TM 1-1520-238-23
Change 7 5-235
5.52.
TAIL ROTOR BLADE REPAIR CRITERIA – continued
AREA
MAXIMUM
DEPTH
WITHOUT
REPAIR
NONE
TABLE 5 6. REPAIR LIMITS FOR DENTS AND DEPRESSIONS
NOTES:
1
ALL DIMENSIONS ARE IN INCHES (TOLERANCE = +/-0.25 INCH).
2
USE STRAIGHT EDGE AND DEPTH GAGE. NO VISIBLE DENT SHALL EXIST DURING STRAIGHT EDGE TEST.
STRAIGHT EDGE SHALL ROCK SMOOTHLY WITHOUT JARRING OR CLICKING ON ALL CURVED SURFACES.
3
INSPECT FOR BOND DELAMINATION IN AREA OF DENT.
4
NO SHARP CREASES ALLOWED.
5
SMOOTHLY ROUNDED DENTS ARE ACCEPTABLE TO THE MAXIMUM DIMENSION SHOWN.
6
DAMAGE UP TO THE MAXIMUM DEPTH MUST BE REPAIRED PER PARA 5.60.
M04-2119-2A
MINIMUM DISTANCE
BETWEEN DEFECT
CENTERS
MAXIMUM
NUMBER
OF DEFECTS
MAXIMUM
ALLOWED
AREA
MAXIMUM
DEPTH
WITH
REPAIR
(Note 6)
TM REPAIR
PARAGRAPH
2
1.0
10.0
1.6
0.5
NONE
N/A
N/A
N/A
N/A
1.0 x 1.5
3
1.5
5.56
0.002
0.004
1.0 x 1.5
3
1.5
5.56
0.005
1.0 x 1.5
3
1.5
5.56
1.0 x 1.5
3
1.5
5.56
0.008
0.010
1.0 x 1.5
3
1.5
5.56
0.015
1.0 x 1.5
3
1.5
5.56
1.0 x 1.5
3
1.5
5.56
0.018
0.010
0.010
0.020
1.0 x 1.5
3
1.0
5.56
0.030
1.0 x 1.5
3
1.0
5.56
0.010
1.0 x 1.5
3
1.0
5.56
0.040
0.010
0.010
0.050
1.0 x 1.5
3
2.5
5.56
0.010
1.0 x 1.5
3
1.0
5.56
0.025
1.0 x 1.5
3
2.5
5.56
0.025
0.020
1.0 x 1.5
3
4.0
N/A
N/A
5
5
5
5
5
5
2
2
2
2
2
2
D
C
G
H
K
L
J
K
E
I
D
J
B
M
N
A
A
A
E
F
O
A
F
E
G
H
I
B
C
D
J
K
L
M
N
O
3.6
3.0
2.5
3.0
4.0
6.5
4.0
5.4
END OF TASK
