Shangri-La Airport
Aircraft Accident/Incident Report

Afton, Oklahoma 74331
Monday, May 9, 1983 18:50 CDT

NTSB Narrative Summary Released at Completion of Accident

AFTER TOUCHDOWN THE PLT APPLIED BRAKES TO SLOW THE ACFT IN ORDER TO TURN OFF THE MID-FIELD EXIT, BUT THE ACFT WAS GOING TOO FAST FOR THE TURN. THE PLT STATED HE FELT THE BRAKES BEGIN TO BE INEFFECTIVE AT THIS POINT. HE THEN DECIDED TO LET THE ACFT ROLL TO THE END OF THE RWY. THE BRAKES WOULD NOT HOLD WHEN HE APPLIED THEM NEAR THE END. THE PLT THEN ADDED FULL POWER IN ORDER TO PANCAKE THE ACFT INTO THE LAKE OFF THE END OF THE RWY. THE ACFT STRUCK THE WATER 75-100 YDS FROM SHORE. THE BRAKES WERE EXAMINED & THE BRAKE SYSTEM WAS CAPABLE OF OPERATION. HOWEVER, BOTH BRAKE DISKS WERE WORN BEYOND ALLOWABLE LIMITS. THE LEFT DISC MEASURED 0.403 INCH & THE RIGHT DISC MEASURED 0.401 INCH. MINUMUM IS 0.445. IN ADDITION,THE DISCS CONTAINED 'BLUE' SPOTS ON THEIR SURFACE INDICATING THAT THEY HAD BEEN SEVERELY OVERHEATED DURING THE LANDING.

NTSB Probable Cause Narrative

Not Yet Reported

Event Information

Type of Event Accident
Event Date 5/9/1983
Event Day of the Week Monday
Time of Event 1850
Event Time Zone Central Daylight Time
Event City AFTON
Event State OKLAHOMA
Event Country --
Zipcode of the event site 74331
Event Date Year 1983
Event Date Month 5
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport SHANGRI-LA
Event Location Nearest Airport ID OK33
Indicates whether the acc/inc occurred off or on an airport Off Airport/Airstrip
Distance from airport in statute miles --
Degrees magnetic from airport 170
Airport Elevation 791
Weather Briefing Completeness Unknown
Investigator's weather source Witness
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) 25
Air Temperature at event time (in degrees celsius) 21
Dew Point at event time (in degress fahrenheit) --
Wind Direction (degrees magnetic) 180
Variable Wind Indicator Unknown
Wind Speed (knots) 10
Wind Velocity Indicator Unknown
Wind Gust Indicator Not Gusting
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 2
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 2281
NTSB Notification Source --
NTSB Notification Date --
NTSB Notification Time 0
Fiche Number and/or location -used to find docket information 22620
Date of most recent change to record Jan 2 2001 9:15AM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N2053G
NTSB Number FTW83LA229
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 BEECH
Aircraft Model B60
Aircraft Series Identifier B60
Aircraft Serial Number B-489
Certified Max Gross Weight 6725
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 2
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Mar 2 1983 12:00AM
Airframe hours since last inspection 30
Airframe Hours 1166
ELT Installed Yes
ELT Activated Unknown
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name TCP CORP
Aircraft Owner Street Address 1ST NAT'L. BANK, P.O. BOX 428
Aircraft Owner City ALEX
Aircraft Owner State OK
Aircraft Owner Country
Aircraft Owner Zipcode 73002
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 No
Departure Point Same as Event No
Departure Airport Code CHK
Departure City CHICKASHA
Departure State OK
Departure Country
Departure Time 0
Departure Time Zone
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 17
Runway Length 4000
Runway Width 60
Sight Seeing flight No
Air Medical Flight No
Medical Flight --