Service difficulty report · Rib · Boeing 747121

Difficulty date
July 4, 1995
Submitted
March 26, 2000
Operation
Air carrier
Aircraft
N831FT
Make and model
Boeing 747121
Aircraft serial
19648
Part
Rib
Condition
Cracked
Location
Ws 850
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

CRACK ON LEFT WING LEADING CAVITY WS 850 FORGED RIB AT THE AFT UPPER LEFT SIDE CHORD. MANUFACTURED REINFORCEMENT PER BOEING SRM 57-20-03, INSTALLED PER BOEING SRM 51-30-02.