Westerly State Airport
Aircraft Accident/Incident Report

Stonington, Connecticut 06378
Monday, July 24, 1989 22:36 EDT

NTSB Narrative Summary Released at Completion of Accident

BEFORE TAKEOFF, THE PLT OBTAINED WX INFO. NO WX RPRT WAS AVAILABLE FOR THE DEP ARPT, BUT THE DESTN (HARTFORD, CT) WAS RPRTD AS CLEAR. THE PLT SAID HE WAS INFORMED ON UNICOM FREQ THAT THERE WAS ONLY GROUND FOG IN RHODE ISLAND, WHICH SHOULDNOT HAVE INTERFERED WITH HIS FLT TO HARTFORD. AFTER PREFLIGHTING THE ACFT, HE 'OBSERVED THE STARS DIRECTLY OVERHEAD AND CONCLUDED THAT THERE WAS JUST GROUND FOG.' ALSO, THE PLT STATED THAT AFTER TAKEOFF, THE ACFT HAD CLIMBED TO 200 FT MSL WHEN HE SUDDENLY REALIZED THE DENSITY OF THE FOG WAS THICKER THAN RPRTD OR ANTICIPATED. (THE ARPT ELEV WAS 81 FT.) HE SAID HE THEN EXPERIENCED VERTIGO (SPATIAL DISORIENTATION) & LOST CONTROL OF THE ACFT. SUBSEQUENTLY, THE ACFT HIT THE TOPS OF TREES & CRASHED IN THE PAWCATUCK RIVER. AS THE ACFT SANK, THE OCCUPANTS EGRESSED, THEN SWAM TO A DOCK WHERE THEY RCVD HELP.

NTSB Probable Cause Narrative

THE PILOT'S INADVERTENT FLIGHT INTO INSTRUMENT METEOROLOGICAL CONDITIONS (IMC) AND HIS LOSS OF AIRCRAFT CONTROL DUE TO SPATIAL DISORIENTATION. FACTORS RELATED TO THE ACCIDENT WERE: THE ENVIRONMENTAL CONDITIONS (DARK NIGHT & FOG) AND THE PILOT'S LACK OF INSTRUMENT EXPERIENCE.

Event Information

Type of Event Accident
Event Date 7/24/1989
Event Day of the Week Monday
Time of Event 2236
Event Time Zone Eastern Daylight Time
Event City STONINGTON
Event State CONNECTICUT
Event Country --
Zipcode of the event site 06378
Event Date Year 1989
Event Date Month 7
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport WESTERLY STATE
Event Location Nearest Airport ID WST
Indicates whether the acc/inc occurred off or on an airport Off Airport/Airstrip
Distance from airport in statute miles 0
Degrees magnetic from airport 0
Airport Elevation 81
Weather Briefing Completeness Partial - limited by briefer
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 Night/Dark
Lowest Ceiling Height 0
Lowest Non-Ceiling Height 0
Sky/Lowest/Cloud Conditions Unknown
Sky Condition for Lowest Ceiling Unknown
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 0
Air Temperature at event time (in degrees celsius) -18
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 Calm
Wind Gust Indicator Not Gusting
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) --
Density Altitude (feet) 0
Intensity of Precipitation Unknown
METAR weather report --
Event Highest Injury Serious
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal --
Injury Total Minor --
Injury Total None 1
Injury Total Serious 1
Injury Total All 1
Investigating Agency NTSB
NTSB Docket Number (internal use) 1584
NTSB Notification Source --
NTSB Notification Date Jul 25 1989 12:00AM
NTSB Notification Time 30
Fiche Number and/or location -used to find docket information 40470
Date of most recent change to record Dec 18 2002 11:28AM
User who most recently changed record NTSB\GIUV
Basic weather conditions Unknown
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N29216
NTSB Number NYC89LA174
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed VFR
Flight plan Was Activated? --
Damage Destroyed
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name PIPER
Aircraft Model PA-28-161
Aircraft Series Identifier PA-28-161
Aircraft Serial Number 28-7916421
Certified Max Gross Weight 310
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 Fixed
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Jul 1 1989 12:00AM
Airframe hours since last inspection --
Airframe Hours 3855
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name MACK GRANT
Aircraft Owner Street Address 35 BANCROFT ST.
Aircraft Owner City EAST HARTFORD
Aircraft Owner State CT
Aircraft Owner Country
Aircraft Owner Zipcode 06118
Operator is an individual? --
Operator Name MICHAEL KAHLMAN
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address 39 WOODCLIFF DRIVE
Operator City GRANBY
Operator State CT
Operator Country
Operator Zip code 06035
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) Personal
Second Pilot on Board No
Departure Point Same as Event No
Departure Airport Code
Departure City WESTERLY
Departure State RI
Departure Country
Departure Time 1040
Departure Time Zone EDT
Destination Same as Local Flt --
Destination Airport Code HFD
Destination City HARTFORD
Destination State CT
Destination Country
Specific Phase of Flight Takeoff
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 2 2001 10:35AM
User who most recently changed record dbo
Since inspection or accident --
Event Location Runway Number and Location 25
Runway Length 4000
Runway Width 100
Sight Seeing flight No
Air Medical Flight No
Medical Flight --