NYC95LA107

NTSB accident investigation · Enstrom 280C · Newark, DE · May 13, 1995

Accident · No injuriesLimited investigationFinal report
Date
May 13, 1995, 11:05 local (15:05 UTC)
Place
Newark, DE
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Maneuvering
Aircraft
N122HAEnstrom 280C
Weather
Visual (VMC) · Day
Status
Completed · report December 4, 1995
Report
Approved by Office Director
Case key
38957

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 pilot's improper use of throttle and collective controls, resulting in the loss of rotor rpm and the inflight loss of control.

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
Throttle/power control - improper use ofPilot in commandCause
Collective - improper use ofPilot in commandCause
Rotor rpm - not maintainedPilot in command
In flight collision with terrain/waterDescent - uncontrolled
Terrain condition - high vegetation

Analysis

The pilot did a steep approach and came to a hover over an area of high vegetation. She then started a right 90 degree turn to hover taxi to the helipad. The pilot stated the helicopter 'went into 360 degree spins in a matter of seconds,' landed in brush, and rolled onto its left side. The pilot told the FAA that while in the turn to the helipad she neglected to add throttle before pulling up on the collective (power), noticed the RPM was low and could not make a recovery. The pilot did not report any mechanical problems, and no discrepancies were found with the helicopter or the engine. The pilot's total flight hours at the time of the accident were 107.5, all in this make and model helicopter, and 26.7 hours were as pilot-in-command.

Factual narrative

On May 13, 1995, about 1105 eastern daylight time, an Enstrom 280C, helicopter, N122HA, collided with the terrain, while at a hover at a heliport near Newark, Delaware. The private pilot was not injured. The helicopter was substantially damaged. Visual meteorological conditions prevailed, and no flight plan had been filed. The local, personal flight was being conducted under 14 CFR Part 91.

The pilot stated, on the NTSB Form 6120.1/2, that she had performed a "steep approach" heading to the north and came to a hover over an area of high vegetation. She then started a right 90 degree turn to hover taxi to the helipad. The pilot stated that the helicopter "went into 360 degree spins in a matter of seconds," landed in brush, and then rolled onto its left side.

According to the FAA Inspector's statement:

The pilot stated, that while in a hover prior to landing, while in a turn to the [helipad] she neglected to add throttle before pulling up on the collective (power), noticed the rpm was low and could not make a recovery. The helicopter landed and rolled slowly onto its left side...A review of maintenance records...[revealed] no discrepancies...nor did the pilot report any mechanical problems with the helicopter.

The pilot's total flight time at the time of the accident was 107.5 hours, all in this make and model helicopter, with 26.7 hours were as pilot-in-command.

The Wilmington weather, reported at 1055, was; clear below 12,000 feet, visibility 10 miles, wind 010 degrees at 5 knots, temperature 71 degrees F, dew point 51 degrees F, altimeter 29.94 inches Hg.

Aircraft

Registration
N122HA
Reported as
Enstrom 280C
Category
Helicopter
Serial number
1067
Airframe hours
3,595
Engine
Lycoming HIO-360-E1AD, 205 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Horizon Helicopter
Airworthiness certificate
Standard, Normal
Last inspection
100 hour · April 13, 1995 · 72 hours before

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
52
Certificate
Private
Medical
Class 3, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
108 total · 108 in this make and model · 27 as pilot in command · 14 in the last 90 days · 3 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
10° at 5 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
72 °F, dew point 52 °F
Altimeter
29.00 inHg
Observed at
ILG, 5 nm away

FAA reports on this event · 2

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