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Safety Recommendation Details

Safety Recommendation A-83-025
Details
Synopsis: ON JULY 9, 1982, PAN AMERICAN WORLD AIRWAYS FLIGHT 759 CRASHED AFTER TAKING OFF FROM RUNWAY 10 AT NEW ORLEANS INTERNATIONAL AIRPORT, KENNER, LOUISIANA. WHEN FLIGHT 759 TOOK OFF, THERE WERE ISOLATED HEAVY SHOWERS OVER THE AIRPORT AND TO THE EAST OF THE AIRPORT ALONG THE AIRPLANE'S INTENDED DEPARTURE PATH. LOW LEVEL WIND SHEAR CONDITIONS HAD BEEN DETECTED BY THE AIRPORT'S LOW LEVEL WIND SHEAR ALERT SYSTEM (LLWSAS), AND THE SYSTEM HAD ALARMED SEVERAL TIMES, THE LAST TIME ABOUT 4 MINUTES BEFORE FLIGHT 759'S TAKEOFF. THE SYSTEM WAS NOT ALARMING AT THE TIME THE TAKEOFF CLEARANCE WAS ISSUED; HOWEVER, A WIND SHEAR ADVISORY WAS BROADCAST 2 SECONDS AFTER THE ACCIDENT.
Recommendation: THE NTSB RECOMMENDS THAT THE FEDERAL AVIATION ADMINISTRATION: RECOMMEND TO AIR CARRIERS THAT THEY MODIFY PILOT TRAINING ON SIMULATORS CAPABLE OF REPRODUCING WIND SHEAR MODELS SO AS TO INCLUDE MICROBURST PENETRATION DEMONSTRATIONS DURING TAKEOFF, APPROACH, AND OTHER CRITICAL PHASES OF FLIGHT.
Original recommendation transmittal letter: PDF
Overall Status: Closed - Acceptable Action
Mode: Aviation
Location: Kenner, LA, United States
Is Reiterated: No
Is Hazmat: No
Is NPRM: No
Accident #: DCA82AA028
Accident Reports: Pan American World Airways, Inc., Clipper 759, Boeing 727-235, N4737
Report #: AAR-83-02
Accident Date: 7/9/1982
Issue Date: 3/25/1983
Date Closed: 6/18/1990
Addressee(s) and Addressee Status: FAA (Closed - Acceptable Action)
Keyword(s): Flightcrew, Low Level Windshear, Simulator, Training and Education, Weather, Wind

Safety Recommendation History
From: NTSB
To: FAA
Date: 6/18/1990
Response: (PER GREEN SHEET A-90-83 THRU -85) A combination of actions and programs are responsive to these recommendations: the distribution of the Windshear Training Aid, rulemaking to mandate air carrier windshear training programs, required installation of windshear passive warning or active detection devices, and the NASA program to develop look-ahead technology for airborne windshear detection. (Recommendations A-83-22 and -25, issued March 25, 1983; and A-85-26, issued April 15, 1985, are reclassified as "Closed--Acceptable Action.")

From: FAA
To: NTSB
Date: 9/16/1986
Response:

From: NTSB
To: FAA
Date: 9/16/1986
Response: In the course of the Safety Board's investigation of an accident involving Delta Air Lines flight 191 at Dallas/Fort Worth International Airport, Texas, on August 2, 1985, the Safety Board has performed a detailed review of all Safety Recommendations, currently classified as open, issued to the FAA on the subject of windshear. Also addressed in this review were three Safety Recommendations that discussed the timely detection of severe weather, though not specifically related to windshear or microbursts. The Safety Board's review included past FAA responses, evaluation of the FAA's letters of September 24, 1985, and May 5, 1986, and our analysis of the FAA's Integrated Wind Shear Program Plan. A more descriptive review of the FAA's responses to these Safety Recommendations and of the program plan is contained in appendix H of the Safety Board's report of the Delta flight 191 accident. The open Safety Recommendations reviewed by the Safety Board are as follows: A-74-13 A-76-34 A-77-63 A-80-118 A-83-15 A-83-18 A-83-19 A-83-20 A-83-21 A-83-22 A-83-23 A-83-24 A-83-25 A-85-26 A-85-27 The Safety Board has carefully reviewed the Integrated Wind Shear Program Plan and the two letters from the FAA mentioned above and finds that the actions concurrently being taken and planned by the FAA will comply with the intent of all of the above Safety Recommendations when implemented. Therefore, all of the above-listed Safety Recommendations have been classified as "Open--Acceptable Action" pending completion of the FAA's planned actions. The Safety Board appreciates the FAA's actions to improve windshear detection and avoidance, and in the dissemination of information on windshear.

