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Safety Recommendation Details

Safety Recommendation A-80-118
Details
Synopsis: ON JUNE 12, 1980, AN AIR WISCONSIN SWEARINGEN SW-4 CRASHED DURING AN ENCOUNTER WITH A LEVEL 5 OR GREATER THUNDERSTORM IN EASTERN NEBRASKA. THIRTEEN PERSONS WERE KILLED AND TWO PERSONS WERE SERIOUSLY INJURED. TESTIMONY GIVEN AT A PUBLIC HEARING HELD IN OMAHA, NEBRASKA, DURING SEPTEMBER 1980 INDICATED THAT THE FULL EXTENT OF THE AREA OF PRECIPITATION AND ACCURATE INTENSITY CHARACTERISTICS OF CONVECTIVE METEOROLOGICAL PHENOMENA ARE NOT PORTRAYED ON A CONTROLLER'S PLAN VIEW DISPLAY (PVD) BECAUSE THE WEATHER FIXED MAP UNIT (WFMU) IS DESIGNED TO BE SELECTIVE IN ITS DISPLAY OF PRECIPITATION AND IS LIMITED IN ITS CAPABILITY TO DISPLAY WEATHER ECHO INTENSITY LEVELS. WE BELIEVE THAT INSTALLATION OF THESE DISPLAYS IN ALL ARTCCS HAVING CWSUS SHOULD BE EXPEDITED TO PROVIDE REAL-TIME DEPICTION OF THE LOCATION AND INTENSITY OF ALL CONVECTIVE METEOROLOGICAL PHENOMENA AFFECTING A CENTER'S AIRSPACE.
Recommendation: THE NTSB RECOMMENDS THAT THE FEDERAL AVIATION ADMINISTRATION: EXPEDITE THE DEVELOPMENT OF AN INTEGRATED WEATHER RADAR/AIR TRAFFIC CONTROL RADAR SINGLE VIDEO DISPLAY SYSTEM CAPABLE OF PROVIDING MULTIPLE WEATHER ECHO INTENSITY DISCRIMINATION WITHOUT DEROGATION OF AIR TRAFFIC CONTROL RADAR INTELLIGENCE.
Original recommendation transmittal letter: PDF
Overall Status: Closed - Acceptable Action
Mode: Aviation
Location: Valley, NE, United States
Is Reiterated: No
Is Hazmat: No
Is NPRM: No
Accident #: DCA80AA019
Accident Reports: Air Wisconsin, Inc., Swearingen A-226 Metro, N650S
Report #: AAR-80-15
Accident Date: 6/12/1980
Issue Date: 11/19/1980
Date Closed: 1/28/1994
Addressee(s) and Addressee Status: FAA (Closed - Acceptable Action)
Keyword(s): Air Traffic Control, Weather, Weather Equipment/Products/Reports

Safety Recommendation History
From: NTSB
To: FAA
Date: 1/28/1994
Response: THE BOARD NOTES THAT THE FAA HAS ESTABLISHED PROJECT NO. 63-21 TO ADDRESS THE INTEGRATION OF PRESENT AND FUTURE TERMINAL WEATHER SYSTEMS. THIS PROJECT WILL INTEGRATE ALL OF THE FAA'S AUTOMATED TERMINAL WEATHER PRODUCTS FOR DISPLAY TO CONTROLLERS AND TRAFFIC MANAGEMENT SPECIALISTS AT THE LARGEST AIRPORT TRAFFIC CONTROL TOWERS THAT HAVE NUMEROUS SOURCES OF WEATHER DATA, SUCH AS TERMINAL DOPPLER WEATHER RADAR (TDWR), THE LOW LEVEL WINDSHEAR ALERT SYSTEM (LLWAS), AND AIRPORT SURVEILLANCE RADAR (ASR-9). THE BOARD FURTHER NOTES THAT THE FAA PLANS TO INCREASE THE NUMBER OF AIRPORTS COVERED BY THE LLWAS, TDWR, AND ASR-9 SYSTEMS. THE GOAL IS TO CORRELATE HAZARDOUS WEATHER COVERAGE TO AIRCRAFT SURVEILLANCE COVERAGE. AT A LATER DATE, THE FAA PLANS TO INTEGRATE THE AUTOMATED WEATHER OBSERVING SYSTEM, AUTOMATED SURFACE OBSERVING SYSTEM, AND LIGHTNING DETECTION SYSTEM, AND PROVIDE THE CAPABILITY OF DATA LINKING THIS WEATHER INFORMATION DIRECTLY TO THE COCKPIT. THE BOARD NOTES THAT ON AUGUST 8, 1992, THE FAA'S FIRST OPERATIONAL TDWR SYSEMS WERE INSTALLED AT HOUSTON, TEXAS, AND MEMPHIS, TENNESSEE, FOR OPERATIONAL TESTING AND EVALUATION. ADDITIONALLY, ORLANDO, FLORIDA, RECEIVED THE FIRST PRODUCTION MODEL OF THE ENHANCED LLWAS AND IS CURRENTLY UNDERGOING OPERATIONAL TESTING WITH INITIAL DEPLOYMENT OF THE SYSTEM PLANNED FOR NINE MAJOR AIRPORTS. FURTHERMORE, THE DELIVERY OF METEOROLOGICAL WEATHER PROCESSORS TO THE CENTER WEATHER SERVICE UNITS HAS BEEN COMPLETED, AND THE DELIVERY OF THE NEXT GENERATION RADAR (NEXRAD) IS ONGOING, WITH 21 UNITS HAVING BEEN DELIVERED TO DATE. THE BOARD BELIEVES THAT THE FAA HAS ADDRESSED THE INTENT OF RECOMMENDATION A-80-118 AND CLASSIFIES IT "CLOSED--ACCEPTABLE ACTION."

From: FAA
To: NTSB
Date: 7/2/1993
Response: THE FAA HAS ESTABLISHED A PROJECT TO ADDRESS THE INTEGRATION OF PRESENT AND FUTURE TERMINAL WEATHER SYSTEMS. THE PURPOSE OF THIS PROJECT IS TO INTEGRATE ALL OF THE FAA'S AUTOMATED TERMINAL WEATHER PRODUCTS FOR DISPLAY TO CONTROLLERS AND TRAFFIC MANAGEMENT SPECIALISTS AT THE LARGEST AIRPORT TRAFFIC CONTROL TOWERS THAT HAVE NUMEROUS SOURCES OF WEATHER DATA SUCH AS TERMINAL DOPPLER WEATHER RADAR, LOW LEVEL WINDSHEAR ALERT SYSTEM AND AIRPORT SURVEILLANCE RADAR AS A PART OF THIS PROJECT, THE FAA PLANS TO INCREASE THE NUMBER OF AIRPORTS COVERED TO INCREASE THE NUMBER OF AIRPORTS COVERED BY LLWAS, TDWR, AND ASR-9 RADAR SYSTEMS. THE GOAL IS TO CORRELATE HAZARDOUS WEATHER COVERAGE TO AIRCRAFT SURVEILLANCE COVERAGE. THE AUTOMATED WEATHER OBSERVING SYSTEM, AUTOMATED SURFACE OBSERVING SYSTEM, AND LIGHTING DETECTION SYSTEM WILL BE INCLUDED AT A LATER DATE. FUTURE PLANS CALL FOR PROVIDING THE CAPABILITY OF DATA LINKING THIS WEATHER INFORMATION DIRECTLY TO THE COCKPIT. THE FIRST STEP IN THE INTEGRATION OF WEATHER PRODUCTS FOR THE TERMINAL AREAS WILL BE THE INTEGRATION OF TDWR AND THE ENCHANCED LLWAS.

From: NTSB
To: FAA
Date: 8/31/1992
Response: THE BOARD NOTES THAT THE FAA HAS ESTABLISHED PROJECT NO. 62-21 TO ADDRESS THE INTEGRATION OF PRESENT & FUTURE TERMINAL WEATHER SYSTEMS & DETERMINED THAT THE FIRST STEP IN THE INTEGRATION OF WEATHER PRODUCTS FOR THE TERMINAL AREAS WILL BE THE INTEGRATION OF MICROBURST DETECTION SENSORS (TDWR) & THE ENHANCED LOW LEVEL WINDSHEAR ALERT SYSTEMS (LLWAS). FURTHERMORE, THE METEOROLOGICAL WEATHER PROCESSOR IS NOW BEING DELIVERED TO THE CENTER WEATHER SERVICE UNITS, & THE DELIVERY OF THE NEXT GENERATION RADAR TO EN ROUTE FACILITIES IS ANTICIPATED TO BE IN THE 1993-1994 TIME FRAME. PENDING FURTHER INFORMATION CONCERNING THE COMPLETION OF PROJECT NO. 62-21, RECOMMENDATION A-80-118 REMAINS CLASSIFIED AS "OPEN--ACCEPTABLE RESPONSE."

