrier
Aircraft: N710SY
Make and model: Boeing 73773V
Aircraft serial: 30241
Aircraft time: 49,689 hours, 26,525 cycles
System (JASC): 5511 · Horizontal Stabilizer, Spar/Rib
Part: Rib
Condition: Cracked
Location: Lt Horiz Stab
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

WHILE ACCOMPLISHING LT HORIZONTAL STAB LOWER SKIN MODIFICATION, CRACK FOUND AT FASTENER HOLE ON RIB, STA 138.7, 12" FROM AFT SPAR ON THE OTBD HORZ FLANGE. DAMAGE HAS BEEN REMOVED AND 4 FASTENERS ON EITHER SIDE OF THE CUTOUT HAS BEEN NDT FOR CRACKS WITH NO DEFECTS. REPAIR COMPLETED.

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