Service difficulty report · Spar · Boeing 747123

Difficulty date
April 22, 2002
Submitted
May 20, 2002
Operation
Air carrier
Aircraft
N676UP
Make and model
Boeing 747123
Aircraft serial
20101
Aircraft time
75,235 hours, 21,257 cycles
Part
Spar
Condition
Cracked
Location
Center Wing
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

INSPECTION TYPE:C RT BS 990 FRONT SPAR WEB ONE EACH FASTENER HOLE COMMON TO BATH TUB FITTING CRACK REVEALED AT FRONT SPAR WEB LAYER FOR DETAIL PLS REFER ATTACHED SKETCH. RT BS 990 FRONT SPAR WEB CRACKED HOLE OVERSIZED TO 0.660" AND FREEZE PLUG INSTALLED AND DRILLED AS PER BS R53-43-34792.