Service difficulty report · Floorbeam · Boeing 747243B

Difficulty date
November 16, 2007
Submitted
December 3, 2007
Operation
Air carrier
Aircraft
N540MC
Make and model
Boeing 747243B
Aircraft serial
22508
Aircraft time
100,688 hours, 17,518 cycles
Part
Floorbeam
Condition
Damaged
Location
Zone 200
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

ON REMOVAL OF MCD CEILING PANELS AROUND STA 600 FOUND UPPER FLOORBEAM LOWER CHORD AT BS 620 RBL 52 HAS SUSTAINED IMPACT DENT OF 5" LONG 1.5" WIDE 0.187" DEEP. STRUCTURAL DISCREPANCY RAM PART 1 COMPLETED. HFEC ACCOMPLISHED TO DAMAGED AREA PER NDT PARA 6 51-00-00 FIG 23. NO CRACK INDICATION FOUND. LOWER CHORD STA 620 RBL 52 WL 300.8 REPAIRED PER ATLAS AIR XEO 53-111607.