Aircraft Accident/Incident Report

Vermillion Bay, Louisiana 70502
Thursday, June 24, 2004 13:50 CDT

NTSB Narrative Summary Released at Completion of Accident

The 6,562-hour commercial rated helicopter pilot encountered adverse weather while on a 114-nautical mile over water cross-country flight. The pilot contacted his company's flight following with a normal position report and reported inbound on a Gulf of Mexico operation. Approximately eight minutes later, the accident pilot contacted his company's flight following and changed his destination to another heliport, but did not give a reason for the change of destination. He also reported his estimated time of arrival and that he was 45 miles out. At the helicopters approximate time of arrival, another helicopter pilot monitoring a common VHF radio frequency, overheard a mayday distress call. He then replied by asking for the accident pilot's location, but received no response. A moment later, another mayday distress call was heard followed by, "going in the water." There were no further communications or reported distress calls, and no reported eyewitnesses. A Convective SIGMET advisory was valid at the time of the accident. The SIGMET warned of embedded thunderstorms moving from 220 degrees at 25 knots, with tops above 45,000 feet. This advisory encompassed the area of the accident site. There was no report of the pilot obtaining any formal preflight weather briefing (from a company, flight service station, DUATS or WSI weather program) prior to departure or en route.

NTSB Probable Cause Narrative

The pilot's continued flight into adverse weather conditions resulting in a loss of control. Contributing factors were the prevailing thunderstorms and the pilot's inadequate in flight preparation and planning.

Event Information

Type of Event Accident
Event Date 6/24/2004
Event Day of the Week Thursday
Time of Event 1350
Event Time Zone Central Daylight Time
Event City Vermillion Bay
Event State LOUISIANA
Event Country --
Zipcode of the event site 70502
Event Date Year 2004
Event Date Month 6
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 294520N
Event Location Longitude 0920447W
Event Location Airport --
Event Location Nearest Airport ID --
Indicates whether the acc/inc occurred off or on an airport --
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
Direction of event from weather observation facility (degrees) --
Weather Observation Facility ID ARA
Elevation of weather observation facility --
Distance of event from weather observation facility (units?) --
Time Zone of the weather observation --
Lighting Conditions --
Lowest Ceiling Height 3600
Lowest Non-Ceiling Height 2700
Sky/Lowest/Cloud Conditions Scattered
Sky Condition for Lowest Ceiling Broken
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) 8
Air Temperature at event time (in degrees celsius) 28
Dew Point at event time (in degress fahrenheit) 24
Wind Direction (degrees magnetic) 180
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 25
Wind Velocity Indicator --
Wind Gust Indicator Gusting
Wind Gust (knots) 31
Altimeter Setting at event time (in. Hg) 30.01
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report --
Event Highest Injury Fatal
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries --
Injury Total Fatal 3
Injury Total Minor --
Injury Total None --
Injury Total Serious --
Injury Total All 3
Investigating Agency NTSB
NTSB Docket Number (internal use) 20064
NTSB Notification Source BTR FSDO
NTSB Notification Date Jun 24 2004 12:00AM
NTSB Notification Time 1430
Fiche Number and/or location -used to find docket information DMS
Date of most recent change to record Jun 28 2006 1:30PM
User who most recently changed record NTSB\JOHB
Basic weather conditions Instrument Meteorological Cond
FAA District Office Baton Rouge Flight Standards District Office

Aircraft Involved

Aircraft #1

Aircraft Registration Number N5006F
NTSB Number FTW04FA168
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 135: Air Taxi & Commuter
Type of Flight Plan filed Company VFR
Flight plan Was Activated? Yes
Damage Destroyed
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name Bell
Aircraft Model 206-L1
Aircraft Series Identifier --
Aircraft Serial Number 45181
Certified Max Gross Weight 3500
Aircraft Category Helicopter
Aircraft Registration Class --
Aircraft is a homebuilt? No
Flight Crew Seats --
Cabin Crew Seats --
Passenger Seats --
Total number of seats on the aircraft 7
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection AAIP
Date of Last Inspection Jun 1 2004 12:00AM
Airframe hours since last inspection 59
Airframe Hours 23489.2
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name --
Aircraft Owner Street Address --
Aircraft Owner City --
Aircraft Owner State --
Aircraft Owner Country --
Aircraft Owner Zipcode --
Operator is an individual? --
Operator Name American Helicopters, Inc.
Operator Same as Owner? --
Operator Is Doing Business As --
Operator Address Same as Owner? --
Operator Street Address 7903 County Road 220
Operator City Angleton
Operator State TX
Operator Country USA
Operator Zip code 77515
Operator Code --
Owner has at least one certificate --
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 Non-scheduled
Indicates Domestic or International Flight Domestic
Operator carrying Pax/Cargo/Mail Passenger/Cargo
Type of Flying (Per_Bus / Primary) --
Second Pilot on Board --
Departure Point Same as Event No
Departure Airport Code NONE
Departure City EI-349
Departure State GM
Departure Country USA
Departure Time 1258
Departure Time Zone CDT
Destination Same as Local Flt --
Destination Airport Code 0R3
Destination City Abbeville
Destination State LA
Destination Country USA
Specific Phase of Flight Emergency descent/landing
Report sent to ICAO? No
Evacuation occurred No
Date of most recent change to record May 15 2006 11:01AM
User who most recently changed record CASH
Since inspection or accident Time of Accident
Event Location Runway Number and Location --
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --