CHI87DEP10

NTSB accident investigation · Robinson Avid Flyer · Tomah, WI · July 21, 1987

Accident · Serious injuriesFinal report
Date
July 21, 1987, 18:00 local (23:00 UTC)
Place
Tomah, WI
Injuries
1 serious
Damage
Destroyed
Phase of flight
Approach
Aircraft
N228MCRobinson Avid Flyer
Weather
Visual (VMC) · Day
Status
Completed · report April 24, 1989
Report
Approved by Office Director
FAA report
19870721037889A
Case key
13581

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.

Loss of control - in flightApproach - vfr pattern - base turn
In-flight planning/decision - improperPilot in commandCause
Airspeed - not maintainedPilot in commandCause
Stall - inadvertentPilot in commandCause
Lack of total experience in type of aircraftPilot in commandFactor
In flight collision with terrain/waterDescent - uncontrolled

Analysis

The homebuilt, hiwing acft had just been assembled by the owner/plt & was readied for its 1st flt. After takeoff from rwy 25, the acft entered a climb, turned back over the arpt & crossed over the rwy. Subsequently, it was maneuveredabout 500 to 800 ft south of the rwy, in the vicinity of a left base turn to rwy 25. While in a left turn, the bank angle increased to about 60 deg & the acft descended to the ground & crashed. It struck the ground 486 ft short of rwy 25 on a hdg of 270 deg. The plt was seriously injured & could not remember details of the acdnt. He stated he could not get full power from the eng. However, no specific problems were found during an exam of the eng, except that deposits in the front cylinder were indicative of a slightly rich fuel mixture.

Aircraft

Registration
N228MC
Reported as
Robinson Avid Flyer
Category
Airplane, amateur-built
Serial number
KIT #228
Airframe hours
1
Engine
Rotax 532, 64 horsepower, reciprocating
Damage
Destroyed
Flight
Part 91
Registered owner
David B. Robinson
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Unknown · July 14, 1987 · 3 hours before
Airport
Y72 · Bloyer Field, runway 24, 3,580 × 40 ft, asphalt

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
42
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
101 total · 74 as pilot in command · 3 in the last 90 days · 2 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
210° at 4 knots
Visibility
8 statute miles
Lowest ceiling
None
Temperature
90 °F, dew point 66 °F
Altimeter
30.00 inHg
Observed at
VOK, 11 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.