BFO96LA003

NTSB accident investigation · Enstrom F28-280C · Blue Ash, OH · October 6, 1995

Accident · No injuriesLimited investigationFinal report
Date
October 6, 1995, 15:20 local (19:20 UTC)
Place
Blue Ash, OH
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Maneuvering
Aircraft
N51786Enstrom F28-280C
Weather
Visual (VMC) · Day
Status
Completed · report December 19, 1995
Report
Approved by Office Director
FAA report
19951006031299A
Case key
9100

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

On this page

Probable cause

the commercial pilot's failure to maintain clearance from obstacles during hover-taxi operations. Related factors the tailwind, the nearby obstacle, and the misjudged maneuver to avoid obstacles.

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 objectHover
Weather condition - tailwindFactor
Maneuver to avoid obstructions - misjudgedPilot in commandFactor
Object - aircraft parked/standingFactor
Clearance - not maintainedPilot in commandCause

Analysis

The commercial pilot stated that because of obstacles in the vicinity of the helicopter, he decided to hover taxi backwards, then make a left turn for takeoff. He reported that he began to hover taxi with a tailwind of 14 knots, with gusts to 22 knots. The pilot stated that because of the winds, he was focused on the windsock, his flight path and engine RPM, and forgot about the helicopter which was parked behind him. The main rotor struck the parked helicopter as the pilot was turning the helicopter to the left.

Factual narrative

On October 6, 1995, at 1520 eastern daylight time, an Enstrom F28-280C, N51786, registered to New Horizons Helicopters, Cincinnati, Ohio, collided with a unoccupied parked helicopter while hover taxiing prior to takeoff at Gallenstein Park Heliport, in Blue Ash, Ohio. The taxiing helicopter was substantially damaged. The commercial pilot, the sole occupant, received no injuries. The unoccupied helicopter received minor damage. Visual meteorological conditions prevailed and no flight plan had been filed. The flight was conducted under 14 CFR Part 91.

The pilot stated that because of a small hangar to the left of the parked helicopter, a fence in front, and telephone poles and wires to the right, he planned to hover taxi aft, then turn left in order to takeoff. He noted that there was an unoccupied helicopter parked approximately sixty feet aft and right of N51786. The pilot stated that he thought he had enough room between the helicopters to hover taxi as planned. He reported that he "...picked N51786 up off it's cart. As [the taxi] was into a tailwind, I was paying a lot of attention to the windsock and maintaining course and RPM while taxiing in reverse. I forgot the other helicopter was parked behind...and backed into it...I start every afternoon the same way, from the same position, to report afternoon rush hour traffic. The difference today was the second helicopter." Winds were reported to be out of 230 degrees at 14 knots, with gusts to 22 knots.

Aircraft

Registration
N51786
Reported as
Enstrom F28-280C
Category
Helicopter
Serial number
450
Airframe hours
2,229
Engine
Lycoming HIO-360-EIAD, 205 horsepower, reciprocating
Damage
Substantial damage
Flight
Business · Part 91
Registered owner
New Horizons Helicopters, Inc
Airworthiness certificate
Standard, Normal
Last inspection
100 hour · October 4, 1995 · 5 hours before
Departed
22OH
Airport
22OH · Gallenstein Heliport

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
41
Certificates
Private, Commercial
Airplane ratings
Single-engine land
Medical
Class 2, Valid Medical--no waivers/lim.
Seat
Left
Flight hours
6,000 total · 1,000 in this make and model · 5,900 as pilot in command · 240 in the last 90 days · 85 in the last 30 days · 4 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
230° at 14 knots, gusting 22
Visibility
15 statute miles
Lowest ceiling
6,000 ft broken
Temperature
73 °F, dew point 55 °F
Altimeter
29.00 inHg
Observed at
LUK, 9 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 N51786 · 2

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