Aircraft Accident/Incident Report

Snohomish, Washington 98290
Thursday, July 24, 2003 12:15 PDT

NTSB Narrative Summary Released at Completion of Accident

The student was executing a practice power-off autorotation, and during the go-around from the simulated landing flare he applied too much aft cyclic. The instructor, who was simultaneously applying a small amount of up collective to arrest a slight sink, did not take adequate remedial action to keep the student (who is a high-time fixed wing pilot) from applying too much aft cyclic. This resulted in the tail rotor of the helicopter impacting the ground, followed immediately by a loss of tail rotor effectiveness. Soon thereafter, the helicopter began to spin, and the instructor pilot took over total control and executed an emergency landing. After the aircraft's engine was shut down, it was determined that there was damage to both the tail rotor and tail boom.

NTSB Probable Cause Narrative

The dual students failure to maintain clearance from the terrain during the go-around from a simulated autorotational flare, and the instructor pilot's failure to take adequate remedial action to keep the dual student from allowing the aircraft to impact the terrain.

Event Information

Type of Event Accident
Event Date 7/24/2003
Event Day of the Week Thursday
Time of Event 1215
Event Time Zone Pacific Daylight Time
Event City Snohomish
Event State WASHINGTON
Event Country --
Zipcode of the event site 98290
Event Date Year 2003
Event Date Month 7
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 475429N
Event Location Longitude 1220619W
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 --
Lowest Non-Ceiling Height --
Sky/Lowest/Cloud Conditions Clear
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) 10
Air Temperature at event time (in degrees celsius) 18
Dew Point at event time (in degress fahrenheit) --
Wind Direction (degrees magnetic) --
Variable Wind Indicator Variable
Wind Speed (knots) --
Wind Velocity Indicator Light and Variable
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) --
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 2
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 15788
NTSB Notification Source FAA Operations Center
NTSB Notification Date Jul 24 2003 12:00AM
NTSB Notification Time 1340
Fiche Number and/or location -used to find docket information DMS
Date of most recent change to record Jun 30 2004 12:15PM
User who most recently changed record NTSB\MONR
Basic weather conditions Visual Meteorological Cond
FAA District Office Seattle FSDO

Aircraft Involved

Aircraft #1

Aircraft Registration Number N53KF
NTSB Number SEA03LA151
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? No
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name Hughes
Aircraft Model 269C
Aircraft Series Identifier --
Aircraft Serial Number 51738
Certified Max Gross Weight 2050
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 15 2003 12:00AM
Airframe hours since last inspection 61
Airframe Hours --
ELT Installed No
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name Snohomish Flying Service
Aircraft Owner Street Address Harvey Field
Aircraft Owner City Snohomish
Aircraft Owner State WA
Aircraft Owner Country USA
Aircraft Owner Zipcode 98290
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) Instructional
Second Pilot on Board Yes
Departure Point Same as Event No
Departure Airport Code S43
Departure City Snohomish
Departure State WA
Departure Country USA
Departure Time 1115
Departure Time Zone PDT
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code S43
Destination City --
Destination State --
Destination Country --
Specific Phase of Flight Landing - flare/touchdown
Report sent to ICAO? No
Evacuation occurred No
Date of most recent change to record May 3 2004 1:31PM
User who most recently changed record STAM
Since inspection or accident --
Event Location Runway Number and Location --
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --