South County Airport
Aircraft Accident/Incident Report

San Martin, California 95046
Friday, August 29, 1997 15:10 PDT

NTSB Narrative Summary Released at Completion of Accident

The pilot was conducting a post-maintenance check flight of the aircraft following an annual inspection completed the prior day. During repairs associated with the annual inspection, the three engine control cables were replaced. While in cruise flight the engine lost power and the pilot attempted to glide to an emergency landing. He overshot the 3,100-foot-long runway and went off the departure end. When the engine was uncowled, the bolt which connects the throttle control to the throttle body actuator arm was missing. The bolt was found in the bottom of the cowling, but the nut was not located. The bolt did not comply with an applicable Airworthiness Directive. The pilot opined that after the throttle control separated, the engine may not have gone completely to the idle power position and the resulting partial engine power may have contributed to the landing overshoot. The pilot stated that he was wearing a headset and could not hear the engine well enough to detect a partial power condition.

NTSB Probable Cause Narrative

Installation of improper connecting hardware by maintenance personnel, and, the inadequate inspection of the installed hardware by inspection personnel resulting in separation of the engine throttle linkage.

Event Information

Type of Event Accident
Event Date 8/29/1997
Event Day of the Week Friday
Time of Event 1510
Event Time Zone Pacific Daylight Time
Event City SAN MARTIN
Event State CALIFORNIA
Event Country --
Zipcode of the event site 95046
Event Date Year 1997
Event Date Month 8
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport SOUTH COUNTY
Event Location Nearest Airport ID Q99
Indicates whether the acc/inc occurred off or on an airport On Airport
Distance from airport in statute miles 1
Degrees magnetic from airport 320
Airport Elevation 281
Weather Briefing Completeness Not pertinent
Investigator's weather source Weather Observation Facility
Time of the weather observation 1455 Pacific Daylight Time
Direction of event from weather observation facility (degrees) 24
Weather Observation Facility ID SJC
Elevation of weather observation facility 58
Distance of event from weather observation facility (units?) 300
Time Zone of the weather observation PDT
Lighting Conditions Day
Lowest Ceiling Height 0
Lowest Non-Ceiling Height 0
Sky/Lowest/Cloud Conditions Clear
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 40
Air Temperature at event time (in degrees celsius) 26
Dew Point at event time (in degress fahrenheit) 11
Wind Direction (degrees magnetic) 330
Variable Wind Indicator Unknown
Wind Speed (knots) 12
Wind Velocity Indicator Unknown
Wind Gust Indicator Not Gusting
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 29
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 1
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 587
NTSB Notification Source --
NTSB Notification Date Aug 29 1907 12:00AM
NTSB Notification Time 1640
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Dec 8 2000 12:30PM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N761HQ
NTSB Number LAX97LA307
Missing Aircraft Indicator N
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 Cessna
Aircraft Model T210M
Aircraft Series Identifier T210M
Aircraft Serial Number 21062273
Certified Max Gross Weight 3800
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 6
Number of Engines 1
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Aug 28 1997 12:00AM
Airframe hours since last inspection 1
Airframe Hours 2680
ELT Installed Yes
ELT Activated Unknown
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name SQUADRON TWO FLYING CLUB INC.
Aircraft Owner Street Address 1101 AIRPORT BLVD
Aircraft Owner City SAN JOSE
Aircraft Owner State CA
Aircraft Owner Country
Aircraft Owner Zipcode 95110
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 SJC
Departure City SAN JOSE
Departure State CA
Departure Country
Departure Time 1430
Departure Time Zone PDT
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 Cruise
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 32
Runway Length 3100
Runway Width 75
Sight Seeing flight No
Air Medical Flight No
Medical Flight --