Service difficulty report · Tension Tie · Boeing 747451

Difficulty date
January 9, 2013
Submitted
January 14, 2013
Operation
Air carrier
Aircraft
N667US
Make and model
Boeing 747451
Aircraft serial
24222
Aircraft time
97,543 hours, 11,950 cycles
Part
Tension Tie
Condition
Cracked
Location
Bs 1120
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

DURING OPEN HOLE HFEC INSPECTION ON LT SIDE BS 1120 TENSION TIE FOUND ONE CRACK AT STEEL PLATE, LWR ROW 6TH FASTENER HOLE FROM OTBD. REAMED OVERSIZE FROM 0.216" TO 0.247" DIA IAW SB747-53A2507, REV 1.