Oakland-Pontiac Airport
Aircraft Accident/Incident Report

Pontiac, Michigan 48055
Saturday, February 21, 1987 13:30 EST

NTSB Narrative Summary Released at Completion of Accident

WHILE THE ACFT WAS BEING TAXIED TO A HANGAR AFTER LANDING, THE LEFT MAIN GEAR COLLAPSED. AN INVESTIGATION REVEALED THE LEFT MAIN LANDING GEAR SPRING STRUT, PN 0741601-1, HAD FAILED WHERE IT WAS CLAMPED TO THE FUSELAGE. A METALLURGICAL EXAM OF THE FRACTURE AREA REVEALED THERE WAS FATIGUE WHERE FRETTING OF THE STRUT HAD OCCURRED AT THE CLAMP. THE ACFT HAD 3300 HRS OF TOTAL FLT TIME & WAS ESTIMATED TO HAVE HAD OVER 3000 LANDINGS.

NTSB Probable Cause Narrative

Not Yet Reported

Event Information

Type of Event Accident
Event Date 2/21/1987
Event Day of the Week Saturday
Time of Event 1330
Event Time Zone Eastern Standard Time
Event City PONTIAC
Event State MICHIGAN
Event Country --
Zipcode of the event site 48055
Event Date Year 1987
Event Date Month 2
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport OAKLAND-PONTIAC
Event Location Nearest Airport ID PTK
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 --
Weather Briefing Completeness Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 1445 Eastern Standard Time
Direction of event from weather observation facility (degrees) 0
Weather Observation Facility ID PTK
Elevation of weather observation facility 980
Distance of event from weather observation facility (units?) 0
Time Zone of the weather observation EST
Lighting Conditions Day
Lowest Ceiling Height 10000
Lowest Non-Ceiling Height 10000
Sky/Lowest/Cloud Conditions Unknown
Sky Condition for Lowest Ceiling Broken
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 4
Air Temperature at event time (in degrees celsius) --
Dew Point at event time (in degress fahrenheit) --
Wind Direction (degrees magnetic) 210
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 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 2
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 540
NTSB Notification Source --
NTSB Notification Date Feb 26 1987 12:00AM
NTSB Notification Time 1500
Fiche Number and/or location -used to find docket information 35123
Date of most recent change to record Dec 13 2000 1:43PM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N3513U
NTSB Number CHI87LA089
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 CESSNA
Aircraft Model 182F
Aircraft Series Identifier 182F
Aircraft Serial Number 18254913
Certified Max Gross Weight 2800
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 Aug 28 1986 12:00AM
Airframe hours since last inspection --
Airframe Hours 3300
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name ALVIN A. BULLOCK
Aircraft Owner Street Address 610 S. NEWMAN
Aircraft Owner City LAKE ORION
Aircraft Owner State MI
Aircraft Owner Country
Aircraft Owner Zipcode 48035
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) Personal
Second Pilot on Board Yes
Departure Point Same as Event Yes
Departure Airport Code PTK
Departure City
Departure State
Departure Country
Departure Time 1200
Departure Time Zone EST
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code PTK
Destination City
Destination State
Destination Country
Specific Phase of Flight Taxi
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 2 2001 10:30AM
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 --