Aircraft Accident/Incident Report

Girdwood, Alaska 99587
Saturday, November 11, 2000 13:00 AST

NTSB Narrative Summary Released at Completion of Accident

The airline transport certificated pilot was maneuvering a helicopter over snow-covered terrain along a mountain ridge while conducting a photo flight. The end of the ridge line was in a shadow. While flying in the area of shadow, the pilot began to lose depth perception, and he added engine power to move away from the ridge. The left landing gear skid tube made contact with snow on the ridge, and the pilot felt a vibration. He landed on lower terrain and shut down the helicopter. A subsequent inspection of the helicopter disclosed internal damage to the tail rotor spars, and a torsional twist in the tail rotor drive shaft.

NTSB Probable Cause Narrative

The pilot's failure to maintain adequate altitude/clearance from terrain. A factor in the accident was flat light conditions.

Event Information

Type of Event Accident
Event Date 11/11/2000
Event Day of the Week Saturday
Time of Event 1300
Event Time Zone Atlantic Standard Time
Event City GIRDWOOD
Event State ALASKA
Event Country --
Zipcode of the event site 99587
Event Date Year 2000
Event Date Month 11
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 Not pertinent
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) 10
Air Temperature at event time (in degrees celsius) -2
Dew Point at event time (in degress fahrenheit) --
Wind Direction (degrees magnetic) 240
Variable Wind Indicator Unknown
Wind Speed (knots) 5
Wind Velocity Indicator Unknown
Wind Gust Indicator Not Gusting
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 30
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 2
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 1095
NTSB Notification Source FAA Regional Operations Center
NTSB Notification Date Nov 12 2000 12:00AM
NTSB Notification Time 1118
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Jul 10 2001 4:14PM
User who most recently changed record MONR
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N216EH
NTSB Number ANC01LA020
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-350B2
Aircraft Series Identifier AS-350B2
Aircraft Serial Number 3184
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 Nov 2 2000 12:00AM
Airframe hours since last inspection 8
Airframe Hours 1096
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name ERA AVIATION INC.
Aircraft Owner Street Address 6160 CARL BRADY DR.
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 External Load
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 No
Departure Airport Code AQY
Departure City GIRDWOOD
Departure State AK
Departure Country
Departure Time 1115
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 --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jun 3 2001 4:08AM
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 --