MIA06CA096

NTSB accident investigation · Eurocopter Deutschland EC135T2 · Bonifay, FL · April 21, 2006

Accident · Minor injuriesData collectionFinal report
Date
April 21, 2006, 03:06 local (08:06 UTC)
Place
Bonifay, FL
Injuries
1 minor, 2 uninjured
Damage
Substantial damage
Phase of flight
Initial climb
Aircraft
N914EFEurocopter Deutschland EC135T2
Weather
Visual (VMC) · Night
Status
Completed · report August 29, 2006
Report
Approved by Office Director
Parties
FSDO-09 Birmingham, Alabama
FAA report
20060421005089A
Case key
63573

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 failure to maintain main rotor rpm and proper descent rate resulting in a hard landing. A related factor in this accident was inadvertent encounter with clouds.

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 encounter with weatherTakeoff - initial climb
Weather condition - cloudsFactor
Hard landingDescent
Rotor rpm - not maintainedPilot in commandCause
Proper descent rate - not maintainedPilot in commandCause

Analysis

The pilot stated that the helicopter was brought to a hover and began acceleration down runway 19 for the takeoff. At approximately 100 feet above the ground, while at 100 kts, with no visible warning, he entered clouds but the runway was still visible underneath. He started to abort and began a level deceleration. Immediately afterwards he lowered the collective, and the paramedic in the front seat said " Rotor RPM" and he looked inside to see what was happening. When he looked back outside the helicopter, about a second later, his first visible reference was trees and bushes rapidly approaching. He pulled max torque and within 1 or 2 seconds the helicopter landed level and hard, just off the side at the very end of the runway. The helicopter bounced into the air after the impact. He brought the helicopter to a hover and noted the helicopter was dangerously close to bushes and trees. He maneuvered the helicopter away from the tree line toward the runway and landed at the helipad. After landing, the right rear of the helicopter was noted lower than normal. Everyone onboard exited the helicopter without assistance. The operator stated that there were no mechanical failures or malfunctions with the helicopter or any of its systems prior to the accident. The Federal Aviation Administration inspector who responded to the accident stated that the landing skids were splayed outwards with the apparent appearance of a hard landing. Damage to the helicopter was noted to the bottom of the enclosure surrounding the tail rotor blade.

Factual narrative

On April 21, 2006, about 0306 central daylight time, a Eurocopter EC135T2, N914EF, registered to Fifth Third Leasing Co. and operated by CJ Systems Aviation Group, as a Title 14 CFR Part 91 positioning flight, had a hard landing at the Tri-County Airport Bonifay, Florida. Visual meteorological conditions prevailed and a company flight plan was filed. The commercial-rated pilot and one of the two paramedics onboard were not injured, the second paramedic received minor injuries, and the helicopter incurred substantial damage. The flight was originating at the time.

The pilot stated that the helicopter was brought to a hover and began acceleration down runway 19 for the takeoff. At approximately 100 feet above the ground, while at 100 kts, with no visible warning, he entered clouds but the runway was still visible underneath. He started an abort and began a level deceleration. Immediately after he lowered the collective the paramedic in the front seat said " Rotor RPM" and he looked inside to see what was happening. When he looked back outside the helicopter, about a second later, his first visible reference was trees and bushes rapidly approaching. He pulled max torque and within 1 or 2 seconds the helicopter landed level and hard, just off the side at the very end of the runway. The helicopter bounced into the air after the impact. He brought the helicopter to a hover and noted the helicopter was dangerously close to bushes and trees. He maneuvered the helicopter away from the tree line toward the runway and landed at the helipad. After landing, the right rear of the helicopter was noted lower then normal. Everyone onboard exited the helicopter without assists. The operator stated there were no mechanical failures or malfunctions to the helicopter or any of its systems prior to the accident.

The Federal Aviation Administration inspector who responded to the accident stated that the landing skids were splayed outwards with the apparent appearance of a hard landing. Damage to the helicopter was noted to the bottom of the enclosure surrounding the tail rotor blade.

Aircraft

Registration
N914EF
Reported as
Eurocopter Deutschland EC135T2
Category
Helicopter
Serial number
0440
Engine
Turbomeca Arrius 2B2, turbo shaft
Damage
Substantial damage
Flight
Positioning · Part 91
Operator
CJ Systems Aviation Group
Registered owner
Fifth Third Leasing Co.
Airworthiness certificate
Standard, Normal
Departed
Bonifay, FL
Destination
K54J · DeFuniak Spring, FL
Flight plan
Company VFR
Airport
1J0 · Tri-County Airport, runway 19, 4,000 × 75 ft, asphalt

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
45
Certificate
Commercial
Instrument ratings
Helicopter
Medical
Class 2
Last flight review
April 1, 2006
Flight hours
4,316 total · 12 in this make and model · 12 in the last 90 days · 7 in the last 30 days

Weather

Conditions
Visual (VMC) · Night
Wind
210° at 5 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
68 °F, dew point 64 °F
Altimeter
30.00 inHg
Observed at
DHN

Docket · 4

The files NTSB released with the investigation on May 24, 2006, on NTSB’s docket system: statements, records, photos and specialists’ reports. 571 KB in all.

FAA reports on this event · 1

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