NYC08CA210

NTSB accident investigation · Bell 206L-4 · Philadelphia, PA · June 8, 2008

Accident · No injuriesData collectionFinal report
Date
June 8, 2008, 17:20 local (21:20 UTC)
Place
Philadelphia, PA
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Maneuvering
Aircraft
N94PDBell 206L-4
Defining event
Maneuvering-hover: Collision with terr/obj (non-CFIT)
Weather
Visual (VMC) · Day
Status
Completed · report August 28, 2008
Report
Approved by Office Director
Parties
FAA\FSDO
Case key
68196

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 pilot's failure to maintain aircraft control during hover, which resulted in an inadvertent impact with the ground.

Findings · 1

NTSB’s coded findings. Those marked are part of the probable cause; the rest are factors or other findings. Under each, the cases with the same finding.

Use of equip/info: aircraft controlPersonnel issues › Task performance · PilotAll aircraft: 9,295 casesProbable cause

Sequence of events

The events NTSB coded, in order, by phase of flight. The defining event is the one that best describes the accident. Under each, the cases with the same event anywhere in their sequence.

Analysis

The pilot of the Bell 206L-4 helicopter had completed a simulated engine failure, and was bringing the helicopter to a hover over a grass area, when it impacted the ground from an altitude of approximately 5 feet. The helicopter's tail boom, aft of its attach point was wrinkled, and the tail boom sagged. The pilot stated that he did not experience any mechanical problems with the helicopter. He reported 2,029 hours of total flight experience, which included 1,929 hours in rotorcraft, all in the same make and model as the accident helicopter. Winds reported at the airport, about the time of the accident, were variable at 7 knots.

Factual narrative

The pilot of the Bell 206L-4 helicopter had completed a simulated engine failure, and was bringing the helicopter to a hover over a grass area, when it impacted the ground from an altitude of approximately 5 feet. The helicopter's tail boom, aft of its attach point was wrinkled, and the tail boom sagged. The pilot stated he did not experience any mechanical problems with the helicopter. He reported 2,029 hours of total flight experience, which included 1,929 hours in rotorcraft, all in the same make and model as the accident helicopter. Winds reported at the airport, about the time of the accident, were variable at 7 knots.

Aircraft

Registration
N94PD
Reported as
Bell 206L-4
Category
Helicopter
Serial number
52205
Airframe hours
6,380
Engine
Allison 250-C30, 650 horsepower, turbo shaft
Damage
Substantial damage
Flight
Public aircraft · Part 91
Registered owner
Philadelphia Police Department
Airworthiness certificate
Standard, Normal
Last inspection
100 hour · May 1, 2008
Departed
PNE · Philadelphia, PA
Destination
PNE · Philadelphia, PA
Airport
PNE · Northeast Philadelphia

Flight crew · 2

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
36
Injuries
None
Certificate
Commercial
Airplane ratings
Single-engine land
Medical
Class 2, Without waivers/limitations
Last flight review
June 1, 2007
Seat
Right
Flight hours
2,029 total · 1,929 in this make and model · 108 in the last 90 days · 32 in the last 30 days · 4 in the last 24 hours
Role
Co-pilot
Age
43
Injuries
None
Certificates
Commercial, Flight instructor
Airplane ratings
Single-engine land
Medical
Class 2, Without waivers/limitations
Last flight review
April 1, 2008
Seat
Left
Flight hours
5,022 total · 4,822 in this make and model

Weather

Conditions
Visual (VMC) · Day
Wind
Variable at 7 knots
Visibility
8 statute miles
Lowest ceiling
None
Temperature
97 °F, dew point 68 °F
Altimeter
29.80 inHg
Observed at
PNE