From: FAA
To: NTSB
Date: 5/26/1992
Response: THE FAA HAS ESTABLISHED A PROJECT TO ADDRESS THE INTEGRATION OF PRESENT AND FUTURE TERMINAL WEATHER SYSTEMS. THIS PROJECT IS PART OF THE CAPITAL INVESTMENT PLAN AND HAS BEEN ASSIGNED PROJECT NO. 62-21, INTEGRATED TERMINAL WEATHER SYSTEMS. THE PURPOSE OF THIS PROJECT IS TO INTEGRATE ALL OF THE AUTOMATED TERMINAL WEATHER PRODUCTS FOR DISPLAY TO CONTROLLER AND TRAFFIC MANAGEMENT SPECIALISTS AT AIRPORT CONTROL TOWERS. AS A PART OF THIS PROJECT, THE FAA PLANS TO INCREASE THE NUMBER OF AIRPORTS COVERED BY LOW LEVEL WINDSHEAR ALERT SYSTEMS (LLWAS), MICROBURST DETECTION SENSORS (TDWR), AND TERMINAL DISPLAYS. THE GOAL IS TO CORRELATE HAZARDOUS WEATHER COVERAGE TO AIRCRAFT SURVEILLANCE RADAR COVERAGE. THE AUTOMATED WEATHER OBSERVING SYSTEM/AUTOMATED SURFACE OBSERVING SYSTEM AND LIGHTNING DETECTION WILL ALSO BE INCLUDED AT A LATER DATE. FUTURE PLANS CALL FOR PROVIDING THE CAPABILITY OF DATA LINKING THIS WEATHER INFORMATION DIRECTLY TO THE COCKPIT. THE FIRST STEP IN THE INTEGRATION OF WEATHER PRODUCTS FOR THE TERMINAL AREAS WILL BE THE INTEGRATION OF TDWR AND THE ENHANCED LLWAS SYSTEMS. THE FIRST OPERATIONAL TDWR AND THE ENHANCED LLWAS SYSTEMS. THE FIRST OPERATIONAL TDWR SYSTEMS WILL BE FIELDED IN 1993. THE ENHANCED LLWAS WILL BE INITIALLY DEPLOYED TO NINE MAJOR AIRPORTS. IT IS ANTICIPATED THAT 83 AIRPORTS WILL ULTIMATELY HAVE THE ENHANCED LLWAS. THE DELIVERY OF THE METEOROLOGICAL WEATHER PROCESSOR TO THE CENTER WEATHER SERVICE UNITS IS NOW TAKING PLACE. THE DELIVERY OF THE NEXT GENERATION RADAR TO EN ROUTE FACILITIES HAS BEEN DELAYED DUE TO CONTRACTOR DIFFICULTIES. IT IS NOW ANTICIPATED THAT DELIVERY OF THESE SYSTEMS WILL TAKE PLACE IN THE 1993-1994 TIMEFRAME.

From: NTSB
To: FAA
Date: 6/18/1990
Response: (per greensheet a-90-83 thru -85). The intent of this recommendation was to provide controllers with sufficient information on their video display to keep aircraft out of severe convective weather both en route and in the terminal area. The asr-9 has the capability of providing this level of information in the terminal area. The safety board understands, however, that demonstration tests of systems to provide Data Source: NTSB Recommendations to FAA and FAA Responses weather information on air route traffic control center displays have met with limited succes and that the faa has no current plans for achieving this objective until the implementation of the advanced automation system in the late 1990's. (recommendation a-80-118, issued november 18, 1980, is classified as "open-- acceptable action.")

From: NTSB
To: FAA
Date: 5/15/1987
Response: The safety board recognizes that the faa has ongoing programs that, when completed, should satisfy the intent of these recommendations. However, the completion of these programs and the determination of their effectiveness are still many years away. Safety boards staff became aware of the experimental program being conducted as the faa's kansas city artcc.This program involved the presentation of faa or new weather radar information on the atc planned view display (pvd). On june 5, 1986, safety board investigators received a briefing, of this new radar capability. - safety board investigators were advised that, if this experimental program is adopted and implemented on a national basis, the broad band radar would be terminated. -unfortunately, a planned field evaluation of this system was not conducted, and to the best of our knowledge no further efforts to test or adopt the system under consideration by the faa. -safety board believes a system similar to that which was operated at the kansas city artcc should be given full consideration by the faa. -the safety board will follow the progress of nexrad and asr-9. These sys-tems coupled with a single video display system should satisfy the ****.

