SDR UPS97425088

Service difficulty report · Rib · Boeing 747123F

Difficulty date: October 30, 1997
Submitted: March 26, 2000
Operation: Air carrier
Aircraft: N677UP
Make and model: Boeing 747123F
Aircraft serial: 20391
System (JASC): 5712 · Wing, Rib/Bulkhead
Part: Rib
Condition: Cracked
Location: Ws 1140
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

INSPECTION TYPE-C, RT WING AT WS 1140 RIB, FWD UPPER STRINGER CUTOUT RIB CRACKED. CRACK LENGTH APPROX 1.25 INCH. RT WING STA 1140 RIB REPAIRED ACC TLX UPS-AMS-97-0376RE,-0388RE, -0394RE AND 811-3 NM 1518, UPS EFN 747-57-0407, KLM DFX 97-287.