Aircraft Accident/Incident Report

Cameron, Louisiana 70631
Friday, April 17, 1998 8:45 CDT

NTSB Narrative Summary Released at Completion of Accident

During final approach, the pilot reported erratic engine and rotor rpm accelerations and droop. To arrest a high rate of descent, the pilot initiated a cyclic flare at 75 feet AGL and leveled the helicopter prior to touchdown. The helicopter landed 'hard' and the main rotor blades 'flexed' downward, separating the tail boom. Four passengers onboard thought the helicopter 'lost power.' The helicopter was within weight and balance limits for the flight. Examination of the engine and fuel system did not reveal any anomalies. Calibrated bench tests of the N1 tachometer, and the N2/rotor rpm dual tachometer showed that they were within limits. The fuel control, fuel pump, and power turbine governor were all found to be within overhaul specifications. Pneumatic lines were found intact.

NTSB Probable Cause Narrative

The loss of engine power for undetermined reasons and the pilot's improper flare which resulted in a hard landing.

Event Information

Type of Event Accident
Event Date 4/17/1998
Event Day of the Week Friday
Time of Event 845
Event Time Zone Central Daylight Time
Event City CAMERON
Event State LOUISIANA
Event Country --
Zipcode of the event site 70631
Event Date Year 1998
Event Date Month 4
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
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 Not pertinent
Investigator's weather source Pilot
Time of the weather observation 0
Direction of event from weather observation facility (degrees) 0
Weather Observation Facility ID
Elevation of weather observation facility 0
Distance of event from weather observation facility (units?) 0
Time Zone of the weather observation
Lighting Conditions Day
Lowest Ceiling Height 6000
Lowest Non-Ceiling Height 0
Sky/Lowest/Cloud Conditions Unknown
Sky Condition for Lowest Ceiling Overcast
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 7
Air Temperature at event time (in degrees celsius) 16
Dew Point at event time (in degress fahrenheit) 13
Wind Direction (degrees magnetic) 360
Variable Wind Indicator Unknown
Wind Speed (knots) 25
Wind Velocity Indicator Unknown
Wind Gust Indicator Not Gusting
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 29
Density Altitude (feet) --
Intensity of Precipitation Unknown
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 5
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 537
NTSB Notification Source --
NTSB Notification Date Apr 17 1998 12:00AM
NTSB Notification Time 2042
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Dec 11 2000 11:08AM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N59604
NTSB Number FTW98LA187
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 135: Air Taxi & Commuter
Type of Flight Plan filed Company VFR
Flight plan Was Activated? --
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name Bell
Aircraft Model 206B
Aircraft Series Identifier 206B
Aircraft Serial Number 1490
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 Annual
Date of Last Inspection Nov 24 1997 12:00AM
Airframe hours since last inspection 49
Airframe Hours 6345
ELT Installed No
ELT Activated Unknown
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name HOUSTON HELICOPTERS, INC.
Aircraft Owner Street Address 3506 LOCKHEED P.O. BOX 830
Aircraft Owner City PEARLAND
Aircraft Owner State TX
Aircraft Owner Country
Aircraft Owner Zipcode 77588
Operator is an individual? --
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 YHHA
Owner has at least one certificate Yes - certificate holder
Other Operator of large aircraft? No
Certified for Part 133 or 137 Operation Unknown
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) Unknown
Second Pilot on Board No
Departure Point Same as Event No
Departure Airport Code EC33
Departure City GULF OF MEXICO
Departure State GM
Departure Country
Departure Time 824
Departure Time Zone CDT
Destination Same as Local Flt crash at destination city
Destination Airport Code NONE
Destination City
Destination State LA
Destination Country
Specific Phase of Flight Approach
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 2 2001 10:34AM
User who most recently changed record dbo
Since inspection or accident --
Event Location Runway Number and Location 0
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --