Aircraft Accident/Incident Report

Buckeye, Arizona 85326
Tuesady, August 1, 2006 16:30 PDT

NTSB Narrative Summary Released at Completion of Accident

The pilot reported that the pin that secured the control stick to the elevator control system came out, the control stick disconnected from elevator control rods, and he lost elevator authority. The pilot conducted a forced landing in an alfalfa field and the nose landing gear collapsed when it encountered the field's border. The airplane underwent its last annual inspection 34.5 hours prior to the accident. At the time of the last inspection the airframe and flight controls were lubricated.

NTSB Probable Cause Narrative

the in-flight separation of the control stick. A contributing factor was the rough terrain for the forced landing, which resulted in a collapsed landing gear.

Event Information

Type of Event Accident
Event Date 8/1/2006
Event Day of the Week Tuesday
Time of Event 1630
Event Time Zone Pacific Daylight Time
Event City Buckeye
Event State ARIZONA
Event Country --
Zipcode of the event site 85326
Event Date Year 2006
Event Date Month 8
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 332600N
Event Location Longitude 1124100W
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) --
Dew Point at event time (in degress fahrenheit) --
Wind Direction (degrees magnetic) --
Variable Wind Indicator --
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 1
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 20750
NTSB Notification Source FAA
NTSB Notification Date --
NTSB Notification Time --
Fiche Number and/or location -used to find docket information DMS
Date of most recent change to record Dec 28 2006 9:08AM
User who most recently changed record NTSB\johb
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N28332
NTSB Number LAX06CA276
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 Interstate
Aircraft Model S-1A
Aircraft Series Identifier --
Aircraft Serial Number 20
Certified Max Gross Weight --
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 Aug 1 2005 12:00AM
Airframe hours since last inspection 34.5
Airframe Hours 3959
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name Wilbert Penfold
Aircraft Owner Street Address --
Aircraft Owner City Dorena
Aircraft Owner State OR
Aircraft Owner Country USA
Aircraft Owner Zipcode 97434
Operator is an individual? No
Operator Name Jack C. Gable
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address --
Operator City Buckeye
Operator State AZ
Operator Country USA
Operator Zip code 85326
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 BXK
Departure City Buckeye
Departure State AZ
Departure Country USA
Departure Time 1625
Departure Time Zone --
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 Emergency landing
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Oct 6 2006 4:18PM
User who most recently changed record COOS
Since inspection or accident Time of Accident
Event Location Runway Number and Location --
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --