Corpus Christie Airport
Aircraft Accident/Incident Report

Corpus Christi, Texas 78406
Tuesady, April 3, 2012 15:55 CDT

NTSB Narrative Summary Released at Completion of Accident

After an uneventful flight, the pilot slowed the helicopter into a stable hover about 15 feet above the landing point. Although the engine continued to operate, the main rotor rpm suddenly decayed and the helicopter landed hard. The pilot, who had over 5,600 flight hours in helicopters, stated that there was no warning before the loss of main rotor drive. The helicopter was in a position whereby power to the rotor system was essential to conducting a safe landing. Examination of the helicopter revealed that the bolt that retains the clutch drive rod end in the clutch pivot fork had sheared, resulting in the clutch disengaging. Once the clutch disengaged, there was no drive to the rotor system, and the helicopter's descent could not be arrested. With the exception of the failed bolt, examination of the entire drive system did not show any preexisting mechanical malfunction or abnormalities that would have precluded normal operation. The helicopter had operated about 1,350 hours since it was new, and the retaining bolt was the original installation. The reason for the failure of the bolt could not be determined.

NTSB Probable Cause Narrative

The failure of the bolt that retained the clutch drive rod end, which resulted in a loss of main rotor drive and a subsequent hard landing.

Event Information

Type of Event Accident
Event Date 4/3/2012
Event Day of the Week Tuesday
Time of Event 1555
Event Time Zone Central Daylight Time
Event City Corpus Christi
Event State TEXAS
Event Country --
Zipcode of the event site 78406
Event Date Year 2012
Event Date Month 4
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 274613N
Event Location Longitude 0973004W
Event Location Airport Corpus Christie
Event Location Nearest Airport ID CRP
Indicates whether the acc/inc occurred off or on an airport On Airport
Distance from airport in statute miles --
Degrees magnetic from airport --
Airport Elevation 44
Weather Briefing Completeness --
Investigator's weather source Weather Observation Facility
Time of the weather observation 1515 Central Daylight Time
Direction of event from weather observation facility (degrees) --
Weather Observation Facility ID CRP
Elevation of weather observation facility 44
Distance of event from weather observation facility (units?) --
Time Zone of the weather observation CDT
Lighting Conditions Day
Lowest Ceiling Height 3600
Lowest Non-Ceiling Height --
Sky/Lowest/Cloud Conditions Clear
Sky Condition for Lowest Ceiling Broken
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) 7
Air Temperature at event time (in degrees celsius) 29
Dew Point at event time (in degress fahrenheit) 22
Wind Direction (degrees magnetic) 160
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 7
Wind Velocity Indicator --
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 29.9
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report METAR KCRP 032051Z 08014G17KT 7SM BKN042 OVC055 30
Event Highest Injury Minor
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries --
Injury Total Fatal --
Injury Total Minor 1
Injury Total None 1
Injury Total Serious --
Injury Total All 1
Investigating Agency NTSB
NTSB Docket Number (internal use) 31701
NTSB Notification Source FAA - San Antonio FSDO
NTSB Notification Date --
NTSB Notification Time --
Fiche Number and/or location -used to find docket information --
Date of most recent change to record Jul 14 2013 11:23PM
User who most recently changed record lema
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N3042D
NTSB Number CEN12LA228
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? No
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name ENSTROM
Aircraft Model 280FX
Aircraft Series Identifier --
Aircraft Serial Number 2128
Certified Max Gross Weight --
Aircraft Category Helicopter
Aircraft Registration Class --
Aircraft is a homebuilt? No
Flight Crew Seats --
Cabin Crew Seats --
Passenger Seats --
Total number of seats on the aircraft 3
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Jan 12 2012 12:00AM
Airframe hours since last inspection --
Airframe Hours 1350
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type Unknown
Aircraft Owner Name TRAVLAND HELICOPTERS INTL INC
Aircraft Owner Street Address PO BOX 2019
Aircraft Owner City ALPINE
Aircraft Owner State TX
Aircraft Owner Country USA
Aircraft Owner Zipcode 79831-2019
Operator is an individual? No
Operator Name TRAVLAND HELICOPTERS INTL INC
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address PO BOX 2019
Operator City ALPINE
Operator State TX
Operator Country USA
Operator Zip code 79831-2019
Operator Code --
Owner has at least one certificate None
Other Operator of large aircraft? No
Certified for Part 133 or 137 Operation --
Operator Certificate Number --
Indicates whether an air carrier operation was scheduled or not --
Indicates Domestic or International Flight --
Operator carrying Pax/Cargo/Mail --
Type of Flying (Per_Bus / Primary) Other Work Use
Second Pilot on Board No
Departure Point Same as Event No
Departure Airport Code EBG
Departure City Edinburg
Departure State TX
Departure Country USA
Departure Time 1630
Departure Time Zone CDT
Destination Same as Local Flt crash at destination city
Destination Airport Code CRP
Destination City Corpus Christi
Destination State TX
Destination Country USA
Specific Phase of Flight --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jul 14 2013 10:11PM
User who most recently changed record lema
Since inspection or accident Time of Accident
Event Location Runway Number and Location N/A
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --