Aircraft Accident/Incident Report

Anchorage, Alaska 99501
Tuesady, February 14, 1984 16:40 YST

NTSB Narrative Summary Released at Completion of Accident

THE ACFT TAIL ROTOR STRUCK SNOW DURING AN AUTOROTATIVE LANDING FOLLOWING AN ENG FAILURE. THE SNOW DEPTH VARIED BETWEEN 32 & 45 INCHES. EXAMINATION OF THE ENG REVEALED THAT THE RT HAND MAG WAS FIRING INTERMITTENTLY ON TWO OF THE SIX DISTRIBUTOR CONTACTS WHICH WERE GAPPED CLOSER THAN THE PRESCRIBED MINIMUM.

NTSB Probable Cause Narrative

Not Yet Reported

Event Information

Type of Event Incident
Event Date 2/14/1984
Event Day of the Week Tuesday
Time of Event 1640
Event Time Zone Yukon Standard Time
Event City ANCHORAGE
Event State ALASKA
Event Country --
Zipcode of the event site 99501
Event Date Year 1984
Event Date Month 2
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 0
Degrees magnetic from airport 0
Airport Elevation 160
Weather Briefing Completeness Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 1555 Yukon Standard Time
Direction of event from weather observation facility (degrees) 265
Weather Observation Facility ID ANC
Elevation of weather observation facility 144
Distance of event from weather observation facility (units?) 2
Time Zone of the weather observation YST
Lighting Conditions Dusk
Lowest Ceiling Height 13000
Lowest Non-Ceiling Height 4000
Sky/Lowest/Cloud Conditions Scattered
Sky Condition for Lowest Ceiling Broken
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 60
Air Temperature at event time (in degrees celsius) -6
Dew Point at event time (in degress fahrenheit) -11
Wind Direction (degrees magnetic) 0
Variable Wind Indicator Unknown
Wind Speed (knots) 0
Wind Velocity Indicator Calm
Wind Gust Indicator Not Gusting
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 29
Density Altitude (feet) 0
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) 5007
NTSB Notification Source --
NTSB Notification Date --
NTSB Notification Time 0
Fiche Number and/or location -used to find docket information
Date of most recent change to record Jan 2 2001 9:15AM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N8495E
NTSB Number ANC84IA035
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? --
Damage Minor
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name BELL
Aircraft Model 47G-2A
Aircraft Series Identifier 47G-2A
Aircraft Serial Number 2680
Certified Max Gross Weight 2850
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 3
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Aug 3 1983 12:00AM
Airframe hours since last inspection 90
Airframe Hours 3446
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name LEE CONRAD HOUSTON
Aircraft Owner Street Address 2611 WEST 100TH AVE.
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
Owner has at least one certificate None
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 --
Indicates Domestic or International Flight --
Operator carrying Pax/Cargo/Mail --
Type of Flying (Per_Bus / Primary) Business
Second Pilot on Board No
Departure Point Same as Event No
Departure Airport Code ANC
Departure City ANCHORAGE
Departure State AK
Departure Country
Departure Time 1635
Departure Time Zone YST
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 10:36AM
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 --