Sand Point Airport
Aircraft Accident/Incident Report

Sand Point, Alaska 99661
Friday, June 2, 1995 19:40 AKD

NTSB Narrative Summary Released at Completion of Accident

THE PILOT REPORTED HE HAD LANDED THE 29' TUNDRA TIRE EQUIPPED TAIL WHEEL AIRPLANE ON THE HARD SURFACED RUNWAY AND WAS SLOWING TO TAXI SPEED WHEN THE AIRPLANE SUDDENLY VEERED TO THE RIGHT. HE APPLIED FULL LEFT BRAKE AND RUDDER, BUT WAS UNABLE TO STRAIGHTEN THE AIRPLANE BEFORE THE LEFT MAIN LANDING GEAR COLLAPSED. SUBSEQUENT EXAMINATION OF THE TAILWHEEL STEERING MECHANISM FOUND THE ANTI-CASTORING LIMITS WERE BELOW THE MANUFACTURER'S RECOMMENDED BREAK FREE FORCE, WHICH ALLOWED THE AIRPLANE TO TURN FASTER AND MORE FREELY TO THE RIGHT THAN COMMANDED BY THE RUDDER CONTROL INPUTS. CONVERSATIONS WITH PILOTS WHO HAVE EXTENSIVE EXPERIENCE WITH TUNDRA TIRES DISCLOSED THAT AIRPLANES SO EQUIPPED ARE MUCH MORE DIFFICULT TO HANDLE ON HARD SURFACED RUNWAYS THAN AIRPLANES WITH CONVENTIONAL TIRES.

NTSB Probable Cause Narrative

The premature castoring of the tailwheel steering mechanism. A factor associated the accident is the added degree of difficulty in handling airplanes equipped with oversize 'tundra' tires.

Event Information

Type of Event Accident
Event Date 6/2/1995
Event Day of the Week Friday
Time of Event 1940
Event Time Zone --
Event City SAND POINT
Event State ALASKA
Event Country --
Zipcode of the event site 99661
Event Date Year 1995
Event Date Month 6
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport SAND POINT
Event Location Nearest Airport ID SDP
Indicates whether the acc/inc occurred off or on an airport On Airport
Distance from airport in statute miles --
Degrees magnetic from airport --
Airport Elevation 21
Weather Briefing Completeness Unknown
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 2500
Sky/Lowest/Cloud Conditions Scattered
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 20
Air Temperature at event time (in degrees celsius) 10
Dew Point at event time (in degress fahrenheit) --
Wind Direction (degrees magnetic) 310
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) --
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) 707
NTSB Notification Source --
NTSB Notification Date Jun 8 1995 12:00AM
NTSB Notification Time 1000
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Dec 7 2000 4:19PM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N125FG
NTSB Number ANC95TA067
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 PIPER
Aircraft Model PA-18-150
Aircraft Series Identifier PA-18-150
Aircraft Serial Number 317482
Certified Max Gross Weight 1750
Aircraft Category Airplane
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 May 17 1995 12:00AM
Airframe hours since last inspection 58
Airframe Hours 5382
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name STATE OF ALASKA
Aircraft Owner Street Address 211 MISSION RD.
Aircraft Owner City KODIAK
Aircraft Owner State AK
Aircraft Owner Country
Aircraft Owner Zipcode 99615
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) Unknown
Second Pilot on Board No
Departure Point Same as Event No
Departure Airport Code
Departure City PORT MOLLER
Departure State AK
Departure Country
Departure Time 1900
Departure Time Zone ADT
Destination Same as Local Flt crash at destination city
Destination Airport Code SDP
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 10:34AM
User who most recently changed record dbo
Since inspection or accident --
Event Location Runway Number and Location 31
Runway Length 4000
Runway Width 150
Sight Seeing flight No
Air Medical Flight No
Medical Flight --