SDR 95ZZZX7062

Service difficulty report · Rib · Boeing 72723

Difficulty date: November 28, 1995
Submitted: March 26, 2000
Operation: General aviation
Aircraft: N1972
Make and model: Boeing 72723
Aircraft serial: 18428
System (JASC): 5712 · Wing, Rib/Bulkhead
Part: Rib
Condition: Cracked
Location: Rt Ws 601.5
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

DURING INSPECTION OF AIRCRAFT PER AD 94-07-08 (SB 727-57-127), THE HYDROPRESSED RIB AT RT WS 601.5 WAS FOUND CRACKED IN 2 PLACES ON THE LOWER FLANGE. ONE CRACK WAS AT THE AFT END FASTENER HOLE AND THE OTHER WAS AT THE THIRD FASTENER HOLE FORWARD OF THE AFT END. ALSO, UPPER FLANGE WAS FOUND CRACKED AT THE THIRD FASTENER HOLE AFT OF THE FORWARD END OF RIB. SUSPECT CAUSE: FATIGUE.

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