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Safety Recommendation Details

Safety Recommendation A-93-136
Details
Synopsis: ON MARCH 31, 1993, THE NO.2 ENGINE AND ENGINE PYLON SEPARATED FROM JAPAN AIRLINES, INC., FLIGHT 46E, A BOEING 747-121, THAT HAD BEEN WET-LEASED FROM EVERGREEN INTERNATIONAL AIRLINES, INC., SHORTLY AFTER DEPARTURE FROM ANCHORAGE INTERNATIONAL AIRPORT, ANCHORAGE, ALASKA. THE ACCIDENT OCCURRED ABOUT 1234 ALASKA STANDARD TIME. THE FLIGHT WAS A SCHEDULED CARGO FLIGHT FROM ANCHORAGE TO CHICAGO-O'HARE INTERNATIONAL AIRPORT, CHICAGO, ILLINOIS. ON BOARD THE AIRPLANE WERE THE FLIGHTCREW, CONSISTING OF THE CAPTAIN, THE FIRST OFFICER, AND THE SECOND OFFICER, AND TWO NONREVENUE COMPANY EMPLOYEES. THE AIRPLANE WAS SUBSTANTIALLY DAMAGED DURING THE SEPARATION OF THE ENGINE. NO ONE ON BOARD THE AIRPLANE OR ON THE GROUND WAS INJURED.
Recommendation: THE NTSB RECOMMENDS THAT THE FEDERAL AVIATION ADMINISTRATION: DEVELOP AND IMPLEMENT A METEOROLOGICAL PROGRAM TO OBSERVE, DOCUMENT, AND ANALYZE POTENTIAL METEOROLOGICAL AIRCRAFT HAZARDS IN THE AREA OF ANCHORAGE INTERNATIONAL AIRPORT, ANCHORAGE, ALASKA, WITH AN EMPHASIS ON THE APPROACH AND DEPARTURE PATHS OF THE AIRPORT.
Original recommendation transmittal letter: PDF
Overall Status: Closed - Unacceptable Action
Mode: Aviation
Location: ANCHORAGE, AK, United States
Is Reiterated: No
Is Hazmat: No
Is NPRM: No
Accident #: DCA93MA033
Accident Reports: In-Flight Engine Separation Japan Airlines, Inc., Flight 46E Boeing 747-121, N473EV
Report #: AAR-93-06
Accident Date: 3/31/1993
Issue Date: 11/15/1993
Date Closed: 6/20/1995
Addressee(s) and Addressee Status: FAA (Closed - Unacceptable Action)
Keyword(s): Weather

Safety Recommendation History
From: NTSB
To: FAA
Date: 6/20/1995
Response: THE BOARD NOTES THAT THE FAA DOES NOT PLAN ON CREATING THE RECOMMENDED METEOROLOGICAL PROGRAM, IN PART BECAUSE OF THE PROGRAMS BEING PURSUED BY THE NOAA, WHICH WILL INCREASE PILOT'S AWARENESS OF MOUNTAIN-INDUCED METEOROLOGICAL CONDITIONS. WHILE THE BOARD FINDS MERIT IN THESE PROGRAMS, THE BOARD BELIEVES THAT THEY ARE GENERIC & DO NOT MEET THE INTENT OF THE SUBJECT RECOMMENDATION. THE BOARD'S INVESTIGATION FOUND THAT THE FLIGHTCREW WAS AWARE OF REPORTS OF SEVERE TURBULENCE IN THE ANCHORAGE AREA. HOWEVER, SUCH REPORTS DO NOT ASSIST FLIGHTCREWS IN MANEUVERING THEIR AIRPLANES TO AVOID THE WORST AREAS OF TURBULENCE THAT COULD DAMAGE THE AIRPLANE. THE INTENT OF THE RECOMMENDATION WAS FOR THE FAA TO CREATE A PROGRAM TO IDENTIFY AREAS NEAR THE ANCHORAGE AIRPORT WHERE RESEARCH HAS INDICATED THAT THE GREATEST LEVELS OF TURBULENCE MAY EXIST. THIS INFO, COMBINED WITH THE DATA PROVIDED BY DOPPLER WEATHER RADAR, WOULD PROVIDE CONTROLLERS & PILOTS WITH THE NECESSARY INFO TO AVOID AREAS OF EXTREME TURBULENCE & THUS IMPROVE THE SAFETY OF AIRPLANES TAKING OFF & LANDING AT ANCHORAGE. BECAUSE THE FAA PLANS NO FURTHER ACTION IN RESPONSE TO THIS RECOMMENDATION, THE BOARD HAS CLASSIFIED A-93-136 "CLOSED--UNACCEPTABLE ACTION."

