DEN86FA210

NTSB accident investigation · Burkhart Grob G-102 Astir CS · Black Forest, CO · July 26, 1986

Accident · Serious injuriesField investigationFinal report
Date
July 26, 1986, 13:30 local (19:30 UTC)
Place
Black Forest, CO
Injuries
1 serious
Damage
Destroyed
Phase of flight
Maneuvering
Aircraft
N144SSBurkhart Grob G-102 Astir CS
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
FAA report
19860726035029A
Case key
16838

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

On this page

Sequence of events

NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.

In flight encounter with weatherManeuvering
Weather condition - thunderstormFactor
Weather condition - lightningFactor
Weather condition - turbulence(thunderstorms)Factor
Preflight briefing service - not obtainedPilot in commandFactor
Diverted attentionPilot in commandFactor
In-flight planning/decision - delayedPilot in commandFactor
Forced landingDescent - normal
In flight collision with terrain/waterLanding - flare/touchdown
Weather condition - unfavorable windFactor
Proper alignment - not selectedPilot in commandFactor
Compensation for wind conditions - not performedPilot in commandCause

Analysis

The glider plt, took off at 1155 and was towed to an alt of 10,200 ft MSL and released. The plt said that a rapidly developing thunderstorm cut off his route back to the glider port and he was forced to make an off airport landing at about 1300. The plt said that during the turn to final apch, 'a wind shift put me down.'

Aircraft

Registration
N144SS
Reported as
Burkhart Grob G-102 Astir CS (G-102 ASTI)
Category
Glider
Serial number
1367
Airframe hours
453
Engine
unknown
Damage
Destroyed
Flight
Personal · Part 91
Registered owner
Black Forest Soaring Society,
Airworthiness certificate
Standard, Normal; Standard, Aerobatic; Standard, Utility
Last inspection
Annual · March 6, 1986 · 1,286 hours before
Departed
CO26 · Black Forest, CO

Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
49
Certificate
Private
Seat
Front
Flight hours
289 total · 54 in this make and model · 10 in the last 90 days · 8 in the last 30 days · 2 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
170° at 15 knots
Visibility
65 statute miles
Lowest ceiling
None
Temperature
81 °F, dew point 43 °F
Altimeter
30.00 inHg
Observed at
COS, 19 nm away

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.