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Safety Recommendation Details

Safety Recommendation A-76-032
Details
Synopsis: ON JUNE 24, 1975, EASTERN AIR LINES FLIGHT 66, A BOEING 727, CRASHED DURING A PRECISION INSTRUMENT APPROACH TO THE JOHN F. KENNEDY INTERNATIONAL AIRPORT, JAMAICA, NEW YORK. ONE HUNDRED AND THIRTEEN PERSONS DIED FROM THE INJURIES THAT THEY RECEIVED. THE NATIONAL TRANSPORTATION SAFETY BOARD'S INVESTIGATION OF THE ACCIDENT DISCLOSED THAT THE AIRCRAFT DEVELOPED A HIGH DESCENT RATE AS IT PASSED THROUGH OR BELOW THE BASE OF A MATURE THUNDERSTORM. THE STORM WAS ASTRIDE THE APPROACH COURSE AND APPROXIMATELY 1 MILE FROM THE END OF THE RUNWAY. THE PILOTS OF OTHER FLIGHTS WHICH PRECEDED FLIGHT66 ON THE APPROACH REPORTED THAT THEY TOO HAD ENCOUNTERED PROBLEMS IN CONTROLLING THEIR AIRCRAFT TO MAINTAIN A SAFE APPROACH PROFILE. THESE AIRCRAFT AVOIDED AN ACCIDENT POSSIBLY BECAUSE THE PREVAILING CONDITIONS WERE LESS SEVERE OR BECAUSE THE PILOTS RECOGNIZED AND RESPONDED TO THE SITUATION FASTER THAN THE PILOTS OF FLIGHT 66.
Recommendation: EXPEDITE THE PROGRAM TO DEVELOP AND INSTALL EQUIPMENT WHICH WOULD FACILITATE THE DETECTION AND CLASSIFICATION, BY SEVERITY, OF THUNDERSTORMS WITHIN 5 NMI OF THE DEPARTURE OR THRESHOLD ENDS OF ACTIVE RUNWAYS AT AIRPORTS HAVING PRECISION INSTRUMENT APPROACHES.
Original recommendation transmittal letter: PDF
Overall Status: Closed - Acceptable Action
Mode: Aviation
Location: Jamaica, NY, United States
Is Reiterated: No
Is Hazmat: No
Is NPRM: No
Accident #: DCA75AZ015
Accident Reports: Eastern Airlines, Inc., Boeing 727-225
Report #: AAR-76-08
Accident Date: 6/24/1975
Issue Date: 3/9/1976
Date Closed: 8/21/1981
Addressee(s) and Addressee Status: FAA (Closed - Acceptable Action)
Keyword(s): Weather, Thunderstorms/Rain/Snow

Safety Recommendation History
From: NTSB
To: FAA
Date: 8/21/1981
Response: We are informed the faa has developed and installed a low-level wind shear alert system (llwsas) at 24 airports and that 34 more airports are to be equipped by 1981. We have taken note of the progress of this program and of the faa's continuing research and development efforts. This recommendation is classified in a closed--acceptable action status.

From: FAA
To: NTSB
Date: 5/1/1981
Response: FEDERAL AVIATION ADMINISTRATION LTR: THE FAA HAS DEVELOPED AND IS IMPLEMENTING A LOW-LEVEL WIND SHEAR ALERT SYSTEM (LLWSAS) DESIGNED TO DETECT THE HORIZONTAL WIND SHEAR CAUSED BY THUNDERSTORM GUST FRONTS AND STRONG COLD FRONTS IN THE VICINITY OF AN AIRPORT. THE LLWSAS HAS BEEN IMPLEMENTED AND IS WORKING WELL AT 24 U.S. AIRPORTS; INSTALLATION HAS BEEN CONTRACTED FOR 34 MORE AIRPORTS IN 1980 AND 1981.

From: NTSB
To: FAA
Date: 4/17/1981
Response: We were advised on july 28, 1980, to expect an answer in the near future. We are anxious to evaluate the progress of these recommenda- tions and would very much appreciate an updated status report.

From: FAA
To: NTSB
Date: 7/28/1980
Response: FAA LTR: WE ARE REVIEWING THE STATUS OF ACTIONS TAKEN AND WILL ADVISE THE BOARD IN THE NEAR FUTURE.

From: NTSB
To: FAA
Date: 7/21/1980
Response: At the last ntsb/faa quarterly meeting held on march 12, 1980, the faa staff were advised that a number of these recommendations were in an open status awaiting a further response from the faa. In order to evaluate the progress of the recommendations and update the public docket, we would appreciate an updated status report.

From: FAA
To: NTSB
Date: 7/7/1976
Response: FAA LTR: GUST FRONT DETECTION SYSTEMS WILL BE TESTED ON PRIORITY BASIS THIS SUMMER AT ORD & IAD. THIS SHOULD PROVIDE DATA REQUIRED TO DESIGN PRODUCTION SYSTEM. HAVE COMPLETED TESTING AND ARE PREPARING PROCUREMENT SPECS. FOR RADAR DISPLAY OF REMOTE RADAR.