Jerome County Airport
Aircraft Accident/Incident Report

Jerome, Idaho 83338
Wednesday, August 15, 2001 17:30 MDT

NTSB Narrative Summary Released at Completion of Accident

The pilot, who had just bought the airplane, reported that after a "perfect" three-point landing, the aircraft began a slow drift to the right. He reported that he applied left rudder pedal to counteract the right drift, with no response. He stated that he then added more left rudder, still with no response. The pilot reported that he then applied left brake, but did not get any braking action. The aircraft subsequently departed the runway at a speed estimated by the pilot at about 35 MPH. The left main landing gear then hit a hole and the aircraft came to rest, nose down, about 25 feet off the right side of the runway near the runway exit point. A post-accident inspection disclosed that the left rudder could deflect about 50 to 55 degrees, with maximum right rudder deflection measured at 30 degrees. Full design rudder travel is 30 degrees in either direction. With the rudder at 50 to 55 degrees, the rudder pedal rests against the firewall, preventing the left brake from being applied. The pilot reported that the aircraft received an annual inspection by the previous owner (a certificated airframe and powerplant mechanic) on the date of sale, in July 2001. Follow-up interviews with the previous owner/mechanic and the accident pilot disclosed that the previous owner/mechanic was aware of an anomaly which prevented braking from being applied with rudder pedal deflected at the time he performed the annual inspection, and that he informed the pilot of this anomaly on the day the sale took place.

NTSB Probable Cause Narrative

The pilot's failure to maintain directional control during landing. Factors included: an incorrectly manufactured or adjusted rudder travel setting, resulting in restricted movement of the left brake; the mechanic's failure to adjust the rudder travel to the correct tolerance; and the pilot's operation of the aircraft with a known equipment deficiency.

Event Information

Type of Event Accident
Event Date 8/15/2001
Event Day of the Week Wednesday
Time of Event 1730
Event Time Zone Mountain Daylight Time
Event City Jerome
Event State IDAHO
Event Country --
Zipcode of the event site 83338
Event Date Year 2001
Event Date Month 8
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude --
Event Location Longitude --
Event Location Airport Jerome County
Event Location Nearest Airport ID JER
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 4048
Weather Briefing Completeness --
Investigator's weather source Weather Observation Facility
Time of the weather observation 1653 Mountain Daylight Time
Direction of event from weather observation facility (degrees) --
Weather Observation Facility ID JER
Elevation of weather observation facility 4048
Distance of event from weather observation facility (units?) --
Time Zone of the weather observation MDT
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) 33
Dew Point at event time (in degress fahrenheit) 10
Wind Direction (degrees magnetic) --
Variable Wind Indicator Variable
Wind Speed (knots) 4
Wind Velocity Indicator --
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 30.03
Density Altitude (feet) 7000
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) 12373
NTSB Notification Source FAA ROC
NTSB Notification Date Aug 15 2001 12:00AM
NTSB Notification Time 1649
Fiche Number and/or location -used to find docket information DMS
Date of most recent change to record Oct 24 2002 3:20PM
User who most recently changed record NTSB\MONR
Basic weather conditions Visual Meteorological Cond
FAA District Office Boise, ID

Aircraft Involved

Aircraft #1

Aircraft Registration Number N8351
NTSB Number SEA01LA151
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 Pitts Special
Aircraft Model SC-1
Aircraft Series Identifier --
Aircraft Serial Number 314F210
Certified Max Gross Weight 800
Aircraft Category Airplane
Aircraft Registration Class U.S. Registered/U.S. Soil
Aircraft is a homebuilt? Yes
Flight Crew Seats --
Cabin Crew Seats --
Passenger Seats --
Total number of seats on the aircraft 1
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Jul 1 2001 12:00AM
Airframe hours since last inspection 15
Airframe Hours 585
ELT Installed Unknown
ELT Activated Unknown
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name Todd J. Therp
Aircraft Owner Street Address --
Aircraft Owner City Idaho Falls
Aircraft Owner State ID
Aircraft Owner Country USA
Aircraft Owner Zipcode 834015249
Operator is an individual? Yes
Operator Name Boyd W. Simmons
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address --
Operator City Bend
Operator State OR
Operator Country USA
Operator Zip code 977018832
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 No
Departure Airport Code U56
Departure City Rigby
Departure State ID
Departure Country USA
Departure Time 1500
Departure Time Zone MDT
Destination Same as Local Flt crash at destination city
Destination Airport Code JER
Destination City Jerome
Destination State ID
Destination Country USA
Specific Phase of Flight Landing - roll
Report sent to ICAO? No
Evacuation occurred No
Date of most recent change to record May 2 2002 6:27PM
User who most recently changed record STAM
Since inspection or accident --
Event Location Runway Number and Location 08
Runway Length 5201
Runway Width 60
Sight Seeing flight No
Air Medical Flight No
Medical Flight --