Calistoga Glider Port Airport
Aircraft Accident/Incident Report

Calistoga, California 94515
Saturday, November 14, 1992 15:00 PST

NTSB Narrative Summary Released at Completion of Accident

THE PILOT SAID, AND GROUND WITNESSES CONFIRMED, THAT HE LANDED IN A 15 KNOT TAILWIND ON THE APPROACH END OF THE RUNWAY. WHEN THE PILOT APPLIED THE BRAKES TO STOP THE GLIDER, NO RESISTANCE WAS FELT ON THE BRAKE CONTROL HANDLE AND THE GLIDER WOULD NOT SLOW DOWN. THE PILOT SAID THAT WHEN HE KNEW HE COULD NOT STOP PRIOR TO OVER RUNNING THE END OF THE RUNWAY HE STEERED THE AIRCRAFT TOWARD A WOODEN WALL OF A COMMERCIAL BUILDING INSTEAD OF LETTING THE AIRCRAFT CONTINUE TOWARD A CHAIN LINK FENCE. AN FAA AIRWORTHINESS INSPECTOR EXAMINED THE EXPERIMENTAL GLIDER AND FOUND THAT A 1.6MM STEEL CABLE WHICH RUNS BETWEEN THE COCKPIT BRAKE HANDLE AND THE MAIN WHEEL BRAKE ACTUATOR HAD SEPARATED. THE INSPECTOR REPORTED THAT THE REASON FOR THE CABLE FAILURE COULD NOT BE DETERMINED.

NTSB Probable Cause Narrative

THE FAILURE OF THE BRAKES DUE TO A SEPARATION OF THE BRAKE CABLE FOR UNDETERMINED REASONS. A FACTOR IN THE ACCIDENT WAS THE TAILWIND CONDITION DURING THE LANDING ROLLOUT.

Event Information

Type of Event Accident
Event Date 11/14/1992
Event Day of the Week Saturday
Time of Event 1500
Event Time Zone Pacific Standard Time
Event City CALISTOGA
Event State CALIFORNIA
Event Country --
Zipcode of the event site 94515
Event Date Year 1992
Event Date Month 11
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport CALISTOGA GLIDER PORT
Event Location Nearest Airport ID O58
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 350
Weather Briefing Completeness Unknown
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 Day
Lowest Ceiling Height 0
Lowest Non-Ceiling Height 0
Sky/Lowest/Cloud Conditions Clear
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 30
Air Temperature at event time (in degrees celsius) 26
Dew Point at event time (in degress fahrenheit) --
Wind Direction (degrees magnetic) 90
Variable Wind Indicator Unknown
Wind Speed (knots) 15
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 1
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 756
NTSB Notification Source --
NTSB Notification Date Nov 14 1992 12:00AM
NTSB Notification Time 1615
Fiche Number and/or location -used to find docket information 48167
Date of most recent change to record Dec 11 2000 3:27PM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N360GG
NTSB Number LAX93LA039
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 Glaser-Dirks
Aircraft Model DG400
Aircraft Series Identifier DG400
Aircraft Serial Number 4-276
Certified Max Gross Weight 1058
Aircraft Category Glider
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 1
Number of Engines 0
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Apr 8 1992 12:00AM
Airframe hours since last inspection 52
Airframe Hours 162
ELT Installed No
ELT Activated Unknown
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name GARY B. GAMMAL
Aircraft Owner Street Address 63 SECOND STREET
Aircraft Owner City SONOMA
Aircraft Owner State CA
Aircraft Owner Country
Aircraft Owner Zipcode 96476
Operator is an individual? --
Operator Name GARY B. GAMMAL
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address 63 SECOND STREET
Operator City SONOMA
Operator State CA
Operator Country
Operator Zip code 96476
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 Yes
Departure Airport Code O58
Departure City
Departure State
Departure Country
Departure Time 1400
Departure Time Zone PST
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code O58
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 10:35AM
User who most recently changed record dbo
Since inspection or accident --
Event Location Runway Number and Location 29
Runway Length 2600
Runway Width 20
Sight Seeing flight No
Air Medical Flight No
Medical Flight --