Aircraft Accident/Incident Report

San Antonio, Texas 78000
Tuesady, March 21, 1989 18:29 CST

NTSB Narrative Summary Released at Completion of Accident

AMERICAN AIRLINE FLT 1269 & MEXICANA AIRLINE FLT 731 WERE CRUISING AT FL 290 ON SOUTHERLY HEADINGS. AFTER DEVIATING AROUND WEATHER, FLT 1269 WAS ON A SOUTH-SOUTHEASTERLY HEADING. SUBSEQUENTLY, THE TWO BOEING 727 AIRCRAFT CONVERGED TO ABOUT 1.06 MI FROM EACH OTHER, VIOLATING THE MINIMUM HORIZONTAL SEPARATION REQUIREMENT. THE OPERATIONAL ERROR OCCURRED WHEN THE ARTCC CONTROLLER WAS BUSY WITH HEAVY TRAFFIC.

NTSB Probable Cause Narrative

FAILURE OF THE ARTCC CONTROLLER TO ASSURE THAT THE AIRCRAFT MAINTAINED IFR SEPARATION STANDARDS. THE CONTROLLER'S HEAVY WORKLOAD WAS A RELATED FACTOR.

Event Information

Type of Event Incident
Event Date 3/21/1989
Event Day of the Week Tuesday
Time of Event 1829
Event Time Zone Central Standard Time
Event City SAN ANTONIO
Event State TEXAS
Event Country --
Zipcode of the event site 78000
Event Date Year 1989
Event Date Month 3
MidAir Collision Indicator --
On Ground Collision occurred ? --
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 0
Degrees magnetic from airport 0
Airport Elevation --
Weather Briefing Completeness Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 0
Direction of event from weather observation facility (degrees) 0
Weather Observation Facility ID HOU
Elevation of weather observation facility 0
Distance of event from weather observation facility (units?) 0
Time Zone of the weather observation
Lighting Conditions Night/Dark
Lowest Ceiling Height 0
Lowest Non-Ceiling Height 0
Sky/Lowest/Cloud Conditions Unknown
Sky Condition for Lowest Ceiling Unknown
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 0
Air Temperature at event time (in degrees celsius) --
Dew Point at event time (in degress fahrenheit) --
Wind Direction (degrees magnetic) 0
Variable Wind Indicator Unknown
Wind Speed (knots) 0
Wind Velocity Indicator Unknown
Wind Gust Indicator Unknown
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) --
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 261
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 5017
NTSB Notification Source --
NTSB Notification Date Mar 22 1989 12:00AM
NTSB Notification Time 1030
Fiche Number and/or location -used to find docket information 40442
Date of most recent change to record Apr 9 2001 10:27AM
User who most recently changed record dbo
Basic weather conditions Unknown
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft #2

Aircraft Registration Number N728 XAMXE
NTSB Number DEN89IA089A DEN89IA089B
Missing Aircraft Indicator N N
Federal Aviation Reg. Part Part 121: Air Carrier Part 129: Foreign
Type of Flight Plan filed IFR IFR
Flight plan Was Activated? -- --
Damage None None
Aircraft Fire None None
Aircraft Explosion None None
Aircraft Manufacturer's Full Name BOEING BOEING
Aircraft Model 727-200A 727-200
Aircraft Series Identifier 727-200A 727-200
Aircraft Serial Number
Certified Max Gross Weight 142000 142000
Aircraft Category Airplane Airplane
Aircraft Registration Class U.S. Registered/U.S. Soil Foreign Registered/U.S. Soil
Aircraft is a homebuilt? No No
Flight Crew Seats -- --
Cabin Crew Seats -- --
Passenger Seats -- --
Total number of seats on the aircraft 134 134
Number of Engines 3 3
Fixed gear or retractable gear Retractable Retractable
Aircraft, Type of Last Inspection Continuous Airworthiness Continuous Airworthiness
Date of Last Inspection -- --
Airframe hours since last inspection -- --
Airframe Hours -- --
ELT Installed No No
ELT Activated No No
ELT Aided Location of Event Site No No
ELT Type -- --
Aircraft Owner Name AMERICAN AIRLINES MEXICANA AIRLINES
Aircraft Owner Street Address P.O. BOX 619616 ORIENTE 174 NO 427 COL.
Aircraft Owner City DFW AIRPORT MEXICO CITY
Aircraft Owner State TX MX
Aircraft Owner Country
Aircraft Owner Zipcode 75261 15500
Operator is an individual? -- --
Operator Name AMERICAN AIRLINES MEXICANA AIRLINES
Operator Same as Owner? No No
Operator Is Doing Business As -- --
Operator Address Same as Owner? No No
Operator Street Address DFW INT'L AIRPORT AREOPETO INTERNATIONAL
Operator City DALLAS MEXICO CITY
Operator State TX MX
Operator Country
Operator Zip code 74202
Operator Code AALA MXLA
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 Unknown Unknown
Operator Certificate Number -- --
Indicates whether an air carrier operation was scheduled or not Scheduled Scheduled
Indicates Domestic or International Flight International International
Operator carrying Pax/Cargo/Mail Passenger Only Passenger Only
Type of Flying (Per_Bus / Primary) Unknown Unknown
Second Pilot on Board Yes Yes
Departure Point Same as Event No No
Departure Airport Code DFW DFW
Departure City DALLAS DALLAS
Departure State TX TX
Departure Country
Departure Time 1725 0
Departure Time Zone CST
Destination Same as Local Flt -- --
Destination Airport Code CUN MTY
Destination City CAN CUN MARIANO ESCOBED
Destination State
Destination Country
Specific Phase of Flight Cruise Cruise
Report sent to ICAO? -- --
Evacuation occurred -- --
Date of most recent change to record Jan 2 2001 10:30AM Jan 2 2001 10:30AM
User who most recently changed record dbo dbo
Since inspection or accident -- --
Event Location Runway Number and Location 0 0
Runway Length -- --
Runway Width -- --
Sight Seeing flight No No
Air Medical Flight No No
Medical Flight -- --