NYC83FA052

NTSB accident investigation · Robinson R22 · Milford, CT · January 8, 1983

Accident · No injuriesField investigationFinal report
Date
January 8, 1983, 14:00 local (19:00 UTC)
Place
Milford, CT
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Enroute
Aircraft
N9017YRobinson R22
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
FAA report
19830108005909A
Case key
35025

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 engine powerCruise - normal
Reason for occurrence undeterminedCause
Airframe/component/system failure/malfunctionCruise
Electrical system,electric wiring - disconnectedFactor
Maintenance,installation - improperFactor
Electrical system,alternator - inoperativeFactor
Electrical system,battery - corrodedFactor
Maintenance - inadequateOther maintenance personnelFactor
Electrical system,battery - output lowFactor
Warning system(other) - inoperativeFactor
Forced landingLanding - flare/touchdown
Autorotation - performedPilot in commandFactor
On ground/water collision with objectLanding - flare/touchdown
Terrain condition - high obstruction(s)Factor
Object - downhillFactor
Object - vehicleFactor
Maneuver - performedPilot in command(cfi)Factor
Object - utility poleFactor
Roll overLanding - flare/touchdown

Analysis

The helicopter collided with a telephone pole during an autorotation forced landing after an engine malfunction. The aircraft was cruising at 500 feet when there was an audible decrease in main rotor and engine RPM. The rotor RPM was between 80-85 percent when the instructor pilot took control from the student. During an autorotative landing, the instructor maneuvered to avoid wires while landing on a downhill street, away from automobile traffic. The autorotation was almost complete when the rotor struck a telephone pole and rolled the aircraft on its side. The low RPM warning horn and caution light did not work as programmed. The battery terminal were found corroded and the battery voltage was found to be low. Electrical wire #19 was found disconnected from the alternator switch where the wire had been soldered to the switch. An examination revealed that the solder adhesion was good, but the wire had not been passed thru the terminal post & wrapped before it was soldered. No other preimpact malfunctions or failures were found.

Aircraft

Registration
N9017Y
Reported as
Robinson R22
Category
Helicopter
Serial number
0016
Airframe hours
1,087
Engine
Lycoming O-320-A2B, 150 horsepower, reciprocating
Damage
Substantial damage
Flight
Instructional · Part 91
Operator
Kelaire
Registered owner
Airking Industries, Inc.
Airworthiness certificate
Standard, Normal
Last inspection
100 hour · August 23, 1982 · 90 hours before
Departed
7B9 · Ellington, CT
Destination
BDR · Stratford, CT
Airport
BDR · Sikorski Memorial

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
30
Certificates
Flight instructor, Commercial
Airplane ratings
Single-engine land
Medical
Class 2, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
1,450 total · 1,175 in this make and model · 1,400 as pilot in command · 100 in the last 90 days · 50 in the last 30 days · 3 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
310° at 16 knots
Visibility
20 statute miles
Lowest ceiling
None
Temperature
46 °F, dew point 19 °F
Altimeter
30.00 inHg
Observed at
BDR, 3 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.