From: FAA
To: NTSB
Date: 1/30/1987
Response: AS STATED IN MY RECENT LETTER TO THE BOARD, THE INTEGRATED WEATHER RADAR/AIR TRAFFIC CONTROL RADAR SINGLE VIDEO DISPLAY WILL BE ATTAINED WHEN THE 9020 HOST COMPUTER REPLACEMENT, DOPPLER WEATHER RADAR, AND CENTRAL WEATHER PROCESSOR ARE IN PLACE. I ANTICIPATE THAT THE ADVANCED AUTOMATION SYSTEM SECTOR SUITE AND THE 9020 HOST COMPUTER REPLACEMENT PROGRAM WILL BE COMPLETED BY THE MID-1990'S.

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. -the open safety recommendations reviewed by the safety board are as follows: a-74-13, 1-76-34, 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: FAA
To: NTSB
Date: 5/5/1986
Response: The recommended weather products and enhancements will be available when the advanced automation system sector suite is implemented. With regard to recommendation a-80-118, the faa's intent has always been to have the air traffic and weather data integrated on a single display. The use of separate displays is considered an interim measure to overcome existing equipment limitations. The integrated weather radar/air traffic control radar single video display will be attained with the introduction of the 9020 host computer replacement, and will include doppler weather radar and a central weather processor. I anticipate that the advanced automation system sector suite and the 9020 host computer replacement program will be completed by mid-1990. As noted in previous responses, thefaa concurs with the intent of these recommendations and is steadily working toward completion of this project. The faa has incorporated the various systems and subsystems referenced in these recommendations into programs which will be introduced into faa facilities. I request that based on the faa's ongoing efforts and the timeframe associated with the completion of this project, these recommendations be classified as closed-acceptable action. I consider the faa's action to be completed ....

From: NTSB
To: FAA
Date: 11/3/1983
Response: The safety board believes that the development and implementation of an integrated weather radar/air traffic control radar will greatly enhance the dissemination to pilots of real time information on hazardous convective activity. This real time information will help pilots avoid areas of jazardpis weather and reduce the number of accidents and incidents that occur in and near convective activity. We are pleased that the development of an integrated display is currently in progress and has been given a high priority. We urge the faa to continue these efforts and request that the board be kept advised of progress in this area. Based on your response, safety recommendation a-80-118 will be maintained in an open--acceptable action status.

From: FAA
To: NTSB
Date: 7/15/1983
Response: FAA LETTER: AS NOTED IN OUR RESPONSE DATED FEBRUARY 17, 1981, THE FEDERAL AVIATION ADMINISTRATION (FAA) CONCURRED WITH THE INTENT OF THIS RECOMMENDATION, AND THE AGENCY'S REQUIREMENT HAS ALWAYS BEEN FOR AIR TRAFFIC AND WEATHER DATA TO BE INTEGRATED ON A SINGLE DISPLAY. THIS EFFORT IS CURRENTLY IN PROGRESS AND HAS BEEN GIVEN A HIGH PRIORITY. THE PROJECTED DATE FOR SUCH A DISPLAY IS 1988.

From: NTSB
To: FAA
Date: 4/10/1981
Response: The safety board is pleased to note that the faa essentially agrees with these recommendations and that actions are in progress toward their fulfillment. Safety recommendations a-80-115 thru 119 are classified in an open--acceptable action status.

From: FAA
To: NTSB
Date: 2/17/1981
Response: FEDERAL AVIATION ADMINISTRATION LTR: THE FAA CONCURS IN THE INTENT OF THIS RECOMMENDATION AND, IN FACT, THE AGENCY REQUIREMENT HAS ALWAYS BEEN FOR AIR TRAFFIC AND WEATHER DATA TO BE INTEGRATED ON A SINGLE DISPLAY. THE USE OF SEPARATE DISPLAYS IS CONSIDERED AN INTERIM MEASURE TO OVERCOME EXISTING EQUIPMENT LIMITATIONS. IT IS ANTICIPATED THAT AN INTEGRATED WEATHER RADAR/AIR TRAFFIC CONTROL RADAR SINGLE VIDEO DISPLAY WILL BE ATTAINED WITH THE INTRODUCTION OF THE 9020 REPLACEMENT AND DOPPLER WEATHER RADAR. THIS EFFORT IS CURRENTLY IN PROGRESS. WE PLACE A HIGH PRIORITY ON COMPLETION OF THIS PROGRAM.