Aircraft Accident/Incident Report

Galveston, Texas 77554
Saturday, October 6, 2007 8:01 CDT

NTSB Narrative Summary Released at Completion of Accident

The pilot reported that as the helicopter was accelerating through 40 to 50 knots in a slight climb, while still only about 200 feet away from the departed offshore platform, he felt and heard a "loud bang" as the tail of the helicopter yawed to the right. He added that the helicopter started to descend and he made a mayday call as he prepared for the water landing. The helicopter touched down in a nose high attitude, and the tail rotor system was reported to have contacted the water. The emergency flotation system deployed successfully and the helicopter and the passengers reported that the helicopter made a smooth water landing. A detailed follow-up engine examination was conducted at the operator's maintenance facilities. The investigation concluded that there was no evidence of distress or failure observed on any of the components of the compressor, engine gearbox, or turbine assemblies that might have accounted for the loud bang reported by the pilot and the passengers during the accident sequence. Additionally, no unresolved engine-related discrepancies were found in the examined aircraft or engine records. The operator reported that a section of a tail rotor blade was found on a beach miles from the site. The blade was verified to be from the accident helicopter. The portion of the tail rotor blade was forwarded to a lab, where further examination revealed marks on the leading edge of the blade. The marks extended approximately thirteen inches from the tip of the blade and appeared to be evenly spaced. The fracture appeared to be the result of overload. The transferred material was confirmed not to be from any part of the helicopter. The analysis of the material revealed that it was possibly the metal bindings of a notebook. The suspected 3-ring binder was not located and none of the 3 occupants of the helicopter reported losing a 3-ring binder. The manager of the offshore helideck reported that there were no lose objects of any type at the helideck and FOD sweeps are made on a routine basis. The source of the missing binder could not be established.

NTSB Probable Cause Narrative

The loss of tail rotor control during initial takeoff climb due to the fracture of a tail rotor blade as result of impact with a foreign object.

Event Information

Type of Event Incident
Event Date 10/6/2007
Event Day of the Week Saturday
Time of Event 801
Event Time Zone Central Daylight Time
Event City Galveston
Event State TEXAS
Event Country --
Zipcode of the event site 77554
Event Date Year 2007
Event Date Month 10
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 291031N
Event Location Longitude 0913719W
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 752 Central Daylight Time
Direction of event from weather observation facility (degrees) 170
Weather Observation Facility ID KGLS
Elevation of weather observation facility 6
Distance of event from weather observation facility (units?) 13
Time Zone of the weather observation CDT
Lighting Conditions Day
Lowest Ceiling Height 2900
Lowest Non-Ceiling Height 2200
Sky/Lowest/Cloud Conditions Few
Sky Condition for Lowest Ceiling Broken
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) 10
Air Temperature at event time (in degrees celsius) 27
Dew Point at event time (in degress fahrenheit) 24
Wind Direction (degrees magnetic) --
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) --
Wind Velocity Indicator Calm
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 29.93
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report KGLS 061252Z 00000KT 10SM FEW022 BKN029 27/24 A299
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) 24830
NTSB Notification Source Regional Operations Center FTW
NTSB Notification Date Oct 6 2007 12:00AM
NTSB Notification Time --
Fiche Number and/or location -used to find docket information --
Date of most recent change to record Dec 23 2008 1:16PM
User who most recently changed record bowl
Basic weather conditions Visual Meteorological Cond
FAA District Office Houston, Texas

Aircraft Involved

Aircraft #1

Aircraft Registration Number N3899C
NTSB Number DFW08IA002
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 Minor
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name BELL HELICOPTER TEXTRON
Aircraft Model 206L-1
Aircraft Series Identifier --
Aircraft Serial Number 45596
Certified Max Gross Weight 4150
Aircraft Category Helicopter
Aircraft Registration Class --
Aircraft is a homebuilt? No
Flight Crew Seats 1
Cabin Crew Seats --
Passenger Seats 4
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 Oct 4 2007 12:00AM
Airframe hours since last inspection 4
Airframe Hours 17783
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type Unknown
Aircraft Owner Name AIR LOGISTICS LLC
Aircraft Owner Street Address 4605 INDUSTRIAL DR
Aircraft Owner City NEW IBERIA
Aircraft Owner State LA
Aircraft Owner Country USA
Aircraft Owner Zipcode 70560-9124
Operator is an individual? No
Operator Name Air Logistics LLC, a Bristow Company
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address 4605 Industrial Dr.
Operator City New Iberia
Operator State LA
Operator Country USA
Operator Zip code 70560
Operator Code ALGA
Owner has at least one certificate Yes - certificate holder
Other Operator of large aircraft? No
Certified for Part 133 or 137 Operation External Load
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 Yes
Departure Airport Code --
Departure City Galveston
Departure State TX
Departure Country USA
Departure Time --
Departure Time Zone CDT
Destination Same as Local Flt --
Destination Airport Code --
Destination City HI-138
Destination State GM
Destination Country USA
Specific Phase of Flight Takeoff
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Dec 9 2011 11:03AM
User who most recently changed record broda
Since inspection or accident Time of Accident
Event Location Runway Number and Location N/A
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --