N2253U

Substantial
Minor

BRANTLY B-2BS/N: 412

Accident Details

Date
Thursday, August 29, 2013
NTSB Number
CEN13LA546
Location
Rothbury, MI
Event ID
20130912X51926
Coordinates
43.503649, -86.350199
Aircraft Damage
Substantial
Highest Injury
Minor
Fatalities
0
Serious Injuries
0
Minor Injuries
2
Uninjured
0
Total Aboard
2

Probable Cause and Findings

The pilot’s failure to maintain helicopter control while turning to avoid trees during an aborted takeoff in gusting wind conditions.

Aircraft Information

Registration
N2253U
Make
BRANTLY
Serial Number
412
Engine Type
Reciprocating
Year Built
1964
Model / ICAO
B-2BBRB2
Aircraft Type
Rotorcraft
No. of Engines
1

Registered Owner (Historical)

Name
SALE REPORTED
Address
5095 WI-21
Status
Deregistered
City
OSHKOSH
State / Zip Code
WI 54904
Country
United States

Analysis

On August 29, 2013, at 1643 eastern daylight time, a Brandtly B2B helicopter, N2253U, registered to and operated by the pilot, was substantially damaged when it impacted the ground after takeoff from a private field near Rothbury, Michigan. The commercial pilot and passenger received minor injuries. The personal flight was conducted under the provisions of 14 Code of Federal Regulations Part 91. Visual meteorological conditions prevailed in the vicinity and no flight plan was filed.

The pilot reported that he initiated takeoff in light and variable wind conditions from the middle of a private field. He hover taxied downwind to the east end of the field before commencing the takeoff to the west. During the takeoff, the pilot realized that the helicopter would not clear a tree line located at the edge of the field. He initiated a pedal turn to the left away from the trees to attempt to abort the takeoff. He stated that during the left pedal turn, a gust of wind forced the helicopter toward the ground. The helicopter impacted the ground hard near level attitude on an uphill slope. The main rotor blade struck the ground, the helicopter rolled, and came to rest on its left side.

The open field was approximately 750 feet in length (east to west) and 150 feet wide. The field was surrounded by pines trees approximately 30 to 40 feet tall with larger growth on the west end. Performance charts from the helicopter's flight manual indicated that the helicopter should have had the takeoff climb performance to clear the trees during takeoff. Examination of the helicopter by an FAA inspector did not reveal any mechanical anomalies with the flight controls and engine. The pilot reported that the helicopter was operating normally prior to the accident.

Data Source

Data provided by the National Transportation Safety Board (NTSB). For more information on this event, visit the NTSB Records Search website. NTSB# CEN13LA546