TM 1-1520-238-23
2-50
2.15.
AFT FUSELAGE FRAME STRUCTURE
1
3
4
5
3
3
7
6
3
3
2
M04-0009
CAUTION
DO NOT INSTALL CONDITION O MATERIAL.
HEAT TREAT TO CONDITION SHOWN AFTER FORMING.
Item
Material
Specification
Condition
Thickness
(inches)
1
2024 AL ALY
QQ-A-250/4
T42
0.032
2
2024 AL ALY
QQ-A-250/4
T42
0.040
3
7075 AL ALY
QQ-A-250/12
T6
0.040
4
7075 AL ALY
QQ-A-250/12
T6
0.050
5
7075 AL ALY
QQ-A-250/12
T6
0.100
6
2024 AL ALY
QQ-A-250/4
T42
0.071
7
Forging
