Robinson R66 - Page 77

5-45 100-Hour / Annual Inspection (continued)
ENGINE
Refer to RR300 Series OMM, and applicable engine component manufacturer’s maintenance
publications for service and inspection procedures.
Additional service and inspection intervals are specied in § 5-20.
NOTE
For engine-related matters, if there is a conflict between this
manual and Rolls-Royce instructions, Rolls-Royce instructions
take precedence. Notify RHC of discrepancy.
Inlet Plenum and Filter Bypass Indication:
Inspect plenum condition. Verify no foreign object debris or loose items. Turn
battery switch on. Verify annunciator panel warning segment illuminates when
bypass doors are opened individually, then simultaneously. Turn battery switch off.
Standard (Foam) Air Filter Assembly:
Inspect condition. Verify no tears, punctures, or damage to filter media or cage
assembly; verify no corrosion, cracks, or distortion to filter assembly components.
Service filter as required per § 71-21, Part D. Verify proper installation and security.
Inlet Barrier Filter (if installed):
Inspect condition. Verify no tears, punctures, or damage to filter media or cage
assembly; verify no corrosion, cracks, or distortion to filter assembly components.
Service or replace filter assemblies as required per § 71-21, Part E. Note indication
on filter maintenance aid. Verify proper installation and security.
Engine Hoses:
Inspect condition. Verify no rips, holes, or collapsed areas. Verify proper installation
and security.
Exhaust Pipe:
Inspect condition. Verify no cracks (illuminating exterior with bright light while
viewing interior facilitates crack detection). Inspect condition and security of F173-1
struts. Inspect condition and security of gearbox vent and clamps.
Starter-Generator & Wiring:
Inspect condition. Verify no loose, chafed, frayed, or broken wires. Verify no
damaged connectors. Verify neatness, proper routing and installation, and security.
Engine Oil and Oil Filter:
Add oil as required per R66 POH Section 8. Change oil and oil filter as required per
RR300 OMM. Verify filter security.
JUL 2020 Chapter 5 Inspections Page 5.27