From: NTSB
To: FAA
Date: 10/1/1985
Response: We are pleased that the FAA recognizes that response to wind shear is a suitable topic for pilot training in simulators and that it is working closely with the National Council for Atmospheric Research, the Air Transportation Association Wind Shear Task Force, aircraft manufacturers, and several air carriers to develop the most beneficial wind shear simulator training. Safety Recommendation A-83-25 is classified "Open--Acceptable Action" pending the FAA's further response.

From: FAA
To: NTSB
Date: 4/2/1985
Response: FAA LTR: THE FAA IS WORKING VERY CLOSELY WITH THE NATIONAL CENTER FOR ATMOSPHERIC RESEARCH, THE AIR TRANSPORTATION ASSOCIATION WIND SHEAR TASK FORCE, AIRCRAFT MANUFACTURERS, AND SEVERAL AIR CARRIERS FOR THE PURPOSE OF DEVELOPING THE MOST BENEFICIAL TRAINING WIND SHEAR SIMULATOR MODELS. THESE MODELS WILL MOST LIKELY BE DERIVED FROM DATA OBTAINED IN THE JOINT AIRPORT WEATHER STUDIES PROJECT. HOWEVER, IT MUST BE KEPT IN MIND THAT SIMULATOR TRAINING IS NOT A REQUIREMENT FOR AIR CARRIERS, AND, THEREFORE, WIND SHEAR TRAINING IN SIMULATORS CANNOT BE MANDATED AT THE PRESENT TIME.

From: NTSB
To: FAA
Date: 5/29/1984
Response: The Safety Board notes that definitive data on microbursts, which could be programmed into air carrier flight simulators, are being developed by the National Center for Atmospheric Research. In addition, the Safety Board acknowledges the current interest of air carriers in microburst data for their simulators and the encouragement of the air carriers by the FAA to introduce improved wind shear models in their simulators. Based on this effort by FAA and the industry, we have classified A-83-25 as "Open--Acceptable Action," pending full development and use of the wind shear microburst models in training simulators.

From: FAA
To: NTSB
Date: 7/21/1983
Response: FAA LETTER: THIS SAFETY RECOMMENDATION SPECIFICALLY REQUESTS THAT THE WIND SHEAR DEMONSTRATION INCLUDE A MICRO BURST PENETRATION. THE DEFINITIVE DATA ON MICROBURSTS ARE BEING PREPARED BY THE NATIONAL CENTER FOR ATMOSPHERIC RESEARCH. THE AIR CARRIERS ARE ALREADY INTERESTED IN INFORMATION ON THE DATA ABOUT MICROBURSTS AND HOW IT MIGHT BE IMPLEMENTED INTO THEIR SIMULATOR PROGRAMS. THIS INFORMATION WILL BE PROVIDED AS IT BECOMES AVAILABLE. IN VIEW OF THE ACTIVITY AND INTEREST IN THE AREA OF WIND SHEAR PRIOR TO THE ISSUANCE OF THIS RECOMMENDATION, THE FAA SUBMITS THAT THE INTENT OF THIS RECOMMENDATION HAS ALREADY BEEN ACCOMPLISHED. THE FAA WILL CONTINUE TO ENCOURAGE THE AIR CARRIERS TO IMPLEMENT IMPROVED WINDSHEAR MODELS FOR THEIR SIMULATORS WHICH MAY INCLUDE MICROBURST DEMONSTRATIONS. BEYOND THIS EFFORT, NO OTHER ACTIVITY IS PLANNED ON THIS RECOMMENDATION.