Aircraft Accident/Incident Report

Hig Island A595, -- 000000
Saturday, December 15, 2007 14:58 CST

NTSB Narrative Summary Released at Completion of Accident

During cruise flight, the commercial pilot experienced a violent vibration in the airframe followed by a loud "pop" and the helicopter began to yaw to the right. The pilot attempted to correct the adverse yaw but could not regain tail rotor control. The pilot deployed the floatation system and performed an autorotation onto the water. Both pilot and passenger were able to egress the helicopter without incident and entered a life raft. While awaiting rescue the pilot visually inspected the helicopter and could observe no damage or malfunction. A US Coast Guard helicopter crew rescued the pilot and passenger from the water. Prior to recovery, the helicopter capsized due to the rough seas, sank and was not recovered.

NTSB Probable Cause Narrative

The loss of tail rotor effectiveness for undetermined reasons.

Event Information

Type of Event Incident
Event Date 12/15/2007
Event Day of the Week Saturday
Time of Event 1458
Event Time Zone Central Standard Time
Event City Hig Island A595
Event State GULF OF MEXICO
Event Country --
Zipcode of the event site 000000
Event Date Year 2007
Event Date Month 12
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 275550N
Event Location Longitude 0934550W
Event Location Airport --
Event Location Nearest Airport ID --
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 1452 Central Standard Time
Direction of event from weather observation facility (degrees) 350
Weather Observation Facility ID KGLS
Elevation of weather observation facility 6
Distance of event from weather observation facility (units?) 105
Time Zone of the weather observation CST
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) 17
Dew Point at event time (in degress fahrenheit) 6
Wind Direction (degrees magnetic) 320
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 21
Wind Velocity Indicator --
Wind Gust Indicator Gusting
Wind Gust (knots) 27
Altimeter Setting at event time (in. Hg) 29.98
Density Altitude (feet) --
Intensity of Precipitation --
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 2
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 23197
NTSB Notification Source Regional Operations Center, FT
NTSB Notification Date Dec 15 2007 12:00AM
NTSB Notification Time --
Fiche Number and/or location -used to find docket information DMS
Date of most recent change to record Mar 31 2008 11:52AM
User who most recently changed record NTSB\johb
Basic weather conditions Visual Meteorological Cond
FAA District Office Baton Rouge, Lousiana

Aircraft Involved

Aircraft #1

Aircraft Registration Number N407AK
NTSB Number DFW08IA045
Missing Aircraft Indicator Y
Federal Aviation Reg. Part Part 135: Air Taxi & Commuter
Type of Flight Plan filed VFR
Flight plan Was Activated? Yes
Damage None
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name Bell
Aircraft Model 407
Aircraft Series Identifier --
Aircraft Serial Number 53269
Certified Max Gross Weight 5250
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 6
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection AAIP
Date of Last Inspection Dec 1 2007 12:00AM
Airframe hours since last inspection --
Airframe Hours 3972
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name Rotorcraft Leasing Compnay, LLC
Aircraft Owner Street Address 430 N Eola Rd
Aircraft Owner City Broussard
Aircraft Owner State LA
Aircraft Owner Country USA
Aircraft Owner Zipcode 70518
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 YTRL
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 Only
Type of Flying (Per_Bus / Primary) --
Second Pilot on Board No
Departure Point Same as Event No
Departure Airport Code A573
Departure City HI A573A
Departure State GM
Departure Country USA
Departure Time 1453
Departure Time Zone CST
Destination Same as Local Flt --
Destination Airport Code A376
Destination City HI A376
Destination State GM
Destination Country USA
Specific Phase of Flight Cruise
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Feb 29 2008 5:57PM
User who most recently changed record GAMW
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 --