NYC86LA239

NTSB accident investigation · Hiller UH12C · E.Conway, NH · September 22, 1986

Accident · No injuriesLimited investigationFinal report
Date
September 22, 1986, 17:45 local (21:45 UTC)
Place
E.Conway, NH
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Maneuvering
Aircraft
N73876Hiller UH12C
Weather
Visual (VMC) · Day
Status
Completed · report March 10, 1988
Report
Approved by Office Director
FAA report
19860922045839A
Case key
30423

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 flightHover
Aircraft handling - improperPilot in commandCause
Hard landingLanding - flare/touchdown
Proper climb rate - not maintainedPilot in commandCause

Analysis

Pilot lost control of the helicopter while at hover then decided to land. However the pilot set the aircraft down hard. The main rotor blade severed the tail.

Aircraft

Registration
N73876
Reported as
Hiller UH12C
Category
Helicopter
Serial number
UH6003
Airframe hours
423
Engine
Franklin 210, 210 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Richard H. Graves
Airworthiness certificate
Standard, Normal
Last inspection
Annual · September 17, 1984 · 54 hours before

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
46
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Valid Medical--no waivers/lim.
Flight hours
62 in this make and model · 20 in the last 90 days · 4 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Temperature
64 °F

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.