Robinson R66 - 2000-Hour;12-Year Inspection

JUL 2020 Chapter 5 Inspections Page 5.39
5-50 2000-Hour/12-Year Inspection
NOTE
Fuel bladder(s) are on condition.
NOTE
KI-6602 2000-Hour Inspection Kit contents are available online
at www.robinsonheli.com for review.
NOTE
12-Year Inspection is only required for helicopters that have
accumulated 12 years in service and less than 2000 hours time
in service since new, since last 2000-hour inspection, or since
last 12-year inspection.
1. Refer to helicopter maintenance records and § 4-30; replace life-limited parts, or next
higher assemblies, as required.
2. Refer to helicopter maintenance records and § 1-92; perform additional component
maintenance, as required.
3. Visually inspect stabilizers. Verify no cracks, corrosion, loose rivets, dents, or
deformation.
4. Remove fuel bladder(s) per Chapter 28. Visually inspect interior and exterior. Verify
no corrosion, residue, microbial growth, or damage to fabric. Visually inspect adjacent
structure for evidence of bladder leakage. Replace roll-over vent valve o-rings and packings
per § 28-11. Remove any foreign object debris. Install bladder(s) per Chapter 28.
5. Perform (engine driveline) forward flex plate shimming per § 63-11 and (tail rotor
driveline) intermediate flex plate shimming per § 65-30.
6. Fill and bleed hydraulic system per § 12-34 as required.
7. Drain engine oil per § 12-60; utilize a suitable clean container if reuse of oil is intended.
Using a borescope or remote camera, inspect oil tank internal baffle and welds for signs
of cracking. If cracks are detected, or if a broken baffle is found, replace oil tank per §
79-20. Add engine oil per § 12-60.
8. Perform main rotor flight control and blade angle rigging per §§ 18-30 and 18-40.
9. Perform tail rotor flight control and blade rigging per §§ 18-50 and 18-60.
10. If installed, perform leak check of air conditioning system per § 12-83.
11. Perform 100-Hour / Annual Maintenance and Inspection per § 5-45.
12. Weigh helicopter per § 8-20.