64-30 Tail Rotor Blade Inspection and Repair
This blade repair procedure outlines the repair limits, methods and materials used for repairing
tail rotor blades. Repairs are limited to blending out scratches, dents, nicks, removing corrosion,
and refinishing the blades. The inspections, repairs and limitations contained herein refer to
damage sustained in service, including damage during shipping and handling (manufacturing
irregularities are treated separately by the factory). In-service damage will generally exhibit
paint scuffing or scratches and often times freshly-exposed metal in the form of scratches
in the finish. If there are any questions as to the possibility of a manufacturing irregularity,
contact RHC Technical Support.
CAUTION
A blade may be repaired more than one time. However, in no
case can more than the maximum material be removed or the
maximum dent depth be exceeded in any one location.
Refer to Section 62-40 for measuring blade damage.
64-31 Scratches and Corrosion
1. Refer to Figure 64-4. Verify damage does not exceed the following limits:
a. 0.008 inch maximum damage between RS 18.00 and RS 30.00.
b. 0.005 inch maximum damage more than 15° spanwise between RS 18.00 and inboard.
c. 0.008 inch maximum damage less than 15° spanwise between RS 18.00 and inboard.
2. Refer to Section 62-50 (main rotor) for repair procedures for damage within limits.
Blend out scratches or corrosion on skins with a 0.10 inch blend radius.
64-32 Dents
CAUTION
Tap-test dented areas in honeycomb. If any voids are found
associated with dents, contact RHC Customer Service.
Tap-test voids, debonds, and dents in blades using an AN970-4
washer or 1965 or later U.S. quarter dollar coin in good condition.
CAUTION
When dented areas are found, inspect opposite side of the blade
for a bulge. Replace blade with a bulge greater than 0.010 inch
opposite a dent.
CAUTION
Do not repair any dent that has a sharp cut or break in the
skin. If necessary, locally penetrant inspect, keeping penetrant
materials away from bond joints.
WARNING
Any damaged tail rotor blade that cannot be repaired within the
limits of this section must be removed from service immediately
and marked "scrap."
25 OCT 2010
R66 Maintenance Manual
Chapter 64 Tail Rotor
Page 64.9
Summary of Contents for RTR 660
Page 6: ...Intentionally Blank Page vi Introduction R66 Maintenance Manual SEP 2012...
Page 18: ...Intentionally Blank Page xviii Introduction R66 Maintenance Manual SEP 2012...
Page 20: ...Intentionally Blank Page 1 ii Chapter 1 General R66 Maintenance Manual SEP 2012...
Page 30: ...Intentionally Blank Page 1 10 Chapter 1 General R66 Maintenance Manual SEP 2012...
Page 42: ...Intentionally Blank Page 5 ii Chapter 5 Inspection Schedule R66 Maintenance Manual SEP 2012...
Page 54: ...Intentionally Blank Page 5 12 Chapter 5 Inspection Schedule R66 Maintenance Manual SEP 2012...
Page 90: ...Intentionally Blank Page 5 44 Chapter 5 Inspection Schedule R66 Maintenance Manual 25 OCT 2010...
Page 108: ...FIGURE 7 1 JACKING Page 7 2 Chapter 7 Jacking and Hoisting R66 Maintenance Manual SEP 2012...
Page 110: ...FIGURE 7 2 HOISTING Page 7 4 Chapter 7 Jacking and Hoisting R66 Maintenance Manual SEP 2012...
Page 114: ...Intentionally Blank Page 8 ii Chapter 8 Weight and Balance R66 Maintenance Manual 25 OCT 2010...
Page 118: ...Intentionally Blank Page 8 4 Chapter 8 Weight and Balance R66 Maintenance Manual SEP 2012...
Page 130: ...Intentionally Blank Page 9 ii Chapter 9 Ground Handling R66 Maintenance Manual 25 OCT 2010...
Page 154: ...Intentionally Blank Page 12 ii Chapter 12 Servicing R66 Maintenance Manual SEP 2012...
Page 160: ...FIGURE 12 3 TAIL ROTOR GEARBOX Page 12 6 Chapter 12 Servicing R66 Maintenance Manual SEP 2012...
Page 164: ...FIGURE 12 4 HYDRAULIC SYSTEM Page 12 10 Chapter 12 Servicing R66 Maintenance Manual SEP 2012...
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Page 176: ...Intentionally Blank Page 18 ii Chapter 18 Track and Balance R66 Maintenance Manual SEP 2012...
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Page 236: ...Intentionally Blank Page 21 ii Chapter 21 Environment Control R66 Maintenance Manual SEP 2012...
Page 238: ...FIGURE 21 1 NOSE VENT Page 21 2 Chapter 21 Environment Control R66 Maintenance Manual SEP 2012...
