TM 1-1520-238-23
5-10
Change 8
5.1.
MAIN ROTOR INSPECTION – continued
(2) Damage or missing teflon material under the inboard metal abrasion strips is acceptable.
g. Inspect droop stop striker plates (11) and roller (12) for serviceability.
(1) Check droop stop roller striker plates (11) for wear.
(a) Striker plates (11) may have wear or dents/gouges up to 0.030 INCH maximum.
(2) Check droop stop roller (12) in droop stop follower (13) for freedom of movement (when blades (15) are not
installed) and loose hardware.
(3) Check droop stop rollers (12) for chipping, wear, or play.
(a) Maximum depth of flat spots or dents on rollers (12) not to exceed 0.10 INCH (para 5.41).
(4) Check droop stop rollers (12) for wear and dents (para 5.41).
h. Inspect droop stop plunger (14) for serviceability.
(1) Check droop stop plunger (14) for cracks. None allowed.
(2) Check droop stop plunger (14) for wear.
(a) Maximum wear through anodized surface not to exceed 0.50 INCH by 0.50 INCH, three places.
(3) Check droop stop plunger (14) for freedom of movement by moving rotor blade (15) up and down.
i. Inspect droop stop follower (13) for serviceability.
(1) Check droop stop follower (13) for wear, galling, scoring, and elongation. Maximum depth of damage is
0.025 INCH.
(2) Check droop stop follower (13) for broken or damaged spring (16). None allowed.
(3) Check droop stop follower (13) for surface wear.
(a) Curved surface wear can be measured on assembly by measuring gap. Minimum allowable gap 0.015
INCH.
(b) Top or bottom surface wear at corners (13) not to exceed maximum depth of 0.050 INCH.
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