Aircraft Accident/Incident Report

Los Angeles, California
Saturday, September 4, 2010 19:50 UTC

NTSB Narrative Summary Released at Completion of Accident

A departing Boeing 737-700 passed within 750 feet laterally and 200 feet vertically of a helicopter operating under visual flight rules. Both aircraft were receiving air traffic control services from the airport's air traffic control tower and were operating in Class B airspace. Postincident investigation determined that the controller handling the helicopter did not exercise positive control of the situation by issuing clear and timely control instructions and that the helicopter pilot did not react quickly to instructions issued by the controller.

NTSB Probable Cause Narrative

Failure of the air traffic controller to exercise positive control of the situation by issuing clear and timely control instructions to the helicopter pilot. Contributing to the incident was delay by the helicopter pilot in responding to instructions issued by the controller.

Event Information

Type of Event Incident
Event Date 9/4/2010
Event Day of the Week Saturday
Time of Event 1950
Event Time Zone Coordinated Universal Time? Same as GMT
Event City Los Angeles
Event State CALIFORNIA
Event Country --
Zipcode of the event site --
Event Date Year 2010
Event Date Month 9
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 --
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 1953 Pacific Daylight Time
Direction of event from weather observation facility (degrees) 0
Weather Observation Facility ID klax
Elevation of weather observation facility 10
Distance of event from weather observation facility (units?) 0
Time Zone of the weather observation PDT
Lighting Conditions Day
Lowest Ceiling Height --
Lowest Non-Ceiling Height 200
Sky/Lowest/Cloud Conditions Few
Sky Condition for Lowest Ceiling --
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) 7
Air Temperature at event time (in degrees celsius) 21
Dew Point at event time (in degress fahrenheit) 13
Wind Direction (degrees magnetic) 270
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 9
Wind Velocity Indicator --
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 29.88
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 133
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 29193
NTSB Notification Source FAA
NTSB Notification Date --
NTSB Notification Time --
Fiche Number and/or location -used to find docket information --
Date of most recent change to record Dec 8 2011 10:35AM
User who most recently changed record broda
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft #2

Aircraft Registration Number -- --
NTSB Number OPS10IA538A OPS10IA538B
Missing Aircraft Indicator -- --
Federal Aviation Reg. Part -- --
Type of Flight Plan filed IFR None
Flight plan Was Activated? Yes --
Damage None None
Aircraft Fire None None
Aircraft Explosion None None
Aircraft Manufacturer's Full Name BOEING BELL
Aircraft Model 737-7H4 222U
Aircraft Series Identifier -- --
Aircraft Serial Number 36619 47547
Certified Max Gross Weight -- --
Aircraft Category Airplane Helicopter
Aircraft Registration Class -- --
Aircraft is a homebuilt? No No
Flight Crew Seats 2 --
Cabin Crew Seats -- --
Passenger Seats -- --
Total number of seats on the aircraft 140 10
Number of Engines 2 2
Fixed gear or retractable gear Fixed Fixed
Aircraft, Type of Last Inspection -- --
Date of Last Inspection -- --
Airframe hours since last inspection -- --
Airframe Hours -- --
ELT Installed Unknown Unknown
ELT Activated Unknown Unknown
ELT Aided Location of Event Site Unknown Unknown
ELT Type -- --
Aircraft Owner Name -- --
Aircraft Owner Street Address PO BOX 36611 299 S MAIN ST MAC U1228-120
Aircraft Owner City DALLAS SALT LAKE CITY
Aircraft Owner State TX UT
Aircraft Owner Country USA USA
Aircraft Owner Zipcode 75235-1611 84111
Operator is an individual? No No
Operator Name -- --
Operator Same as Owner? No No
Operator Is Doing Business As -- --
Operator Address Same as Owner? No Yes
Operator Street Address -- 7301 South Peoria
Operator City -- Englewood
Operator State -- CO
Operator Country USA USA
Operator Zip code -- 80112
Operator Code SWAA QMLA
Owner has at least one certificate Yes - certificate holder Yes - certificate holder
Other Operator of large aircraft? No No
Certified for Part 133 or 137 Operation -- --
Operator Certificate Number SWAA304A QMLA253U
Indicates whether an air carrier operation was scheduled or not Scheduled --
Indicates Domestic or International Flight Domestic --
Operator carrying Pax/Cargo/Mail Passenger Only --
Type of Flying (Per_Bus / Primary) -- Positioning
Second Pilot on Board Yes No
Departure Point Same as Event Yes No
Departure Airport Code -- --
Departure City Los Angeles Westwood
Departure State CA CA
Departure Country USA USA
Departure Time 1250 1246
Departure Time Zone PDT PDT
Destination Same as Local Flt -- --
Destination Airport Code LAS CRQ
Destination City Las vegas Palomar
Destination State NV CA
Destination Country USA USA
Specific Phase of Flight -- --
Report sent to ICAO? -- --
Evacuation occurred -- --
Date of most recent change to record Nov 8 2011 3:07PM Nov 8 2011 3:08PM
User who most recently changed record duns duns
Since inspection or accident -- --
Event Location Runway Number and Location -- --
Runway Length -- --
Runway Width -- --
Sight Seeing flight No No
Air Medical Flight No Yes
Medical Flight -- --