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Safety Recommendation Details

Safety Recommendation A-73-076
Details
Synopsis: THE NATIONAL TRANSPORTATION SAFETY BOARD'S INITIAL INVESTIGATION INDICATES THAT ONE OR MORE FAULTS IN A BOEING 707-331B LONGITUDINAL CONTROL SYSTEM MIGHT HAVE BEEN CONTRIBUTORY TO THE CAUSE OF A RECENTACCIDENT INVOLVING TRANS WORLD AIRLINES FLIGHT 742, ON AUGUST 28, 1973. ALTHOUGH THE INVESTIGATION HAS NOT YET BEEN COMPLETED, THE SAFETY BOARD BELIEVES THAT THE INITIAL FINDINGS ARE SUFFICIENT TO JUSTIFY CERTAIN INTERIM ACTIONS DESIGNED TO PRECLUDE THE SERIOUS CONSEQUENCES WHICH MAY RESULT FROM SIMILAR OCCURRENCES.
Recommendation: ISSUE AN AIR CARRIER OPERATIONS BULLETIN WHICH DESCRIBES THE CIRCUMSTANCES OF THIS ACCIDENT, APPLICABLE CAUTIONS REGARDING SUCH INSTABILITY, AND RECOMMENDED PILOT PROCEDURE TO REDUCE THE POSSIBILITY OF A SUSTAINED HIGH "G" OSCILLATION, SHOULD AN INSTABILITY MANIFEST ITSELF.
Original recommendation transmittal letter: PDF
Overall Status: Closed - Acceptable Action
Mode: Aviation
Location: Los Angeles, CA, United States
Is Reiterated: No
Is Hazmat: No
Is NPRM: No
Accident #: LAX74AL019
Accident Reports: Trans World Airlines, Inc., Boeing 707-331B, N8705T
Report #: AAR-74-08
Accident Date: 8/28/1973
Issue Date: 10/5/1973
Date Closed: 10/2/1974
Addressee(s) and Addressee Status: FAA (Closed - Acceptable Action)
Keyword(s):

Safety Recommendation History
From: NTSB
To: FAA
Date: 10/2/1974
Response: Closed--acceptable action.

From: FAA
To: NTSB
Date: 11/2/1973
Response: THE FAA BELIEVES THAT ISSUANCE OF A BULLETIN AT THIS TIME MIGHT TEND TO CONFUSE FLIGHT CREW MEMBERS ON THE PROPER ACTION TO TAKE IN SUCH A SITUATION. THEY ARE WITHHOLDING ACTION PENDING COMPLETION OF THE ACCIDENT INVESTIGATION.10/2/74 THE BOEING COMPANY ISSUED AN OPERATIONAL MANUAL BULLETIN (NUMBER 74-7) ON APRIL 22, 1974, WHICH FULLY TREATED THE SUBJECT OF CONCERN. THIS BULLETIN WAS DISTRIBUTED TO OPERATIONS MANUAL HOLDERS. FAA APPROVAL OF THIS BULLETIN CONSTITUTES COMPLIANCE WITH NTSB RECOMMENDATION A-73-76.