Service difficulty report · Frame · Boeing 747123

Difficulty date
January 3, 2007
Submitted
February 9, 2007
Operation
Air carrier
Aircraft
N672UP
Make and model
Boeing 747123
Aircraft serial
20324
Aircraft time
76,834 hours, 22,085 cycles
Part
Frame
Condition
Cracked
Location
Bs 920
Stage of operation
IN
How discovered
9
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 LEFT BS 920 FRAME TENSION TIE ATTACHMENT AREA FOUND 1EA FASTENER HOLE CRACKED AT FRAME APPROX 0.040" RUNNING UPWARD AND DOWNWARD. M/D LEFT BS 920 FRAME 1EA HOLE OVERSIZED BY INCREMENTS TO 0.247" DIA. CRACK FREE INSPECTED BY HFEC PER NTM PART 6 51-00-00 FIG 16, FASTENER INSTALLED AS PER UPS EO B747-5310-23715 APPENDIX B.