Pontiac/Oakland Co. Intl Airport
Aircraft Accident/Incident Report

Waterford, Michigan 48328
Friday, December 4, 1998 20:45 EST

NTSB Narrative Summary Released at Completion of Accident

The airplane collided with the tops of trees during an ILS approach near the middle marker. Witnesses heard the airplane strike the trees and a '...whop, whop, whop sound...' it made as it continued its flight. Other witnesses observed the airplane flying a curved, descending, flight path until the aircraft impacted the ground. Visibility was reported as 1/2 mile at the airport. The on-scene examination revealed no airframe or engine anomalies that would prevent flight. A section of the right propeller and other pieces of airframe were found along the approach path after initial impact with trees. The trees along the flight path were about 30 to 60 feet high. The tops of the taller trees were broken or had fresh cut marks on their limbs. The pilot's blood alcohol level was 216 (mg/dL, mg/hg).

NTSB Probable Cause Narrative

the pilot's descent below the decision height for the instrument approach.

Event Information

Type of Event Accident
Event Date 12/4/1998
Event Day of the Week Friday
Time of Event 2045
Event Time Zone Eastern Standard Time
Event City WATERFORD
Event State MICHIGAN
Event Country --
Zipcode of the event site 48328
Event Date Year 1998
Event Date Month 12
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport PONTIAC/OAKLAND CO. INTL
Event Location Nearest Airport ID PTK
Indicates whether the acc/inc occurred off or on an airport Off Airport/Airstrip
Distance from airport in statute miles 1
Degrees magnetic from airport 260
Airport Elevation 980
Weather Briefing Completeness Full
Investigator's weather source Weather Observation Facility
Time of the weather observation 2052 Eastern Standard Time
Direction of event from weather observation facility (degrees) 90
Weather Observation Facility ID PTK
Elevation of weather observation facility 980
Distance of event from weather observation facility (units?) 1
Time Zone of the weather observation EST
Lighting Conditions Night/Dark
Lowest Ceiling Height 100
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) 0.5
Air Temperature at event time (in degrees celsius) 8
Dew Point at event time (in degress fahrenheit) 8
Wind Direction (degrees magnetic) 90
Variable Wind Indicator Unknown
Wind Speed (knots) 8
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) 1944
NTSB Notification Source --
NTSB Notification Date Dec 4 1998 12:00AM
NTSB Notification Time 2050
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Jan 10 2001 9:48AM
User who most recently changed record dbo
Basic weather conditions Instrument Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N59902
NTSB Number CHI99FA047
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed IFR
Flight plan Was Activated? --
Damage Destroyed
Aircraft Fire Ground
Aircraft Explosion None
Aircraft Manufacturer's Full Name Piper
Aircraft Model PA-31-350
Aircraft Series Identifier PA-31-350
Aircraft Serial Number 31-7652125
Certified Max Gross Weight 7000
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 10
Number of Engines --
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Aug 31 1998 12:00AM
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 L AND W FLYING SERVICES, INC.
Aircraft Owner Street Address 2670 INDUSTRIAL ROW
Aircraft Owner City TROY
Aircraft Owner State MI
Aircraft Owner Country
Aircraft Owner Zipcode 48084
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 LVWA
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 --
Indicates Domestic or International Flight --
Operator carrying Pax/Cargo/Mail --
Type of Flying (Per_Bus / Primary) Positioning
Second Pilot on Board No
Departure Point Same as Event No
Departure Airport Code LAN
Departure City LANSING
Departure State MI
Departure Country
Departure Time 2020
Departure Time Zone EST
Destination Same as Local Flt crash at destination city
Destination Airport Code PTK
Destination City
Destination State
Destination Country
Specific Phase of Flight Approach
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 10 2001 12:27PM
User who most recently changed record dbo
Since inspection or accident --
Event Location Runway Number and Location 9R
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --