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
Bs 620
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

AFTER REMOVAL OF MCD CEILING PANEL AT STA 620 FOUND UPPER FLOORBEAM LOWER CHORD AT BS 620 LBL 52 WL 300.8 HAS IMPACT DENT. 4.5" LONG 1.5" WIDE. HFEC ACCOMPLISHED TO DAMAGED AREA PER NDT PARA 6 51-00-00 FIG 23. NO CRACK INDICATION FOUND. LOWER CHORD REPAIRED PER ATLAS AIR XEO 53-111607.