From: FAA
To: NTSB
Date: 2/23/1995
Response: THE FAA DOES NOT BELIEVE THAT A METEOROLOGIAL PROGRAM AS DESCRIBED BY THIS SAFETY RECOMMENDATION IS NECESSARY, IN PART, BECAUSE OF THE PROGRAM ALREADY UNDERWAY AT COLORADO SPRINGS, COLORADO. ONE OF THE BOARD'S RECOMMENDATIONS MADE AFTER THE COLORADO SPRINGS ACCIDENT WAS TO DEVELOP A BROADER METEOROLOGICAL AIRCRAFT HAZARD PROGRAM TO INCLUDE OTHER AIRPORTS IN OR NEAR MOUNTAINOUS TERRAIN BASED ON THE RESULTS OBTAINED IN THE COLORADO SPRINGS, COLORADO, AREA. THUS FAR IN FISCAL YEAR 1995, THE NOAA FORECAST SYSTEMS LABORATORY & THE NATIONAL CENTER FOR ATMOSPHERIC RESEARCH HAVE DELIVERED TWO PRODUCTS WHICH DIRECTLY ADDRESS METEOROLOGICAL AIRCRAFT HAZARDS AT ANCHORAGE & OTHER AIRPORTS IN OR NEAR MOUNTAINOUS TERRAIN. THE FIRST IS A PROPOSED PROGRAM ENTITLED PROGRAM TO IMPROVE MOUNTAIN FLYING SAFETY.

From: NTSB
To: FAA
Date: 6/17/1994
Response: THE BOARD NOTES THAT THE FAA HAS A METEOROLOGICAL RESEARCH PROGRAM UNDERWAY AT COLORADO SPRINGS, COLORADO, IN CONJUCTION WITH THE NATIONAL OCEANIC & ATMOSPHERIC ADMINSTRATION'S FORECAST SYSTEMS LABORATORY. THE FAA BELIEVES THE RESULTS OF THE STUDY SHOULD ESTABLISH A SATISFACTORY BASIS TO SUPPLEMENT EXISTING DATA ABOUT THE OROGRAPHIC TURBULENCE CREATED BY STRONG WINDS WITH A FLOW PATTERN THAT IS ALIGNED WITH OBSTRUCTING AND CHANNELING TERRAIN. THE BOARD WOULD LIKE TO KNOW HOW THE FAA PLANS TO DEVELOP & IMPLEMENT THE DATA GATHERED FROM THE COLORADO SPRINGS RESEARCH PROGRAM TO DETERMINE THE METEOROLOGICAL AIRCRAFT HAZARDS IN THE AREA OF OTHER AIRPORTS. THE BOARD IS ESPECIALLY INTERESTED IN HOW THE DATA WILL BE APPLIED IN HANDLING AIRCRAFT ON APPROACH & DEPARTURE PATHS WHEN SEVERE TURBLULENCE IS FORECAST OR REPORTED IN THE IMMEDIATE AREA OF THE ANCHORAGE INTERNATIONAL AIRPORT. ADDITIONALLY, THE BOARD WOULD LIKE TO KNOW HOW THE FAA PLANS TO USE DATA OBTAINED FORM THE NEXT GENERATION DOPPLER WEATHER RADAR SYSTEM (WRS-88D), TO DOCUMENT METEOROLOGICAL HAZARDS & PROVIDE TIMELY ADVISORIES OF IDENTIFIED HAZARDS TO ARRIVING & DEPARTING AIRCRAFT IN THE ANCHORAGE AIRPORT AREA. PENDING FURTHER INFO, THE BOARD CLASSIFIES A-93-136 "OPEN--ACCEPTABLE RESPONSE."

From: FAA
To: NTSB
Date: 2/24/1994
Response: THE FAA DOES NOT BELIEVE THAT A METEOROLOGICAL PROGRAM AS DESCRIBED BY THIS RECOMMENDATION IS NECESSARY AT THIS TIME.