Oceano County Airport
Aircraft Accident/Incident Report

Oceano, California 93445
Friday, August 31, 2012 11:40 PDT

NTSB Narrative Summary Released at Completion of Accident

On August 31, 2012, about 1140 Pacific daylight time (PDT), a Beech G35, N4454D, encountered clear air turbulence while on descent to Oceano County Airport, Oceano, California. The owner/pilot was operating the airplane under the provisions of 14 Code of Federal Regulations (CFR) Part 91. The commercial pilot and two passengers were not injured; the airplane sustained substantial damage to the fuselage structure. The cross-country personal flight departed Tulare, California, about 1100, with a planned destination of Oceano. Visual meteorological conditions prevailed, and no flight plan had been filed. The pilot reported that while in descent to land at Oceano at 2,500 feet, he encountered a turbulence event, which lasted about 2 seconds. He stated that his indicated airspeed was about 180 miles per hour, and he immediately reduced power and slowed the airplane to about 140 miles per hour. He continued the approach without incident and landed. After landing the pilot observed deformities along the fuselage and determined that further examination of the airplane was warranted. Maintenance personnel examined the airplane and discovered substantial damage to the tail section of the fuselage. The pilot notified the NTSB on September 6, 2012, after he was advised by the maintenance personnel of the damage. The airplane was examined and documented on September 11, 2012, by investigators from the FAA and the airplane manufacturer's representative for Hawker Beechcraft Company.

NTSB Probable Cause Narrative

Not Yet Reported

Event Information

Type of Event Accident
Event Date 8/31/2012
Event Day of the Week Friday
Time of Event 1140
Event Time Zone Pacific Daylight Time
Event City Oceano
Event State CALIFORNIA
Event Country --
Zipcode of the event site 93445
Event Date Year 2012
Event Date Month 8
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 350603N
Event Location Longitude 1203712W
Event Location Airport Oceano County Airport
Event Location Nearest Airport ID L52
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 Weather Observation Facility
Time of the weather observation 1156 Pacific Daylight Time
Direction of event from weather observation facility (degrees) --
Weather Observation Facility ID SBP
Elevation of weather observation facility 212
Distance of event from weather observation facility (units?) --
Time Zone of the weather observation PDT
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) 21
Dew Point at event time (in degress fahrenheit) 11
Wind Direction (degrees magnetic) 260
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) 29.96
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report 11:56 AM 69.1 °F 51.1 °F 53% 29.96 in 10.0 mi
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 3
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) --
NTSB Notification Source FAA WP Operations Center
NTSB Notification Date --
NTSB Notification Time --
Fiche Number and/or location -used to find docket information --
Date of most recent change to record Sep 19 2012 10:14PM
User who most recently changed record coos
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N4454D
NTSB Number WPR12LA396
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 BEECH
Aircraft Model G35
Aircraft Series Identifier --
Aircraft Serial Number D-4598
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 4
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection --
Date of Last Inspection --
Airframe hours since last inspection --
Airframe Hours --
ELT Installed Unknown
ELT Activated Unknown
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name PADDOCK IAN B
Aircraft Owner Street Address --
Aircraft Owner City HANFORD
Aircraft Owner State CA
Aircraft Owner Country USA
Aircraft Owner Zipcode 93230-3029
Operator is an individual? No
Operator Name PADDOCK IAN B
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address --
Operator City HANFORD
Operator State CA
Operator Country USA
Operator Zip code 93230-3029
Operator Code --
Owner has at least one certificate None
Other Operator of large aircraft? No
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 TLR
Departure City Tulare
Departure State CA
Departure Country USA
Departure Time 1100
Departure Time Zone PDT
Destination Same as Local Flt crash at destination city
Destination Airport Code L52
Destination City Oceano
Destination State CA
Destination Country USA
Specific Phase of Flight --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Sep 19 2012 10:14PM
User who most recently changed record coos
Since inspection or accident --
Event Location Runway Number and Location N/A
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --