Petaluma Muni Airport
Aircraft Accident/Incident Report

Petaluma, California 94952
Wednesday, February 14, 2001 12:30 PST

NTSB Narrative Summary Released at Completion of Accident

During landing, the engine lost power. The airplane collided with trees, and made a hard landing in an open dirt field in the ensuing forced landing. On the downwind leg for landing, the pilot lowered the landing gear, and the engine began to run rough. He noted that the landing gear stopped about halfway down. He attempted to add power, but did not receive a corresponding power increase, and set up for an emergency landing. A visual external examination of the engine revealed that the mixture cable was entangled in the nose landing gear. When the landing gear was lowered the mixture cable was pulled out of its sleeve, which allowed the engine to be in a full lean position. Mixture, throttle, and propeller cables were recently installed by the pilot and his two partners. The pilot and his partners were not certificated A & P mechanics, and a certified mechanic had not returned the airplane to service after the cable installation. The last entry in the logbook was made 6 months prior to the accident,.

NTSB Probable Cause Narrative

Failure of non-airframe and powerplant mechanic/certificated owners to properly install a new mixture cable that became entangled in the nose landing gear during its extension for landing, resulting in a loss of engine power.

Event Information

Type of Event Accident
Event Date 2/14/2001
Event Day of the Week Wednesday
Time of Event 1230
Event Time Zone Pacific Standard Time
Event City Petaluma
Event State CALIFORNIA
Event Country --
Zipcode of the event site 94952
Event Date Year 2001
Event Date Month 2
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 381528N
Event Location Longitude 1223619W
Event Location Airport Petaluma Muni
Event Location Nearest Airport ID O69
Indicates whether the acc/inc occurred off or on an airport On Airport
Distance from airport in statute miles 0
Degrees magnetic from airport 0
Airport Elevation 87
Weather Briefing Completeness Not pertinent
Investigator's weather source Weather Observation Facility
Time of the weather observation 1153 Pacific Standard Time
Direction of event from weather observation facility (degrees) 125
Weather Observation Facility ID STS
Elevation of weather observation facility 125
Distance of event from weather observation facility (units?) 22
Time Zone of the weather observation PST
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) 12
Dew Point at event time (in degress fahrenheit) 0
Wind Direction (degrees magnetic) 200
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 5
Wind Velocity Indicator --
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 30.06
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) 10946
NTSB Notification Source FAA
NTSB Notification Date Feb 14 2001 12:00AM
NTSB Notification Time 1430
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Nov 6 2001 9:00AM
User who most recently changed record NTSB\MONR
Basic weather conditions Visual Meteorological Cond
FAA District Office WP-OAK-FSDO

Aircraft Involved

Aircraft #1

Aircraft Registration Number N8286P
NTSB Number LAX01LA097
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-24-250
Aircraft Series Identifier --
Aircraft Serial Number 24-3538
Certified Max Gross Weight 2900
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 4
Number of Engines 1
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Mar 3 2000 12:00AM
Airframe hours since last inspection --
Airframe Hours 2339
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name THOMAS A. CONROY
Aircraft Owner Street Address --
Aircraft Owner City Sebastopol
Aircraft Owner State CA
Aircraft Owner Country USA
Aircraft Owner Zipcode 95472
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 No
Departure Airport Code STS
Departure City Santa Rosa
Departure State CA
Departure Country USA
Departure Time 1145
Departure Time Zone PST
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code O69
Destination City PETALUMA
Destination State CA
Destination Country USA
Specific Phase of Flight Landing
Report sent to ICAO? No
Evacuation occurred No
Date of most recent change to record Oct 22 2001 11:42AM
User who most recently changed record COOS
Since inspection or accident Last Inspection
Event Location Runway Number and Location 11
Runway Length 3600
Runway Width 75
Sight Seeing flight No
Air Medical Flight No
Medical Flight --