Vandenberg Airport
Aircraft Accident/Incident Report

Ruskin, Florida 33570
Sunday, December 7, 2003 15:41 EST

NTSB Narrative Summary Released at Completion of Accident

The flight was dispatched on a routine police call and was circling at 500 feet above ground level when the second pilot felt a reduction in engine power and noted a split in the rotor and turbine tachometers. After the throttle position was checked, the pilot-in-command realized that there was a reduction in engine power as the engine rpm went to idle. The pilot lowered the collective to enter an autorotation descent at 60 knots. The helicopter collided with the ground in a marshy area with a tail low attitude. The engine continued to run at idle power until the crew shut down the engine using the throttle and fuel valve handle. The pilot did not report any mechanical malfunctions with the helicopter prior to the accident. Examination of accident site revealed the wreckage crashed in a densely vegetated and marshy area, three miles east of Ruskin, Florida and 18 miles south of Tampa, Florida. Examination of the aircraft revealed damage to the bottom of the fuselage, one main rotor blade was severed three and a half feet from blade-retaining bolt, both pitch change links fractured, the tail boom severed just forward of the horizontal stabilizers, one tail rotor blade was bent 90-degrees near the root of blade and the lower leading edge of the aft vertical fin was damaged. It was also noted that the engine to transmission drive shaft exhibited a bend of 10-degrees. Examination of the engine revealed no anomalies in the general physical condition and security of the engine as it was mounted in the accident helicopter. King Laboratories in Tampa, Florida tested the fuel samples both from the helicopter and the tank from which the helicopter was refueled. The samples were determined to be in compliance with the standards established for Jet A fuel. The first five attempts to preform a functional test-run of the engine were unsuccessful and the original fuel control was replaced. On the sixth attempt, the engine ran without issue. The power turbine governor and fuel control were bench tested at the Honeywell facility and no pre-existing conditions were identified that would have prevented normal operation in either assembly. An additional engine run with the original controls installed was performed at the Rolls-Royce plant and the engine ran without irregularities and nearly to performance standards for new production engines.

NTSB Probable Cause Narrative

Loss of engine power due to undertermined reasons which resulted in a collision with terrain.

Event Information

Type of Event Accident
Event Date 12/7/2003
Event Day of the Week Sunday
Time of Event 1541
Event Time Zone Eastern Standard Time
Event City Ruskin
Event State FLORIDA
Event Country --
Zipcode of the event site 33570
Event Date Year 2003
Event Date Month 12
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 275438N
Event Location Longitude 0824114W
Event Location Airport Vandenberg Airport
Event Location Nearest Airport ID VDF
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 22
Weather Briefing Completeness Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 1653 Eastern Standard Time
Direction of event from weather observation facility (degrees) 350
Weather Observation Facility ID KTPA
Elevation of weather observation facility 26
Distance of event from weather observation facility (units?) 18
Time Zone of the weather observation EST
Lighting Conditions Day
Lowest Ceiling Height --
Lowest Non-Ceiling Height 25000
Sky/Lowest/Cloud Conditions Few
Sky Condition for Lowest Ceiling --
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) 4
Wind Direction (degrees magnetic) 340
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 10
Wind Velocity Indicator --
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 30.1
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 2
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 17886
NTSB Notification Source FAA
NTSB Notification Date Dec 7 2003 12:00AM
NTSB Notification Time 1900
Fiche Number and/or location -used to find docket information DMS
Date of most recent change to record Jul 7 2005 10:33AM
User who most recently changed record NTSB\JOHB
Basic weather conditions Visual Meteorological Cond
FAA District Office Tampa FSDO

Aircraft Involved

Aircraft #1

Aircraft Registration Number N62939
NTSB Number ATL04TA047
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 Bell
Aircraft Model OH-58A
Aircraft Series Identifier --
Aircraft Serial Number 72-21449
Certified Max Gross Weight 3200
Aircraft Category Helicopter
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 5
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection 100 Hour
Date of Last Inspection Oct 28 2003 12:00AM
Airframe hours since last inspection 44.2
Airframe Hours 8871.4
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name Hillsborough County Sheriffs Department
Aircraft Owner Street Address 5808 Wilkins Rd
Aircraft Owner City Tampa
Aircraft Owner State FL
Aircraft Owner Country USA
Aircraft Owner Zipcode 33610
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) Public Use
Second Pilot on Board Yes
Departure Point Same as Event No
Departure Airport Code KVDF
Departure City Tampa
Departure State FL
Departure Country USA
Departure Time 1515
Departure Time Zone EST
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code --
Destination City Ruskin
Destination State FL
Destination Country USA
Specific Phase of Flight Cruise
Report sent to ICAO? No
Evacuation occurred No
Date of most recent change to record May 6 2005 11:40AM
User who most recently changed record POWP
Since inspection or accident Time of Accident
Event Location Runway Number and Location NA
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --