Wasilla Airport
Aircraft Accident/Incident Report

Wasilla, Alaska 99687
Wednesday, April 27, 2005 19:30 AKD

NTSB Narrative Summary Released at Completion of Accident

The private pilot was landing his tundra-tire equipped tailwheel airplane at the conclusion of a 14 CFR Part 91 personal flight on a non-maintained dirt overrun of a hard-surfaced runway. During the landing roll, the tires encountered deep ruts and soft dirt, and the pilot stated that he was unable to maintain directional control. He indicated that the right brake felt flat and ineffective, and may have contributed to his difficulty in maintaining control. An aviation mechanic who repaired the airplane after the accident noted that the brake assembly had a slow fluid leak, and the braking action may have been diminished at the time of the accident. The mechanic said he replaced portions of the right brake assembly while repairing the airplane.

NTSB Probable Cause Narrative

The pilot's selection of an unsuitable landing area, which resulted in a loss of control during the landing roll, and a collision with a ditch. A factor associated with the airplane was a leaking brake assembly and diminished braking efficiency.

Event Information

Type of Event Accident
Event Date 4/27/2005
Event Day of the Week Wednesday
Time of Event 1930
Event Time Zone --
Event City Wasilla
Event State ALASKA
Event Country --
Zipcode of the event site 99687
Event Date Year 2005
Event Date Month 4
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 613418N
Event Location Longitude 1493225W
Event Location Airport Wasilla
Event Location Nearest Airport ID PAWS
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 354
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) 50
Air Temperature at event time (in degrees celsius) 18
Dew Point at event time (in degress fahrenheit) --
Wind Direction (degrees magnetic) 211
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 7
Wind Velocity Indicator --
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 1
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 18865
NTSB Notification Source Pilot
NTSB Notification Date Apr 29 2005 12:00AM
NTSB Notification Time 845
Fiche Number and/or location -used to find docket information DMS
Date of most recent change to record Jan 31 2006 7:35AM
User who most recently changed record NTSB\JOHB
Basic weather conditions Visual Meteorological Cond
FAA District Office Anchorage

Aircraft Involved

Aircraft #1

Aircraft Registration Number N624MW
NTSB Number ANC05LA065
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 Piper
Aircraft Model PA-18-160
Aircraft Series Identifier --
Aircraft Serial Number 18-8739
Certified Max Gross Weight 1750
Aircraft Category Airplane
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 Annual
Date of Last Inspection Jul 1 2005 12:00AM
Airframe hours since last inspection 62
Airframe Hours 1844
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name Thomas F. Watkins
Aircraft Owner Street Address --
Aircraft Owner City Wasilla
Aircraft Owner State AK
Aircraft Owner Country USA
Aircraft Owner Zipcode --
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) Personal
Second Pilot on Board No
Departure Point Same as Event Yes
Departure Airport Code PAWS
Departure City Wasilla
Departure State AK
Departure Country USA
Departure Time 1700
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 - roll
Report sent to ICAO? No
Evacuation occurred No
Date of most recent change to record Oct 31 2005 3:33PM
User who most recently changed record PETL
Since inspection or accident Last Inspection
Event Location Runway Number and Location NA
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --