Ted Stevens International Airp Airport
Aircraft Accident/Incident Report

Anchorage, Alaska
Friday, May 21, 2010 AKD

NTSB Narrative Summary Released at Completion of Accident

The airport was configured to use runways 14 and runway 25R, which intersect. An Airbus A319 had been cleared for a visual approach to land on runway 14 but executed a missed approach. During the missed approach procedure and follow-on instructions by air traffic control, the flight paths of the A319 and a Boeing 747, departing from runway 25R, converged. The crew of the A319 received a traffic collision avoidance system resolution advisory during the incident. According to radar data, the A319 and the 747 came with 100 feet vertically and .33 miles laterally. Postincident investigation determined that the approach controller did not direct a timely transfer of communications on the A319 to the control tower and did not account for the aircraft's speed when he directed the A319 to turn north. The above average approach speed of the A319 resulted in the airplane overflying runway 25R instead of turning inside the runway. Additionally, the crew of the 747 transferred radio communications to departure control prior to being directed to do so by the control tower, resulting in the 747 not receiving time-critical traffic and control information from the tower controller.

NTSB Probable Cause Narrative

The approach controller's delayed transfer of communications on the A319 to the tower controller and failure to account for the aircraft's speed when he directed the crew to turn north. Contributing to the incident was the 747 crew's transfer of radio communications to departure control prior to being directed to do so by the tower controller.

Event Information

Type of Event Incident
Event Date 5/21/2010
Event Day of the Week Friday
Time of Event 10
Event Time Zone --
Event City Anchorage
Event State ALASKA
Event Country --
Zipcode of the event site --
Event Date Year 2010
Event Date Month 5
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude --
Event Location Longitude --
Event Location Airport Ted Stevens International Airp
Event Location Nearest Airport ID PANC
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 152
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 PANC
Elevation of weather observation facility --
Distance of event from weather observation facility (units?) --
Time Zone of the weather observation --
Lighting Conditions Night
Lowest Ceiling Height --
Lowest Non-Ceiling Height 2500
Sky/Lowest/Cloud Conditions Few
Sky Condition for Lowest Ceiling --
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) 10
Air Temperature at event time (in degrees celsius) 14
Dew Point at event time (in degress fahrenheit) 2
Wind Direction (degrees magnetic) 290
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 6
Wind Velocity Indicator --
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 29.79
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 140
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 28805
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 Sep 16 2011 12:44PM
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 OPS10IA196A OPS10IA196B
Missing Aircraft Indicator -- --
Federal Aviation Reg. Part -- --
Type of Flight Plan filed IFR Unknown
Flight plan Was Activated? Yes Yes
Damage None None
Aircraft Fire None None
Aircraft Explosion None None
Aircraft Manufacturer's Full Name AIRBUS INDUSTRIE BOEING
Aircraft Model A319-132 747
Aircraft Series Identifier -- 400
Aircraft Serial Number 1116 --
Certified Max Gross Weight -- --
Aircraft Category Airplane Airplane
Aircraft Registration Class -- --
Aircraft is a homebuilt? No No
Flight Crew Seats -- --
Cabin Crew Seats -- --
Passenger Seats -- --
Total number of seats on the aircraft 179 --
Number of Engines 2 4
Fixed gear or retractable gear Retractable Retractable
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 Unknown Unknown
Aircraft Owner Name -- --
Aircraft Owner Street Address CORPORATE TRUST SERVICES L-2990 Luxembourg
Aircraft Owner City BOSTON Luxembourg
Aircraft Owner State MA --
Aircraft Owner Country USA LU
Aircraft Owner Zipcode 02110 --
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 No
Operator Street Address -- --
Operator City -- --
Operator State -- --
Operator Country USA USA
Operator Zip code -- --
Operator Code USAA --
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 USAA105A --
Indicates whether an air carrier operation was scheduled or not Scheduled Scheduled
Indicates Domestic or International Flight Domestic International
Operator carrying Pax/Cargo/Mail Passenger Only Cargo
Type of Flying (Per_Bus / Primary) -- --
Second Pilot on Board Yes Yes
Departure Point Same as Event No Yes
Departure Airport Code PHX PANC
Departure City Pheonix Sky Har Anchorage
Departure State AZ AK
Departure Country USA USA
Departure Time 2001 810
Departure Time Zone MST UTC
Destination Same as Local Flt crash at destination city --
Destination Airport Code PANC ORD
Destination City Anchorage Chicago O'Hare
Destination State AK IL
Destination Country USA USA
Specific Phase of Flight -- --
Report sent to ICAO? -- --
Evacuation occurred -- --
Date of most recent change to record Aug 24 2011 1:07PM Aug 24 2011 1:08PM
User who most recently changed record misp misp
Since inspection or accident -- --
Event Location Runway Number and Location 14 25R
Runway Length 11584 10600
Runway Width 150 150
Sight Seeing flight No No
Air Medical Flight No No
Medical Flight -- --