Aircraft Accident/Incident Report

St. Petersburg, Florida 33702
Thursday, May 19, 1994 15:42 EST

NTSB Narrative Summary Released at Completion of Accident

The pilot was on initial takeoff climb at about 60 knots and 200 feet agl when he heard a loud noise from the vicinity of the tail section, followed by an immediate nose heavy condition. A right turn was initiated away from mangrove trees and the collective pitch was lowered. The helicopter started to turn to the right and collided with water and terrain in a nose down, right skid low attitude. Examination of the helicopter by an FAA inspector revealed the number five bearing, thomas coupling, and about 2 feet of the tail rotor driveshaft had separated and were not recovered.

NTSB Probable Cause Narrative

THE FAILURE OF THE NUMBER FIVE BEARING, SHAFT, OR THOMAS COUPLING FOR UNDETERMINED REASONS. CONTRIBUTING TO THE ACCIDENT WAS THE PILOT-IN-COMMAND'S DELAYED RESPONSE IN CONDUCTING THE EMERGENCY PROCEDURE BY NOT REDUCING THE THROTTLE TO IDLE POSITION, AND IMMEDIATELY ENTERING AUTOROTATION.

Event Information

Type of Event Accident
Event Date 5/19/1994
Event Day of the Week Thursday
Time of Event 1542
Event Time Zone Eastern Standard Time
Event City ST. PETERSBURG
Event State FLORIDA
Event Country --
Zipcode of the event site 33702
Event Date Year 1994
Event Date Month 5
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 Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 1550 Eastern Standard Time
Direction of event from weather observation facility (degrees) 20
Weather Observation Facility ID TPA
Elevation of weather observation facility 27
Distance of event from weather observation facility (units?) 8
Time Zone of the weather observation EST
Lighting Conditions Day
Lowest Ceiling Height 0
Lowest Non-Ceiling Height 4500
Sky/Lowest/Cloud Conditions Scattered
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 15
Air Temperature at event time (in degrees celsius) 31
Dew Point at event time (in degress fahrenheit) 18
Wind Direction (degrees magnetic) 0
Variable Wind Indicator Unknown
Wind Speed (knots) 0
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 Minor
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal --
Injury Total Minor 2
Injury Total None --
Injury Total Serious --
Injury Total All 2
Investigating Agency NTSB
NTSB Docket Number (internal use) 688
NTSB Notification Source --
NTSB Notification Date May 19 1994 12:00AM
NTSB Notification Time 1615
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Dec 6 2000 11:15AM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N72Z
NTSB Number MIA94LA144
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
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 3537
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 --
Airframe hours since last inspection --
Airframe Hours --
ELT Installed No
ELT Activated Unknown
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name HELICOPTER INC.
Aircraft Owner Street Address 8227 GRAVOIS
Aircraft Owner City ST. LOUIS
Aircraft Owner State MO
Aircraft Owner Country
Aircraft Owner Zipcode 63127
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
Owner has at least one certificate None
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 --
Indicates Domestic or International Flight --
Operator carrying Pax/Cargo/Mail --
Type of Flying (Per_Bus / Primary) Aerial Observation
Second Pilot on Board No
Departure Point Same as Event Yes
Departure Airport Code
Departure City
Departure State
Departure Country
Departure Time 1540
Departure Time Zone EST
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code
Destination City
Destination State
Destination Country
Specific Phase of Flight Takeoff
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 --