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Safety Recommendation Details

Safety Recommendation A-72-063
Details
Synopsis: THIS STUDY EXAMINES THE CONDITION AND CIRCUMSTANCES WHICH DETERMINED THE OUTCOME OF THE DITCHING OF A DC-9 AIRCRAFT IN REGARD TO THE SURVIVAL AND NONSURVIVAL OF THE OCCUPANTS. IT WAS FOUND THAT THE PASSENGERS WERE PREPARED INADEQUATELY FOR THE DITCHING DUE TO A COMBINATION OF FACTORS INCLUDING INSUFFICIENT PREPARATION TIME, INADEQUATE BRIEFINGS, INSUFFICIENT TRAINING AND THE LACK OF PROPER CREW COORDINATION. IT WAS ESTIMATED THAT DECELERATIVE FORCES WERE INTHE ORDER OF 8 TO 12 G'S, CAUSING UNRESTRAINED OCCUPANTS TO BE THROWN FORWARD, INDUCING SEAT FAILURES AND SPINAL INJURIES. THE CAUSE OF SEATS, SEATBELT, AND GALLEY EQUIPMENT FAILURES WERE ANALYZED. IT WAS ESTIMATED THAT THE AIRCRAFT REMAINED AFLOAT FOR 5 TO 6 MINUTES. THE FACT THAT A LIFERAFT INFLATED INSIDE THE AIRCRAFT WAS ATTRIBUTED TO IMPINGEMENT OF THE RAFT PACKAGE BY THE GALLEY STRUCTURE, FORCING THE CREWMEMBERS OUT OF THE AIRCRAFT. LEADERSHIP OF THE CREW WHILE AWAITING RESCUE AND AN INFLATED EMERGENCY ESCAPE SLIDE MINIMIZED FURTHER LOSS OF LIFE. RECOMMENDATIONS WERE ADVANCED DEALING WITH INCREASED TRAINING FOR CREWMEMBERS, BETTER PASSENGER COMMUNICATION TECHNIQUES, INCREASED STRENGTH REQUIREMENTS FOR SEATS,SEATBELTS, AND GALLEY EQUIPMENT AND THE DEVELOPMENT OF SLIDE RAFT COMBINATIONS AND LIFEVEST DESIGN. TWENTY REFERENCES ARE INCLUDED.
Recommendation: EXPAND AND ACCELERATE ITS INVESTIGATION OF THE FAILURE MODE OF GALLEY DRAWERS, BINS, OVENS, ETC., WITH A VIEW TOWARDS ELIMINATION OF SUCH FAILURES IN CURRENT AIRCRAFT, AS WELL AS IN FUTURE AIRCRAFT.
Original recommendation transmittal letter: PDF
Overall Status: Closed - Acceptable Action
Mode: Aviation
Location: St. Croix, Virgin Islands
Is Reiterated: No
Is Hazmat: No
Is NPRM: No
Accident #: DCA70AZ007
Accident Reports: Overseas National Airways, Inc., Douglas DC-9. Operating as Antilliaanse Lucht- vaart Moatschappij Flight 980
Report #: AAS-72-02
Accident Date: 5/2/1970
Issue Date: 4/5/1972
Date Closed: 8/26/1974
Addressee(s) and Addressee Status: FAA (Closed - Acceptable Action)
Keyword(s):

Safety Recommendation History
From: FAA
To: NTSB
Date: 7/20/1972
Response: 2/16/73 - FAA RESPONDED TO RECOMMENDATION NO. 1 STATING THE FLIGHT STANDARDS SERVICE ORGANIZED IN APRIL 1971, A DIRECTED SAFETY INVESTIGATION TO ASSESS THE REPORTS OF HAZARDS AND OTHER UNSATISFACTORY CONDITIONS THAT DETRACTED FROM A SAFE WORKING ENVIRONMENT FOR FLIGHT ATTENDANTS ON AIR CARRIER AIRCRAFT. THE STUDY WAS COMPLETED ON FEBRUARY 25, 1972, AND SUBSEQUENT DEFICIENCIES AND PROBLEM AREAS WERE DOCUMENTED AND CORRECTIVE ACTIONS WERE IMPLEMENTED. IN ORDER TO ASSURE CONTINUED ADEQUACY OF GALLEY INSTALLATIONS, CLOSE SURVEILLANCE OF THE GALLEY AREAS DURING IN-FLIGHT INSPECTIONS HAS BEEN INSTITUTED AND IMPROVED GUIDANCE INFORMATION CONCERNING GALLEY DESIGN AND STRENGTH IS BEING PROVIDED TO FIELD PERSONNEL.