CHI00LA250

NTSB accident investigation · Bell 206B · Marengo, IL · August 4, 2000

Accident · Serious injuriesLimited investigationFinal report
Date
August 4, 2000, 17:15 local (22:15 UTC)
Place
Marengo, IL
Injuries
1 serious
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N7JRBell 206B
Weather
Visual (VMC) · Day
Status
Completed · report October 9, 2001
Report
Approved by Office Director
FAA report
20000804014109A
Case key
49947

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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Probable cause

the simulated autorotation performed by the pilot at too low an altitude and airspeed.

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 collision with terrain/waterLanding
Autorotation - performedPilot in commandCause
Altitude - lowPilot in commandFactor
Airspeed - lowPilot in commandFactor

Analysis

The helicopter impacted terrain during a simulated autorotation. The pilot reported that he began the autorotation at a low altitude and low airspeed.

Factual narrative

On August 4, 2000, at 1715 central daylight time, a Bell 206B, N7JR, was substantially damaged on impact with terrain during a practice emergency autorotation from an altitude of 30-40 feet agl at a private heliport near Marengo, Illinois. Visual meteorological condition prevailed at the time of the accident. The 14 CFR Part 91 personal flight was not operating on a flight plan. The pilot sustained serious injuries. The local flight originated from the private heliport at 1600.

In a written statement, the pilot reported the following,:

"The flight originated at IL 68 RLA, Barrington, IL, Friday, August 4, 2000, at approximately 1600 local time."

"I flew to Wind Rose (Krause) RLA, located just SW of Routes 23 and 90 in Marengo, IL. At this location is a 2900' x 300' grass airstrip. I am the owner of both RLA's.

"I flew to Marengo to practice auto rotations from flight in preparation for recurrent training, scheduled with an instructor the next day."

"I began the first auto rotation at 1500' AGL and recovered at approximately 50' with an engine recovery. The second auto rotation was the same as the first."

"The third auto rotation was begun at 500' AGL keeping the two needles close together with a forward arispeed of 60 mph. The auto rotation proceeded normally until flareout and recovery of the flareout at 50', at which time the needles split and I descended at a rapid rate to the ground. The helicopter came to rest in a flat postion with the landing skids splayed but level and upright.

"Weather conditions were good: Wind 0; Temperature 85 F; Ceiling unlimited; Visibility 10 miles."

The pilot's safety recommendation was, "Begin auto rotation from a higher altitude".

According to a statement by a Federal Aviation Administration Inspector, "...[The pilot] stated that he had completed two autos from approximately 1500 AGL with power recovery without incident. [The pilot] then stated that he did the next auto at a LOW altitude. He would not say what that altitude was. He did say the helicopter was at a near zero airspeed when he initiated it."

Aircraft

Registration
N7JR
Reported as
Bell 206B
Category
Helicopter
Serial number
1131
Airframe hours
1,637
Engine
Allison 250-C20, 400 horsepower, turbo shaft
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Rose Packing Incorporated
Airworthiness certificate
Standard, Normal
Last inspection
Annual · October 8, 1999 · 25 hours before
Departed
PVT · Barrington, IL
Destination
PVT
Airport
PVT · Windrose

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
73
Certificate
Commercial
Airplane ratings
Multi-engine land, Single-engine sea, Single-engine land, Multi-engine sea
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--w/ waivers/lim
Seat
Right
Flight hours
10,200 total · 1,200 in this make and model · 9,760 as pilot in command · 50 in the last 90 days · 15 in the last 30 days · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
Variable at 4 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
169 °F, dew point 127 °F
Altimeter
30.00 inHg
Observed at
RFD, 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.