CHI88FA190

NTSB accident investigation · Mcdonnell Douglas 269B · Braceville, IL · August 2, 1988

Accident · FatalField investigationFinal report
Date
August 2, 1988
Place
Braceville, IL
Injuries
2 fatal
Damage
Destroyed
Phase of flight
Unknown
Aircraft
N9522FMcdonnell Douglas 269B
Weather
Visual (VMC) · Not reported
Status
Completed · report January 31, 1990
Report
Approved by Office Director
FAA report
19880802030149A
Case key
13959

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

Conducting maneuvering flight the PIC failed to monitor the helicopter systems and allowed the main rotor RPM to decay to the point where it would not produce enough lift to sustain flight.

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 flightUnknown
Rotor rpm - not maintainedPilot in commandCause
Descent - uncontrolled
In flight collision with terrain/waterDescent - uncontrolled

Aircraft

Registration
N9522F
Reported as
Mcdonnell Douglas 269B
Category
Helicopter
Serial number
58-0364
Airframe hours
1,112
Engine
Lycoming HIO-360-A1A, 180 horsepower, reciprocating
Damage
Destroyed
Flight
Personal · Part 91
Operator
Sportflight Helicopter Inc.
Registered owner
Sportflight Helicopter Inc
Airworthiness certificate
Standard, Normal
Last inspection
100 hour · June 18, 1988
Departed
ARR · Aurora, IL
Destination
ARR

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
31
Certificate
Commercial
Medical
Class 2, Valid Medical--no waivers/lim.
Seat
Left
Flight hours
178 total · 178 in this make and model · 137 as pilot in command · 17 in the last 90 days · 5 in the last 30 days

Weather

Conditions
Visual (VMC) · Not reported
Observed at
ARR

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 N9522F · 1

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