Loss of Main Rotor Control Helicopter Accidents.
Special investigation of accidents involving loss of main rotor control in the R-22 was prompted, in part by a fatal accident that occurred during an instructional flight near Richmond, California.
The flight instructor had 2,000 hours in the R-22, and the student had 4 hours. The helicopter was being operated at normal rotor RPM, within the approved flight envelope.
Contents:
- Executive Summary
- Introduction
- The R22 Design
- General Description
- Flight Control System
- Main Rotor System
- Flight Control Responsiveness
- Original Certification
- Recent Robinson Helicopter Company Design Changes
- Accident Data and Accident Investigation Revew
- Characteristics of Accidents Involving Loss of Main Rotor Control
- Accident Investigation Review
- Faa Oversight
- Certification Reviews
- Recent FAA Actions
- Flight Testing of the R22 and R44
- Summary Discussion
- Findings
- Recommendations
- Summary Reports of R22 Loss of Main Rotor Control Accidents
- Summary Reports of R44 Loss of Main Rotor Control Accidents
- Main Rotor Hub Teeter Angle and RPM Decay Survey
- Applicable Safety Recommendations and Related Correspondence
Soft Cover 116 Pages.
