TM 55-2835-209-23
3-15 INSPECT HOT SECTION COMPONENTS (AVIM) (CONT)
21.
22.
23.
24.
25.
NOTE
Inspect turbine rotor as fol-
lows.
Visually inspect turbine rotor
blade ends and hub area (reference
C) for cracks.
No cracks allowed.
Inspect turbine blades for foreign
object damage.
Bends greater than
15 degrees are not acceptable (de-
tail 1).
Inspect turbine rotor blades for
erosion.
Erosion bends greater
than 90 degrees are not acceptable
(detail 2).
Inspect for turbine rotor blade tip
breakage.
Breakage shall not be
greater than 0.250 inch maximum
depth each blade (detail 3).
Inspect turbine rotor outer diam-
eter for wear or erosion.
Diameter
D shall not be less than 6.943
inches.
Change 1
3-41
