Aircraft Accident/Incident Report

Hobbs, New Mexico 88240
Wednesday, July 8, 1987 14:00 MDT

NTSB Narrative Summary Released at Completion of Accident

THE PVT PLT WAS FLYING IN A NATIONAL SOARING CONTEST. THE GLIDER WAS TOWED TO 2000 FEET AGL AND RELEASED. THE PLT REPORTED MAKING A CLIMBING RIGHT TURN AFTER RELEASE, HOWEVER HE NOTICED THAT THE CONTROL STICK WAS MORE AFT THAN NORMAL. AS THE FLIGHT PROGRESSED, THE STICK CAME TO A FULL AFT POSITION. THE PLT WAS UNABLE TO GET ANY UP ELEVATOR CONTROL RESPONSE. THE ALTITUDE HAD DETERIORATED TO 1300 FEET AGL. THE PLT BAILED OUT SUCCESSFULLY. THE ACFT INVERTED, ENTERED A FLAT SPIN AND CRASHED. THE PLT REPORTED THAT HE BELIEVED THE ELEVATOR CONTROL WAS INADVERTENTLY ASSEMBLED IMPROPERLY. EXAMINATION OF THE WRECKAGE DID NOT REVEAL EVIDENCE TO EXPLAIN REPORTED LOSS OF ELEVATOR CONTROL.

NTSB Probable Cause Narrative

Not Yet Reported

Event Information

Type of Event Accident
Event Date 7/8/1987
Event Day of the Week Wednesday
Time of Event 1400
Event Time Zone Mountain Daylight Time
Event City HOBBS
Event State NEW MEXICO
Event Country --
Zipcode of the event site 88240
Event Date Year 1987
Event Date Month 7
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport
Event Location Nearest Airport ID
Indicates whether the acc/inc occurred off or on an airport Off Airport/Airstrip
Distance from airport in statute miles 0
Degrees magnetic from airport 0
Airport Elevation --
Weather Briefing Completeness Unknown
Investigator's weather source Unknown
Time of the weather observation 1347 Mountain Daylight Time
Direction of event from weather observation facility (degrees) 180
Weather Observation Facility ID HOB
Elevation of weather observation facility 3659
Distance of event from weather observation facility (units?) 2
Time Zone of the weather observation MDT
Lighting Conditions Day
Lowest Ceiling Height 25000
Lowest Non-Ceiling Height 3500
Sky/Lowest/Cloud Conditions Scattered
Sky Condition for Lowest Ceiling Broken
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 20
Air Temperature at event time (in degrees celsius) 30
Dew Point at event time (in degress fahrenheit) 18
Wind Direction (degrees magnetic) 150
Variable Wind Indicator Unknown
Wind Speed (knots) 12
Wind Velocity Indicator Unknown
Wind Gust Indicator Not Gusting
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 30
Density Altitude (feet) 6500
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) 1334
NTSB Notification Source --
NTSB Notification Date Jul 8 1987 12:00AM
NTSB Notification Time 1500
Fiche Number and/or location -used to find docket information 34691
Date of most recent change to record Dec 13 2000 2:35PM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N71JD
NTSB Number DEN87LA175
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 SCHEMPP-HIRTH
Aircraft Model NIMBUS II
Aircraft Series Identifier NIMBUS II
Aircraft Serial Number 45
Certified Max Gross Weight 816
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 --
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Jun 1 1987 12:00AM
Airframe hours since last inspection --
Airframe Hours 490
ELT Installed No
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name STABLER, JAMES M
Aircraft Owner Street Address 3536 GRENADA
Aircraft Owner City DALLAS
Aircraft Owner State TX
Aircraft Owner Country
Aircraft Owner Zipcode 75205
Operator is an individual? --
Operator Name JAMES M. STABLER
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address 3536 GRANADA
Operator City DALLAS
Operator State TX
Operator Country
Operator Zip code 75205
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 HBB
Departure City HOBBS
Departure State NM
Departure Country
Departure Time 1345
Departure Time Zone MDT
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code
Destination City
Destination State
Destination Country
Specific Phase of Flight Descent
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 0
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --