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Safety Recommendation Details

Safety Recommendation A-76-033
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: INSTALL EQUIPMENT CAPABLE OF DETECTING VARIATIONS IN THE SPEED OF THE LONGITUDINAL, LATERAL, AND VERTICAL COMPONENTS OF THE WINDS AS THEY EXIST ALONG THE PROJECTED TAKEOFF AND APPROACH FLIGHTPATHS WITHIN 1 NMI OF THE ENDS OF ACTIVE RUNWAYS WHICH SERVE AIR CARRIER AIRCRAFT.
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, Wind

Safety Recommendation History
From: NTSB
To: FAA
Date: 8/21/1981
Response: We note that the faa, along with other government agencies, has undertaken extensive research toward development of sensors for the detection of variations in wind speed components in the approach and takeoff phase of flight. We are informed that developments thus far have proved of limited value but that the faa will continue to invent in the nexrad program. We recognize the technological constraints associated with this recommendation and, in view of the faa's proposed expansion of the ground- based llwsas, we are satisfied that the intent of this recommenda- tion has been met. Safety recommendation a-76-33 is classified in a closed--acceptable action status.

From: FAA
To: NTSB
Date: 5/1/1981
Response: FEDERAL AVIATION ADMINISTRATION LTR: THE MOST PROMISING METHOD FOR DETECTING AND COPING WITH WIND SHEAR CONDITIONS DEVELOPED TO DATE INCORPORATES AIRBORNE SENSING EQUIPMENT, A KNOWLEDGE IN THE COCKPIT OF WINDS IN THE TOUCHDOWN ZONE BASED ON DATA OBTAINED FROM GROUND SENSING EQUIPMENT, AND AN ELECTRONIC GLIDE SLOPE REFERENCE. AS A RESULT, THE FAA IS INCREASING THE NUMBER OF INSTRUMENT LANDING SYSTEMS (ILS'S) AT AIR CARRIER SERVICED AIRPORTS, AND IMLEMENTING THE MICROWAVE LANDING SYSTEM THAT WILL PROVIDE ELECTRONIC GLIDE SLOPE INFORMATION IN LOCATIONS WHERE INSTALLATION OF AN ILS IS IMPRACTICAL. IN ADDITION WE ARE PROCEEDING WITH RULEMAKING ACTION TO REQUIRE THE NECESSARY AIRBORNE EQUIPMENT, DEVELOPING A DATA LINK SYSTEM TO PROVIDE TIMELY WIND INFORMATION AS WELL AS OTHER HAZARDOUS WEATHER INFORMATION IN THE COCKPIT, AND, AS NOTED EARLIER, WE ARE EXPANDING THE GROUND-BASED LLWSAS. THE FAA FSS AUTOMATION PROGRAM WILL ALSO ENHANCE THE TRANSMITTAL OF HAZARDOUS WEATHER INFORMATION TO THE COCKPIT.

From: NTSB
To: FAA
Date: 4/17/1981
Response:

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: EQUIPMENT DOES NOT EXIST. PROGRAMS UNDERWAY TO DEVELOP OR REFINE SENSORS. EXPECT COMPLETION OF PROGRAM BY JUNE 1978.