Service difficulty report · Skin · Boeing 7474R7F

Difficulty date
July 8, 2010
Submitted
August 16, 2010
Operation
Air carrier
Aircraft
N581UP
Make and model
Boeing 7474R7F
Aircraft serial
25866
Aircraft time
82,754 hours, 14,396 cycles
Engine
Ge CF680C2B1F
Part
Skin
Part number
65B05730005
Part serial
001013
Condition
Cracked
Location
Lt Elevator
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, EMP LT OTBD ELEVATOR LWR SURFACE L/E FIXED PANEL CRACK AT ELE STA 281.8, CRACK LENGTH 2.3". STA 273-290 AREA L/E FIXED PNL REPAIRED IAW HX RS R55-20-36774, REV A & EO B747-5520-38940-A, ORG. MAT'L 0.032IN 6061-T6 CRACK LENGTH 2.3", FINAL CUTOUT SIZE 16.7" X 6.75" THIS IS CLASSIFIED A MAJOR REPAIR WITH MAT'L 7075T6-0.071" AS SKIN SEGMENT 7075T6-0.080" AS SPLICE. 7075T6-0.071" AS STRAP, REPAIR SIZE IS 6.75" X 22.875".

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