CHI86FER03

NTSB accident investigation · Hughes 269A (TH-55A) · Lakeville, MN · March 29, 1986

Accident · Minor injuriesFinal report
Date
March 29, 1986, 14:50 local (20:50 UTC)
Place
Lakeville, MN
Injuries
1 minor, 1 uninjured
Damage
Destroyed
Phase of flight
Maneuvering
Aircraft
N10415Hughes 269A (TH-55A)
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
FAA report
19860329008009A
Case key
13319

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.

Loss of control - in flightManeuvering
Weather condition - gusts
Weather condition - high wind
Aircraft handling - not maintainedPilot in commandCause
Altitude - not maintainedPilot in commandCause
In flight collision with terrain/waterDescent - uncontrolled
Roll overDescent - uncontrolled

Analysis

The CFI reported the accident occurred during a demonstration of wind effect during turns around a point. The CFI reported that as the helicopter was turned downwind it began descending from an alt of aprx 200 ft AGL. It continued it's descent until the right skid contacted the terrain and the helicopter rolled over. Strong, gusty winds were reported at the time of the accident.

Aircraft

Registration
N10415
Reported as
Hughes 269A (TH-55A) (269A (TH-5)
Category
Helicopter
Serial number
66-18347
Airframe hours
4,713
Engine
Lycoming HIO-360-B1A, 180 horsepower, reciprocating
Damage
Destroyed
Flight
Instructional · Part 91
Registered owner
Paul A. Dagnon
Airworthiness certificate
Standard, Normal
Last inspection
100 hour · January 16, 1986 · 73 hours before
Departed
LVN · Lakeville, MN

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
35
Certificates
Flight instructor, Commercial
Airplane ratings
Single-engine land
Medical
Class 2, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
2,800 total · 302 in this make and model

Weather

Conditions
Visual (VMC) · Day
Wind
210° at 20 knots, gusting 28
Visibility
20 statute miles
Lowest ceiling
25,000 ft broken
Temperature
81 °F, dew point 50 °F
Altimeter
29.00 inHg
Observed at
MSP, 7 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.

Other investigations on N10415 · 1

Matched to the same aircraft by N-number and date.