Aircraft Accident/Incident Report

Nikolski, Alaska 99638
Monday, October 29, 2007 19:00 AKD

NTSB Narrative Summary Released at Completion of Accident

The solo commercial certificated pilot was conducting a low pass over a beach looking for an appropriate landing spot for the helicopter under Title 14, CFR Part 91, when the accident occurred. In a written statement, the pilot reported he was making a low pass over the landing area when a sudden gust of wind caused the helicopter to pitch up, and the tail rotor struck an unknown object. He reported that the helicopter yawed to the right, descended, and the skid struck the ground. According to the pilot, the helicopter came to rest upright, but sustained damage to the main rotor system, tail cone, and rotor mast, in addition to the tail rotor. He reported there were no known mechanical problems with the helicopter prior to the accident.

NTSB Probable Cause Narrative

The pilot's inadequate compensation for wind gusts while maneuvering, which resulted in the tail rotor striking an undetermined object, and an emergency descent and landing. Factors contributing to the accident were the wind gusts, and the failure of the tail rotor system.

Event Information

Type of Event Accident
Event Date 10/29/2007
Event Day of the Week Monday
Time of Event 1900
Event Time Zone --
Event City Nikolski
Event State ALASKA
Event Country --
Zipcode of the event site 99638
Event Date Year 2007
Event Date Month 10
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 532112N
Event Location Longitude 1681424W
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 --
Investigator's weather source Pilot
Time of the weather observation
Direction of event from weather observation facility (degrees) --
Weather Observation Facility ID --
Elevation of weather observation facility --
Distance of event from weather observation facility (units?) --
Time Zone of the weather observation --
Lighting Conditions Day
Lowest Ceiling Height 5000
Lowest Non-Ceiling Height 1500
Sky/Lowest/Cloud Conditions Scattered
Sky Condition for Lowest Ceiling Broken
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) 20
Air Temperature at event time (in degrees celsius) 9
Dew Point at event time (in degress fahrenheit) --
Wind Direction (degrees magnetic) 270
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 20
Wind Velocity Indicator --
Wind Gust Indicator Gusting
Wind Gust (knots) 30
Altimeter Setting at event time (in. Hg) 29.28
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report --
Event Highest Injury None
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries --
Injury Total Fatal --
Injury Total Minor --
Injury Total None 1
Injury Total Serious --
Injury Total All --
Investigating Agency --
NTSB Docket Number (internal use) 22877
NTSB Notification Source Operator
NTSB Notification Date --
NTSB Notification Time --
Fiche Number and/or location -used to find docket information DMS
Date of most recent change to record Jan 30 2008 4:08PM
User who most recently changed record NTSB\johb
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N185MH
NTSB Number ANC08CA011
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
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 --
Aircraft Serial Number 0976
Certified Max Gross Weight 1370
Aircraft Category Helicopter
Aircraft Registration Class --
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 AAIP
Date of Last Inspection Oct 1 2007 12:00AM
Airframe hours since last inspection --
Airframe Hours 8031
ELT Installed No
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name Bering Pacific Ranches Inc.
Aircraft Owner Street Address --
Aircraft Owner City Unalaska
Aircraft Owner State AK
Aircraft Owner Country USA
Aircraft Owner Zipcode 99685
Operator is an individual? No
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? --
Certified for Part 133 or 137 Operation --
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) Other Work Use
Second Pilot on Board No
Departure Point Same as Event Yes
Departure Airport Code --
Departure City Nikolski
Departure State AK
Departure Country USA
Departure Time --
Departure Time Zone ADT
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 - flare/touchdown
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Nov 20 2007 5:26PM
User who most recently changed record LABJ
Since inspection or accident Time of Accident
Event Location Runway Number and Location NA
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --