Skip Ribbon Commands
Skip to main content
Safety Recommendation Details

Safety Recommendation A-72-064
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: REEXAMINE THE APPLICABLE TECHNICAL STANDARD ORDER GOVERNING THE DESIGN AND MANUFACTURE OF LIFEVESTS WITH A VIEW TOWARDS DEVELOPMENT OF MORE COMFORTABLE, STANDARDIZED, AND LESS COMPLICATED LIFEVESTS FOR USE IN AIR CARRIER 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: 10/31/1983
Addressee(s) and Addressee Status: FAA (Closed - Acceptable Action)
Keyword(s):

Safety Recommendation History
From: NTSB
To: FAA
Date: 10/31/1983
Response:

From: FAA
To: NTSB
Date: 10/28/1983
Response: FAA LETTER: THE FEDERAL AVIATION ADMINISTRATION (FAA) HAS COMPLETED ITS REVIEW OF THE COMMENTS RECEIVED ON TECHNICAL STANDARD ORDER C13D. THE FAA AGREES WITH THE NTSB'S COMMENT ON PACKAGING OF LIFE PRESERVERS AND INCORPORATED IT INTO TECHNICAL STANDARD ORDER C13D. IT WAS ISSUED JANUARY 3, 1983. THE FAA CONSIDERS ACTION COMPLETED ON SAFETY RECOMMENDATION A-72-64.

From: NTSB
To: FAA
Date: 9/30/1982
Response:

From: FAA
To: NTSB
Date: 8/20/1982
Response: FAA LTR: A DRAFT NOTICE OF TECHNICAL STANDARD ORDER (TSO) C-13D WAS PUBLISHED IN THE FEDERAL REGISTER ON NOVEMBER 16, 1982 FOR COMMENTS. THE COMMENTS HAVE BEEN RECEIVED AND ARE BEING REVIEWED. THE FINAL TSO C-13D SHOULD BE ISSUED BY DECEMBER 1982.

From: NTSB
To: FAA
Date: 6/30/1982
Response:

From: FAA
To: NTSB
Date: 8/11/1972
Response:

From: FAA
To: NTSB
Date: 6/29/1971
Response: FAA LTR: REASSESSMENT OF LIFE RAFTS, LIFE PRESERVERS, AND INDIVIDUAL FLOTATION DEVICES HAS BEEN INITIATED WITH THE OBJECTIVE OF UPGRADING TECHNICAL STANDARD ORDERS IN LIGHT OF MORE RECENT ADVANCES IN TECHNOLOGY. IN ADDITION, CONSIDERABLE WORK HAS BEEN ACCOMPLISHED ON STANDARDS FOR THE NEW COMBINED INFLATABLE EMERGENCY EVACUATION SLIDE-LIFE RAFTS. GUIDELINES FOR APPROVAL OF THESE SLIDE/RAFTS HAVE BEEN DEVELOPED AND MANUFACTURERS ARE PURSUING DESIGNS FOR EXISTING AIRPLANES. THE DOOR-MOUNTED SLIDE/RAFTS SHOULD OVERCOME A NUMBER OF PROBLEMS NORMALLY ENCOUNTERED DURING THE LAUNCHING OF CONVENTIONAL LIFE RAFTS. THIS WORK IS BEING DIRECTED TOWARD IN-SERVICE AIRPLANES AS WELL AS AIRPLANES OF NEW DESIGN.