TM 1-1520-238-23
2-49
2.14.
CENTER FUSELAGE FRAME STRUCTURE
HEAT TREAT TO CONDITION SHOWN AFTER FORMING.
DO NOT INSTALL CONDITION O MATERIAL.
1
2
3
2
4
5
5
2
5
5
5
6
M04-0008
CAUTION
Item
Material
Specification
Condition
Thickness
(inches)
1
Forging
2
2024 AL ALY
QQ-A-250/4
T42
0.040
3
2024 AL ALY
QQ-A-250/4
T42
0.050
4
2024 AL ALY
QQ-A-250/4
T42
0.071
5
2024 AL ALY
QQ-A-250/4
T42
0.032
6
7075 AL ALY
QQ-A-250/12
T6
0.071
