TM 1-1520-238-23
2-373
2.103.
CLASSIFICATION OF EMPENNAGE DAMAGE AND TYPES OF REPAIR – continued
Category
Action
Limits
b. Castings, Forgings
A
Less than 25 percent of cross section and
less than 10 percent of thickness or 0.040
INCH depth.
Repair corroded area
(TM 1-1500-204-23).
B
Exceeds A.
Replace.
c. Fasteners, Bearings, and Bushings
A
Removable or allowed to remain without
affecting size or function. Stabilator pivot
bolts and self-alining bearings allowed
discoloration below surface coating,
surface pits, and/or scratches less than
0.005 INCH after polishing with cloth
(item 50, App F) to remove roughness.
(Surface coating must not be removed.)
Repair (TM 1-1500-204-23).
B
Exceeds A.
Replace.
d. Covers
A
Not applicable.
B
Less than 10 percent of material thickness
and less than 4.00 SQUARE-INCHES
after clean up.
Repair (TM 1-1500-204-23).
C
Exceeds B or repairs will affect function.
Replace.
e. Step assembly
B
Less than 10 percent of wall thickness or
25 percent of tube circumference in length
or width after clean up.
Repair (TM 1-1500-204-23).
C
Exceeds B.
Replace.
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