Aircraft Accident/Incident Report

Intracoastal, Louisiana 70510
Thursday, May 8, 1997 16:30 CDT

NTSB Narrative Summary Released at Completion of Accident

Outbound on a fish spotting flight (flt), the pilot (plt) made a distress call to other company plts that he did not feel well & was returning to the airport. He said he was getting sick & 'a little nauseated.' Radio contact was lost, & the airplane crashed in the Gulf of Mexico. Investigation revealed that before flt, the plt had breakfast, flew 4 hrs, attended a safety meeting & went to a health club. Company plts said he was upset from reprimands at the safety meeting, was stressed for monetary reasons, was worried about his job, & was concerned about his blood pressure, but would fly while fatigued or when not feeling well. Reportedly, he had not slept well the previous night. Following a partial workout & steam room session, he was seen holding his head in his hands outside the steam room; he said he stayed in the steam room too long & felt 'quizzy like was going to throw up, like over doing it.' He did not eat lunch, but rested before flt. The plt was noted to have high blood pressure, when he applied for a 2nd class medical certificate on 3/3/97. The certificate was issued after he was evaluated by a cardiologist & was prescribed Tenormin (atenolol) & Lipitor (atorvastatin). Tenormin is a medication that reduces resting & exercise heart rate & is acceptable to the FAA for control of blood pressure. Lipitor is a cholesterol-lowering agent. Toxicology testing revealed trace amounts of diphenhydramine (trade name Benadryl), an over-the-counter sedating antihistamine, in the plt's liver & kidney fluids.

NTSB Probable Cause Narrative

the pilot's decision to fly, when he was not in good physical condition; and his subsequent loss of aircraft control due to incapacitation. A related factor was: the pilot's perception of an urgency (pressure) to fly, induced by conditions/events.

Event Information

Type of Event Accident
Event Date 5/8/1997
Event Day of the Week Thursday
Time of Event 1630
Event Time Zone Central Daylight Time
Event City INTRACOASTAL
Event State LOUISIANA
Event Country --
Zipcode of the event site 70510
Event Date Year 1997
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 Not pertinent
Investigator's weather source Weather Observation Facility
Time of the weather observation 1654 Central Daylight Time
Direction of event from weather observation facility (degrees) 185
Weather Observation Facility ID LFT
Elevation of weather observation facility 42
Distance of event from weather observation facility (units?) 22
Time Zone of the weather observation CDT
Lighting Conditions Day
Lowest Ceiling Height 25000
Lowest Non-Ceiling Height 4500
Sky/Lowest/Cloud Conditions Scattered
Sky Condition for Lowest Ceiling Broken
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) 28
Dew Point at event time (in degress fahrenheit) 17
Wind Direction (degrees magnetic) 200
Variable Wind Indicator Unknown
Wind Speed (knots) 10
Wind Velocity Indicator Unknown
Wind Gust Indicator Not Gusting
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 30
Density Altitude (feet) --
Intensity of Precipitation Unknown
METAR weather report --
Event Highest Injury Fatal
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal 1
Injury Total Minor --
Injury Total None --
Injury Total Serious --
Injury Total All 1
Investigating Agency NTSB
NTSB Docket Number (internal use) 558
NTSB Notification Source --
NTSB Notification Date May 8 1997 12:00AM
NTSB Notification Time 1750
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Oct 31 2002 3:58PM
User who most recently changed record NTSB\ZUZL
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N6505V
NTSB Number FTW97FA181
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed Company VFR
Flight plan Was Activated? --
Damage Destroyed
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name Cessna
Aircraft Model 172RG
Aircraft Series Identifier 172RG
Aircraft Serial Number 172RG0738
Certified Max Gross Weight 1555
Aircraft Category Airplane
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 4
Number of Engines 1
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Nov 12 1996 12:00AM
Airframe hours since last inspection --
Airframe Hours --
ELT Installed Yes
ELT Activated Unknown
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name ZAPATA PROTEIN (USA) INC.
Aircraft Owner Street Address P. O. BOX 1670
Aircraft Owner City MANDEVILLE
Aircraft Owner State LA
Aircraft Owner Country
Aircraft Owner Zipcode 70470
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) Unknown
Second Pilot on Board No
Departure Point Same as Event Yes
Departure Airport Code OR3
Departure City
Departure State
Departure Country
Departure Time 1610
Departure Time Zone CDT
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 Descent - uncontrolled
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 --