Aircraft Accident/Incident Report

Whittier, Alaska 99693
Tuesady, August 2, 1994 14:30 AKD

NTSB Narrative Summary Released at Completion of Accident

THE PILOT ENTERED AN OUT OF GROUND EFFECT HOVER OVER A RAVINE DUE TO DETERIORATING WEATHER. THE HELICOPTER BEGAN TO SETTLE AND HE APPLIED FULL THROTTLE AND ATTEMPTED TO MAINTAIN ALTITUDE WITH COLLECTIVE. THE ROTOR RPM BEGAN TO DECAY AND HE ATTEMPTED TO ACCELERATE TO ATTAIN TRANSLATIONAL LIFT. HE DID NOT HAVE SUFFICIENT ALTITUDE IN WHICH TO RECOVER SO HE ATTEMPTED TO LAND IN THE BOTTOM OF THE RAVINE. DURING THE DESCENT THE ROTOR BLADES STRUCK THE RAVINE'S WALLS. THE PILOT NOTED A 3 TO 4 KNOT TAILWIND AFTER THE CRASH.

NTSB Probable Cause Narrative

THE PILOT'S FAILURE TO MAINTAIN ROTOR RPM. FACTORS WERE THE RAVINE AND THE TAILWIND.

Event Information

Type of Event Accident
Event Date 8/2/1994
Event Day of the Week Tuesday
Time of Event 1430
Event Time Zone --
Event City WHITTIER
Event State ALASKA
Event Country --
Zipcode of the event site 99693
Event Date Year 1994
Event Date Month 8
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 Partial - limited by pilot
Investigator's weather source Unknown
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 100
Lowest Non-Ceiling Height 0
Sky/Lowest/Cloud Conditions Unknown
Sky Condition for Lowest Ceiling Obscured
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 0.25
Air Temperature at event time (in degrees celsius) 11
Dew Point at event time (in degress fahrenheit) --
Wind Direction (degrees magnetic) 0
Variable Wind Indicator Variable
Wind Speed (knots) 0
Wind Velocity Indicator Light and Variable
Wind Gust Indicator Unknown
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) --
Density Altitude (feet) --
Intensity of Precipitation Light
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) 1568
NTSB Notification Source --
NTSB Notification Date Aug 2 1994 12:00AM
NTSB Notification Time 2200
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Dec 6 2000 11:55AM
User who most recently changed record dbo
Basic weather conditions Instrument Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N2622M
NTSB Number ANC94LA096
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed VFR
Flight plan Was Activated? --
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name ROBINSON
Aircraft Model R-22
Aircraft Series Identifier R-22
Aircraft Serial Number 735M
Certified Max Gross Weight 1370
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 2
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Jun 10 1993 12:00AM
Airframe hours since last inspection 413
Airframe Hours 2492
ELT Installed Yes
ELT Activated Yes
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name DONALD ROSS
Aircraft Owner Street Address P.O. BOX 8595
Aircraft Owner City KETCHIKAN
Aircraft Owner State AK
Aircraft Owner Country
Aircraft Owner Zipcode 99901
Operator is an individual? --
Operator Name POLLUX AVIATION, LTD
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address 1740 E 5TH AVE
Operator City ANCHORAGE
Operator State AK
Operator Country
Operator Zip code 99501
Operator Code UPXC
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 --
Indicates Domestic or International Flight --
Operator carrying Pax/Cargo/Mail --
Type of Flying (Per_Bus / Primary) Ferry
Second Pilot on Board No
Departure Point Same as Event No
Departure Airport Code MRI
Departure City ANCHORAGE
Departure State AK
Departure Country
Departure Time 1330
Departure Time Zone ADT
Destination Same as Local Flt --
Destination Airport Code CDV
Destination City CORDOVA
Destination State AK
Destination Country
Specific Phase of Flight Hover
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 --