CHI86LA208

NTSB accident investigation · Schleicher ASW-20 · Ionia, MI · August 17, 1986

Accident · No injuriesLimited investigationFinal report
Date
August 17, 1986, 17:30 local (21:30 UTC)
Place
Ionia, MI
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Approach
Aircraft
N12GHSchleicher ASW-20
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
FAA report
19860817040589A
Case key
13512

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

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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.

UndershootApproach - vfr pattern - final approach
In-flight planning/decision - inadequatePilot in commandCause
Planned approach - inaccuratePilot in commandCause
Distance - misjudgedPilot in commandCause
In flight collision with terrain/waterDescent - uncontrolled

Analysis

According to the plt, at approximately 20 miles south of Ionia county airport, Ionia, Michigan, he used frontal zone lift to climb to 4600 MSL (3800 AGL), and he encountered no further lift. The plt stated that he anticipated an increase in wind gradient during descent and while on a one mile final he still had visual confidence in making the airport. According to the plt, he then experienced severe sink and struck a bush and a large rock before coming to rest approximately 1/4 mile short of rwy 36 at Ionia county airport.

Aircraft

Registration
N12GH
Reported as
Schleicher ASW-20
Category
Glider
Serial number
20703
Airframe hours
165
Engine
unknown
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Eldon G. Hammond
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Annual · April 18, 1986
Airport
Y70 · Ionia County, runway 36, 4,125 × 400 ft, grass/turf

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
51
Certificates
Airline transport, Flight instructor, Commercial
Airplane ratings
Single-engine sea, Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 1, Valid Medical--w/ waivers/lim
Flight hours
33,333 total · 3,333 in this make and model · 11,708 as pilot in command · 220 in the last 90 days · 3 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
360° at 5 knots
Visibility
20 statute miles
Lowest ceiling
None
Temperature
70 °F, dew point 59 °F
Altimeter
30.00 inHg
Observed at
GRR, 20 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.