Service difficulty report · Rib · Boeing 747222B

Difficulty date
April 26, 1997
Submitted
March 26, 2000
Operation
Air carrier
Aircraft
N151UA
Make and model
Boeing 747222B
Aircraft serial
23736
Engine
Pwa JT9D7R4G2
Part
Rib
Part number
65B010947
Condition
Cracked
Location
Ws 1516.6
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

UPPER CHORD ON LEFT WING RIB AT WS 1516.6 WAS CRACKED. CRACK DISCOVERED DURING HEAVY MAINTENANCE VISIT. CRACK REPAIRED PER 747-200 STRUCTURAL MANUAL.