Aircraft Accident/Incident Report

Girdwood, Alaska 99587
Wednesday, March 17, 1999 10:50 AST

NTSB Narrative Summary Released at Completion of Accident

The commercial pilot reported that the accident helicopter was being utilized to transport skiers to a remote ski area. He added that the day before the accident, the area had received about 6 inches of very light, powder snow. He stated that just before the accident, he transported a group of photographers to the top of the mountain, and he was returning to the base of the mountain to pick up the next group of skiers. He said that as the helicopter hovered toward the landing area, he became disoriented in whiteout conditions, and lost all visual reference due to blowing snow. He said the helicopter drifted to the right, the right skid struck the snow, and the helicopter rolled onto its right side. The helicopter sustained substantial damage to the fuselage, tail boom, and drive train components.

NTSB Probable Cause Narrative

The pilot's misjudged flare while landing. Factors associated with the accident were whiteout conditions, and snow-covered terrain.

Event Information

Type of Event Accident
Event Date 3/17/1999
Event Day of the Week Wednesday
Time of Event 1050
Event Time Zone Atlantic Standard Time
Event City GIRDWOOD
Event State ALASKA
Event Country --
Zipcode of the event site 99587
Event Date Year 1999
Event Date Month 3
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport
Event Location Nearest Airport ID
Indicates whether the acc/inc occurred off or on an airport Off Airport/Airstrip
Distance from airport in statute miles --
Degrees magnetic from airport --
Airport Elevation --
Weather Briefing Completeness Unknown
Investigator's weather source Pilot
Time of the weather observation 0
Direction of event from weather observation facility (degrees) 0
Weather Observation Facility ID
Elevation of weather observation facility 0
Distance of event from weather observation facility (units?) 0
Time Zone of the weather observation
Lighting Conditions Day
Lowest Ceiling Height 0
Lowest Non-Ceiling Height 0
Sky/Lowest/Cloud Conditions Clear
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 30
Air Temperature at event time (in degrees celsius) 2
Dew Point at event time (in degress fahrenheit) --
Wind Direction (degrees magnetic) 0
Variable Wind Indicator Unknown
Wind Speed (knots) 0
Wind Velocity Indicator Calm
Wind Gust Indicator Unknown
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 29
Density Altitude (feet) --
Intensity of Precipitation Unknown
METAR weather report --
Event Highest Injury None
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal --
Injury Total Minor --
Injury Total None 1
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 169
NTSB Notification Source --
NTSB Notification Date Mar 17 1999 12:00AM
NTSB Notification Time 1150
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Dec 12 2000 11:26AM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N197EH
NTSB Number ANC99LA036
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 135: Air Taxi & Commuter
Type of Flight Plan filed Company VFR
Flight plan Was Activated? --
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name Eurocopter
Aircraft Model AS-350-B2
Aircraft Series Identifier AS-350-B2
Aircraft Serial Number 2983
Certified Max Gross Weight 4961
Aircraft Category Helicopter
Aircraft Registration Class U.S. Registered/U.S. Soil
Aircraft is a homebuilt? No
Flight Crew Seats --
Cabin Crew Seats --
Passenger Seats --
Total number of seats on the aircraft 6
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection AAIP
Date of Last Inspection Apr 24 1999 12:00AM
Airframe hours since last inspection 21
Airframe Hours 796
ELT Installed Unknown
ELT Activated Unknown
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name ERA AVIATION, INC.
Aircraft Owner Street Address 6160 CARL BRADY DRIVE
Aircraft Owner City ANCHORAGE
Aircraft Owner State AK
Aircraft Owner Country
Aircraft Owner Zipcode 99502
Operator is an individual? --
Operator Name
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address
Operator City
Operator State
Operator Country
Operator Zip code
Operator Code ERAA
Owner has at least one certificate Yes - certificate holder
Other Operator of large aircraft? No
Certified for Part 133 or 137 Operation Unknown
Operator Certificate Number --
Indicates whether an air carrier operation was scheduled or not Non-scheduled
Indicates Domestic or International Flight Domestic
Operator carrying Pax/Cargo/Mail Passenger Only
Type of Flying (Per_Bus / Primary) Unknown
Second Pilot on Board No
Departure Point Same as Event Yes
Departure Airport Code AQY
Departure City
Departure State AK
Departure Country
Departure Time 810
Departure Time Zone AST
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code
Destination City
Destination State
Destination Country
Specific Phase of Flight Landing
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 2 2001 10:34AM
User who most recently changed record dbo
Since inspection or accident --
Event Location Runway Number and Location 0
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --