SDR EIA2005023

Service difficulty report · Floorbeam · Boeing 747273C

Difficulty date
February 22, 2005
Submitted
April 25, 2005
Operation
Air carrier
Aircraft
N471EV
Make and model
Boeing 747273C
Aircraft serial
20651
Aircraft time
91,668 hours, 21,858 cycles
Part
Floorbeam
Condition
Cracked
Location
Fuselage
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

BS 420 LBL 43 UPPER DECK FLOORBEAM WEB HAS CRACK AT UPPER T-CHORD AREA. REMOVED DAMAGED SECTION OF WEB AND REPAIRED PER B747 SRM 53-10-07 PG 47-50 FIG II. BONDED WEB AND DOUBLER FOR STA 420 LBL 34-54 PER BAC 5514-5101 BOEING DRAWING 65B10931 SHEET 75 AND B747 SRM 51-40-06 PG 23. ALODINED ALL BARE METAL PER B747 SRM 51-10-02 PGS 7-8 AND PRIMED PER BSOPM 20-41-02 PGS 7-9.