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Safety Recommendation Details

Safety Recommendation A-72-066
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: AT ITS EARLIEST OPPORTUNITY, ACT UPON A RECOMMENDATION MADE PREVIOUSLY BY THE BOARD REGARDING THE METAL-TO-FABRIC SEATBELTS, TO ELIMINATE THEIR USE IN AIRCRAFT OF U.S. REGISTRY IN FAVOR OF THE METAL-TO-METAL TYPE OF SEATBELTS WITH A STANDARDIZED ACTUATING DEVICE.
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: 3/12/1979
Addressee(s) and Addressee Status: FAA (Closed - Acceptable Action)
Keyword(s):

Safety Recommendation History
From: NTSB
To: FAA
Date: 3/12/1979
Response:

From: FAA
To: NTSB
Date: 7/20/1972
Response: FAA RESPONSE: FAA LETTER OF JUNE 29, 1971, EXPLAINED THEIR POSITION ON RECOMMENDATION. NPRM 75-31 ISSUED. COMMENTS UNDER REVIEW BY FAA. 9/1/77 - FAA ISSUED NPRM 70-20 TO AMEND PARTS 23, 25, 27, 29 AND 91 OF FAR'S TO REQUIRE EACH SAFETY BELT TO BE EQUIPPED WITH A METAL-TO-METAL BUCKLE OR LATCHING DEVICE. COMMENTS ARE DUE TO THE FAA ON OR BEFORE 12/1/77. 1/31/79 - FAA LTR: OPERATIONS REVIEW PROGRAM AMENDMENT NO. 6 WAS ISSUED ON SEPTEMBER 28, 1978, WITH AN EFFECTIVE DATE OF DECEMBER 4, 1978. SECTIONS 23.1413(C), 25.1413(D), 27.1413(C), AND 29.1413(B) OF THE FEDERAL AVIATION REGULATIONS WERE AMENDED TO REQUIRE THAT EACH SAFETY BELT MUST BE EQUIPPED WITH METAL-TO-METAL LATCHING DEVICE. SECTION 91.33(B)(12) WAS AMENDED TO REQUIRE, AFTER DECEMBER 4, 1980, SEATBELTS WITH METAL-TO-METAL LATCHING DEVICES FOR ALL OCCUPANTS.