Aircraft Accident/Incident Report

Houston, Texas 77546
Thursday, July 14, 2005 8:10 CDT

NTSB Narrative Summary Released at Completion of Accident

While on an extended downwind for an approach to runway 14L, the crew requested to open the left sliding passenger door. The 7,135-hour pilot approved the request and at an altitude of approximately 100 feet above ground level (agl), and while at 55 knots indicated airspeed, the left sliding passenger door exited the helicopter and made contact with all four main rotor blades. The pilot immediately descended to a three-foot agl hover and with no indication of control problems, proceeded approximately 1,800 feet to a helipad and landed. An examination of the sliding door and attaching hardware, by a Federal Aviation Administration inspector, revealed that the lower door guide rail had worn sufficiently enough to allow the door to exit the helicopter when the door handle was placed in the open position.

NTSB Probable Cause Narrative

The separation of the left passenger door due to worn attaching hardware.

Event Information

Type of Event Accident
Event Date 7/14/2005
Event Day of the Week Thursday
Time of Event 810
Event Time Zone Central Daylight Time
Event City Houston
Event State TEXAS
Event Country --
Zipcode of the event site 77546
Event Date Year 2005
Event Date Month 7
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 293116N
Event Location Longitude 0951432W
Event Location Airport --
Event Location Nearest Airport ID --
Indicates whether the acc/inc occurred off or on an airport --
Distance from airport in statute miles --
Degrees magnetic from airport --
Airport Elevation --
Weather Briefing Completeness --
Investigator's weather source Weather Observation Facility
Time of the weather observation
Direction of event from weather observation facility (degrees) --
Weather Observation Facility ID LVJ
Elevation of weather observation facility --
Distance of event from weather observation facility (units?) --
Time Zone of the weather observation --
Lighting Conditions Day
Lowest Ceiling Height --
Lowest Non-Ceiling Height --
Sky/Lowest/Cloud Conditions Clear
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) 9
Air Temperature at event time (in degrees celsius) 27
Dew Point at event time (in degress fahrenheit) 24
Wind Direction (degrees magnetic) --
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) --
Wind Velocity Indicator --
Wind Gust Indicator Unknown
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 29.94
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report --
Event Highest Injury None
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries --
Injury Total Fatal --
Injury Total Minor --
Injury Total None 3
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 18461
NTSB Notification Source FAA ROC
NTSB Notification Date Jul 14 2005 12:00AM
NTSB Notification Time --
Fiche Number and/or location -used to find docket information DMS
Date of most recent change to record Feb 2 2009 1:26PM
User who most recently changed record johb
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N440HH
NTSB Number DFW05CA181
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed Company VFR
Flight plan Was Activated? --
Damage Substantial
Aircraft Fire None
Aircraft Explosion --
Aircraft Manufacturer's Full Name Messerschmitt
Aircraft Model BK-117 B-2
Aircraft Series Identifier --
Aircraft Serial Number 7238
Certified Max Gross Weight 3350
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 6
Number of Engines 2
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection AAIP
Date of Last Inspection Jul 1 2005 12:00AM
Airframe hours since last inspection 15.2
Airframe Hours 7923.5
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name Memorial Hermann Hospital Systems
Aircraft Owner Street Address --
Aircraft Owner City 6411 Fannin St
Aircraft Owner State TX
Aircraft Owner Country USA
Aircraft Owner Zipcode 77030
Operator is an individual? No
Operator Name --
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address --
Operator City --
Operator State --
Operator Country USA
Operator Zip code --
Operator Code GVNA
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) Positioning
Second Pilot on Board No
Departure Point Same as Event No
Departure Airport Code --
Departure City Fresno
Departure State TX
Departure Country USA
Departure Time --
Departure Time Zone --
Destination Same as Local Flt --
Destination Airport Code LVJ
Destination City PEARLAND
Destination State TX
Destination Country USA
Specific Phase of Flight Approach - VFR pattern - downwind
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Feb 2 2009 1:26PM
User who most recently changed record johb
Since inspection or accident Time of Accident
Event Location Runway Number and Location --
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight Yes
Medical Flight --