Bishop Int. Airport
Aircraft Accident/Incident Report

Flint, Michigan 48501
Sunday, July 14, 1991 13:47 EDT

NTSB Narrative Summary Released at Completion of Accident

THE PILOT SAID THAT WHILE BEING VECTORED ON FINAL APPROACH ABOUT 5 MILES OUT, THE AIRCRAFT DEVELOPED A SEVERE VIBRATION. AN EMERGENCY WAS DECLARED AND A LANDING WAS ATTEMPTED ON THE AIRPORT. THE AIRCRAFT LANDED SHORT OF THE RUNWAY WHICH RESULTED IN SUBSTANTIAL DAMAGE. POST ACCIDENT INVESTIGATION REVEALED FAILURE OF THE PITCH CHANGE KNOBS ON ONE PROPELLER BLADE.

NTSB Probable Cause Narrative

PROPELLER PITCH CHANGE MECHANISM SHEARED. FACTORS RELATED TO THE ACCIDENT WERE POWERPLANT VIBRATION AND PROPER TOUCHDOWN POINT NOT POSSIBLE.

Event Information

Type of Event Accident
Event Date 7/14/1991
Event Day of the Week Sunday
Time of Event 1347
Event Time Zone Eastern Daylight Time
Event City FLINT
Event State MICHIGAN
Event Country --
Zipcode of the event site 48501
Event Date Year 1991
Event Date Month 7
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport BISHOP INT.
Event Location Nearest Airport ID FNT
Indicates whether the acc/inc occurred off or on an airport On Airport
Distance from airport in statute miles 0
Degrees magnetic from airport 0
Airport Elevation 782
Weather Briefing Completeness Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 1732 Eastern Daylight Time
Direction of event from weather observation facility (degrees) 1
Weather Observation Facility ID FNT
Elevation of weather observation facility 782
Distance of event from weather observation facility (units?) 1
Time Zone of the weather observation EDT
Lighting Conditions Day
Lowest Ceiling Height 0
Lowest Non-Ceiling Height 5000
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) 12
Air Temperature at event time (in degrees celsius) --
Dew Point at event time (in degress fahrenheit) --
Wind Direction (degrees magnetic) 360
Variable Wind Indicator Unknown
Wind Speed (knots) 9
Wind Velocity Indicator Unknown
Wind Gust Indicator Unknown
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) --
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 3
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 1384
NTSB Notification Source --
NTSB Notification Date --
NTSB Notification Time 0
Fiche Number and/or location -used to find docket information 44086
Date of most recent change to record Dec 12 2000 10:31AM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N8803P
NTSB Number CHI91LA218
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 PIPER
Aircraft Model PA-24-260
Aircraft Series Identifier PA-24-260
Aircraft Serial Number 24-4286
Certified Max Gross Weight 2900
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 Oct 5 1990 12:00AM
Airframe hours since last inspection 90
Airframe Hours --
ELT Installed Yes
ELT Activated Yes
ELT Aided Location of Event Site Yes
ELT Type --
Aircraft Owner Name
Aircraft Owner Street Address
Aircraft Owner City
Aircraft Owner State
Aircraft Owner Country
Aircraft Owner Zipcode
Operator is an individual? --
Operator Name VERNON C. SLATER
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address 63 N. BASSETT ROAD
Operator City LAPEER
Operator State MI
Operator Country
Operator Zip code 48446
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 APN
Departure City ALPENA
Departure State MI
Departure Country
Departure Time 1240
Departure Time Zone EDT
Destination Same as Local Flt crash at destination city
Destination Airport Code
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 2 2001 10:35AM
User who most recently changed record dbo
Since inspection or accident --
Event Location Runway Number and Location 9
Runway Length 7199
Runway Width 150
Sight Seeing flight No
Air Medical Flight No
Medical Flight --