Aircraft Accident/Incident Report

Hockley, Texas 77447
Saturday, February 13, 1999 16:45 CST

NTSB Narrative Summary Released at Completion of Accident

The helicopter impacted power lines while departing from an automobile accident scene. The helicopter was part of a two aircraft team dispatched to the scene of the automobile accident. During the landing approach, the pilot noticed the power lines running parallel to the road; however, he did not consider them to be an unusual hazard at the time. After the passengers were loaded into the helicopter, the pilot took off, drifted toward the wires, and impacted the power lines. The pilot then landed the helicopter in an adjacent field. The pilot stated that at the time the helicopter impacted the wires 'the sun was shining directly into the aircraft' and that 'trash was blowing around.' Another helicopter was dispatched to the scene of the accident to transport the patients to the hospital.

NTSB Probable Cause Narrative

The pilot's failure to maintain clearance with the power lines. A factor was the sunglare reducing the pilot's visibility.

Event Information

Type of Event Accident
Event Date 2/13/1999
Event Day of the Week Saturday
Time of Event 1645
Event Time Zone Central Standard Time
Event City HOCKLEY
Event State TEXAS
Event Country --
Zipcode of the event site 77447
Event Date Year 1999
Event Date Month 2
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude --
Event Location Longitude --
Event Location Airport
Event Location Nearest Airport ID
Indicates whether the acc/inc occurred off or on an airport Off Airport/Airstrip
Distance from airport in statute miles --
Degrees magnetic from airport --
Airport Elevation 100
Weather Briefing Completeness Unknown
Investigator's weather source Pilot
Time of the weather observation 0
Direction of event from weather observation facility (degrees) 0
Weather Observation Facility ID
Elevation of weather observation facility 0
Distance of event from weather observation facility (units?) 0
Time Zone of the weather observation
Lighting Conditions Day
Lowest Ceiling Height 0
Lowest Non-Ceiling Height 0
Sky/Lowest/Cloud Conditions Clear
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 10
Air Temperature at event time (in degrees celsius) 16
Dew Point at event time (in degress fahrenheit) -4
Wind Direction (degrees magnetic) 315
Variable Wind Indicator Unknown
Wind Speed (knots) 8
Wind Velocity Indicator Unknown
Wind Gust Indicator Not Gusting
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 30
Density Altitude (feet) --
Intensity of Precipitation Unknown
METAR weather report --
Event Highest Injury None
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal --
Injury Total Minor --
Injury Total None 5
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 60
NTSB Notification Source --
NTSB Notification Date Feb 13 1999 12:00AM
NTSB Notification Time 1950
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Apr 27 2001 4:05AM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N220HH
NTSB Number FTW99LA080
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 135: Air Taxi & Commuter
Type of Flight Plan filed Company VFR
Flight plan Was Activated? --
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name Eurocopter
Aircraft Model BK 117 B-1
Aircraft Series Identifier BK 117 B-1
Aircraft Serial Number 7215
Certified Max Gross Weight 7055
Aircraft Category Helicopter
Aircraft Registration Class U.S. Registered/U.S. Soil
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 Feb 8 1999 12:00AM
Airframe hours since last inspection 18
Airframe Hours 6348
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name MEMORIAL HERMANN HEALTH CARE
Aircraft Owner Street Address 6411 FANNIN STREET
Aircraft Owner City HOUSTON
Aircraft Owner State TX
Aircraft Owner Country
Aircraft Owner Zipcode 77030
Operator is an individual? --
Operator Name HERMANN HOSPITAL LIFE FLIGHT
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address
Operator City
Operator State
Operator Country
Operator Zip code
Operator Code GVNA
Owner has at least one certificate Yes - certificate holder
Other Operator of large aircraft? No
Certified for Part 133 or 137 Operation Unknown
Operator Certificate Number --
Indicates whether an air carrier operation was scheduled or not Non-scheduled
Indicates Domestic or International Flight Domestic
Operator carrying Pax/Cargo/Mail Passenger Only
Type of Flying (Per_Bus / Primary) Unknown
Second Pilot on Board No
Departure Point Same as Event Yes
Departure Airport Code
Departure City
Departure State
Departure Country
Departure Time 0
Departure Time Zone
Destination Same as Local Flt --
Destination Airport Code 20TA
Destination City HOUSTON
Destination State TX
Destination Country
Specific Phase of Flight --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Apr 27 2001 4:05AM
User who most recently changed record dbo
Since inspection or accident --
Event Location Runway Number and Location 0
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight Yes
Medical Flight Medical Emergency