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Page 252: ...Intentionally Blank Page 25 ii Chapter 25 Furnishings R66 Maintenance Manual SEP 2012...
Page 264: ...Intentionally Blank Page 25 12 Chapter 25 Furnishings R66 Maintenance Manual 25 OCT 2010...
Page 266: ...Intentionally Blank Page 28 ii Chapter 28 Fuel System R66 Maintenance Manual 25 OCT 2010...
Page 276: ...FIGURE 28 4 FUEL VALVE Page 28 10 Chapter 28 Fuel System R66 Maintenance Manual 25 OCT 2010...
Page 280: ...Intentionally Blank Page 32 ii Chapter 32 Landing Gear R66 Maintenance Manual SEP 2012...
Page 306: ...Intentionally Blank Page 52 ii Chapter 52 Doors and Windows R66 Maintenance Manual 25 OCT 2010...
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Page 320: ...Intentionally Blank Page 53 ii Chapter 53 Fuselage R66 Maintenance Manual 25 OCT 2010...
Page 326: ...FIGURE 53 2 LOWER FRAMES Page 53 6 Chapter 53 Fuselage R66 Maintenance Manual 25 OCT 2010...
Page 344: ...Intentionally Blank Page 62 ii Chapter 62 Main Rotor R66 Maintenance Manual 25 OCT 2010...
Page 357: ...Intentionally Blank 25 OCT 2010 R66 Maintenance Manual Chapter 62 Main Rotor Page 62 13...
Page 388: ...Intentionally Blank Page 64 ii Chapter 64 Tail Rotor R66 Maintenance Manual 25 OCT 2010...
Page 402: ...Intentionally Blank Page 64 14 Chapter 64 Tail Rotor R66 Maintenance Manual 25 OCT 2010...
Page 418: ...Intentionally Blank Page 67 ii Chapter 67 Flight Controls R66 Maintenance Manual MAR 2012...
Page 446: ...Intentionally Blank Page 71 ii Chapter 71 Powerplant R66 Maintenance Manual SEP 2012...
Page 448: ...Page 71 2 Chapter 71 Powerplant R66 Maintenance Manual SEP 2012 FIGURE 71 1 ENGINE RIGHT SIDE...
Page 450: ...Page 71 4 Chapter 71 Powerplant R66 Maintenance Manual SEP 2012 FIGURE 71 2 ENGINE LEFT SIDE...
Page 456: ...FIGURE 71 3 INDUCTION Page 71 10 Chapter 71 Powerplant R66 Maintenance Manual SEP 2012...
Page 459: ...Intentionally Blank SEP 2012 R66 Maintenance Manual Chapter 71 Powerplant Page 71 13...
Page 460: ...FIGURE 71 4 EXHAUST Page 71 14 Chapter 71 Powerplant R66 Maintenance Manual SEP 2012...
Page 464: ...Intentionally Blank Page 71 18 Chapter 71 Powerplant R66 Maintenance Manual SEP 2012...
Page 468: ...Intentionally Blank Page 75 2 Chapter 75 Engine Air Systems R66 Maintenance Manual 25 OCT 2010...
Page 470: ...Intentionally Blank Page 76 ii Chapter 76 Engine Controls R66 Maintenance Manual 25 OCT 2010...
Page 478: ...Intentionally Blank Page 76 8 Chapter 76 Engine Controls R66 Maintenance Manual 25 OCT 2010...
Page 480: ...Intentionally Blank Page 79 ii Chapter 79 Engine Oil System R66 Maintenance Manual SEP 2012...
Page 490: ...Intentionally Blank Page 95 ii Chapter 95 Instrument System R66 Maintenance Manual 25 OCT 2010...
Page 498: ...Intentionally Blank Page 95 8 Chapter 95 Instrument System R66 Maintenance Manual 25 OCT 2010...
Page 500: ...Intentionally Blank Page 96 ii Chapter 96 Electrical System R66 Maintenance Manual SEP 2012...
Page 512: ...Intentionally Blank Page 96 12 Chapter 96 Electrical System R66 Maintenance Manual SEP 2012...
Page 514: ...Intentionally Blank Page 98 ii Chapter 98 Wiring Diagrams R66 Maintenance Manual SEP 2012...
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Page 528: ...Intentionally Blank Page 99 ii Chapter 99 Special Tools R66 Maintenance Manual 25 OCT 2010...
Page 532: ...FIGURE 99 2 SPECIAL TOOLS Page 99 4 Chapter 99 Special Tools R66 Maintenance Manual SEP 2012...
Page 534: ...Page 99 6 Chapter 99 Special Tools R66 Maintenance Manual SEP 2012 FIGURE 99 3 SPECIAL TOOLS...
Page 536: ...Intentionally Blank Page 100 ii Chapter 100 Revision Log R66 Maintenance Manual SEP 2012...