Porterville Muni Airport
Aircraft Accident/Incident Report

Porterville, California 93257
Monday, September 15, 1986 10:50 PDT

NTSB Narrative Summary Released at Completion of Accident

AFTER A NORMAL LANDING THE PILOT SAID HE BEGAN TO APPLY MODERATE BRAKE PRESSURE TO MAKE THE MID-FIELD TAXIWAY TURN OFF AND FELT WHAT HE DESCRIBED AS 'A LIGHT JERK IN THE LEFT GEAR' FOLLOWED BY A 'SNAPPING SOUND WHICH OCCURRED TWO OR THREE TIMES.' THE PILOT THEN SAID THE LEFT BRAKE FAILED COMPLETELY AND THE 'AIRCRAFT VEERED TO THE RIGHT AND ENTERED A GROUND LOOP.' EXAMINATION OF THE LEFT BRAKE REVEALED THAT THE LEFT BRAKE DISC DRIVE KEY RETAINING SCREW FAILED, WHICH ALLOWED THE KEY TO FLOAT LOOSE IN THE BRAKE HOUSING. THE MECHANIC WHO EXAMINED THE BRAKE SYSTEM STATED THAT THE LOOSE KEY 'BROKE OUT THE LOWER PART OF THE HOUSING ALLOWING THE BRAKE LINING TO FALL OUT.'

NTSB Probable Cause Narrative

Not Yet Reported

Event Information

Type of Event Accident
Event Date 9/15/1986
Event Day of the Week Monday
Time of Event 1050
Event Time Zone Pacific Daylight Time
Event City PORTERVILLE
Event State CALIFORNIA
Event Country --
Zipcode of the event site 93257
Event Date Year 1986
Event Date Month 9
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport PORTERVILLE MUNI
Event Location Nearest Airport ID PTV
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 444
Weather Briefing Completeness Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 1050 Pacific Daylight Time
Direction of event from weather observation facility (degrees) 155
Weather Observation Facility ID BFL
Elevation of weather observation facility 490
Distance of event from weather observation facility (units?) 36
Time Zone of the weather observation PDT
Lighting Conditions Day
Lowest Ceiling Height 0
Lowest Non-Ceiling Height 25000
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) 7
Air Temperature at event time (in degrees celsius) 19
Dew Point at event time (in degress fahrenheit) 9
Wind Direction (degrees magnetic) 300
Variable Wind Indicator Unknown
Wind Speed (knots) 5
Wind Velocity Indicator Unknown
Wind Gust Indicator Not Gusting
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 30
Density Altitude (feet) 1050
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 1
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 1700
NTSB Notification Source --
NTSB Notification Date Sep 16 1986 12:00AM
NTSB Notification Time 1620
Fiche Number and/or location -used to find docket information 32131
Date of most recent change to record Jan 2 2001 9:14AM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N3879V
NTSB Number LAX86LA351
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 195
Aircraft Series Identifier 195
Aircraft Serial Number 7347
Certified Max Gross Weight 3150
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 6
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Aug 7 1986 12:00AM
Airframe hours since last inspection 51
Airframe Hours 4910
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name GRAND CANYON DORIES, INC.
Aircraft Owner Street Address PO BOX 3029
Aircraft Owner City STANFORD
Aircraft Owner State CA
Aircraft Owner Country
Aircraft Owner Zipcode 94305
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) Executive/Corporate
Second Pilot on Board No
Departure Point Same as Event No
Departure Airport Code GCN
Departure City GRAND CANYON
Departure State AZ
Departure Country
Departure Time 715
Departure Time Zone PDT
Destination Same as Local Flt crash at destination city
Destination Airport Code
Destination City
Destination State
Destination Country
Specific Phase of Flight Landing
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 2 2001 10:36AM
User who most recently changed record dbo
Since inspection or accident --
Event Location Runway Number and Location 30
Runway Length 6000
Runway Width 146
Sight Seeing flight No
Air Medical Flight No
Medical Flight --