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FAASTeam Notice
Type: Helicopter Operations
Notice Date: Wednesday, August 11, 2021
Notice Number: NOTC1993
USHST Monthly Safety Report - August 2021
This notice expired on
Sunday, September 11, 2022

US Helicopter Safety Team (USHST)

Monthly Safety Report


August 2021


Fatal Accident Rate:  0.72 (+.17) above goal of 0.55 fatal accidents per 100K hrs by 2025


USHST VisionA Civil Helicopter Community with Zero Fatal Accidents


“Safety by the Numbers” (Monthly Metrics):


Days since last Fatal helicopter accident:  19 Days : 22 Hours : 35 Minutes


Fatal Accident Rate (5yr avg)(CY2017-21) 0.72 Fatal Accidents per 100K Flight Hours

Fatal Accident Rate (CY2021) 10 Fatal Accidents per 100K Flight Hours



Loss of Control-Inflight (LOC-I), Unintended Flight into IMC (UIMC), Low Altitude Operations (LALT). 

USHST continues to work on the implementation of 16 Helicopter - Safety Enhancements (H-SE) developed through data-driven analysis of 104 fatal accidents.  The H-SE’s use Outreach, Policy, Technology/Equipment, and Training to reduce fatal accidents in these categories.

H-SE 91: Enhanced Helicopter Vision Systems

Research, develop, and promote the use of enhanced helicopter vision systems (EHVS) technologies (e.g. Night Vision Goggles, Enhanced Vision Systems, Synthetic Vision Systems, Combined Vision Systems, etc.) to assist in recognizing and preventing unplanned flight into degraded visibility conditions due to weather and to increase safety during planned flight at night.


1. FAA to research/evaluate helicopter vision-enhancing technologies and operational concepts for advanced vision systems. This will require communication with existing industry vision system manufacturers to get a well-informed perspective of available technology.

2. FAA to develop policy changes to allow for the use of vision enhancing technologies (Update FAA Order 8260.42B Advisory Circulars 90-80B, 90-106A, and FSIMS 8900.1). Review 14 C.F.R. § 91.175/176 and decide whether a regulatory revision through rulemaking would be necessary for the H-SE to be implemented.

3. Industry and FAA to develop and conduct outreach program to promote use of vision-enhancing technologies.


  US Helicopter Safety Team Press Release (June 1, 2021): 

International Rotorcraft Community Launches Collaborative Safety Program


Helicopter Safety OUTREACH events:

· USHST All-Hands Webinars

Previous All HandsLow Altitude Operations (May 2021)

· HAI Upcoming Events




USHST Facebook (2,262 Members, 22 New)             USHST LinkedIn                      USHST Twitter

To view all USHST Monthly Safety Reports, click on the link below:

For any questions regarding the information within this notice please contact Clarke Pleasants, Program Chair-Rotor, ERAU, at 928-7774730 or email at