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Safety Recommendation Details

Safety Recommendation A-71-053
Details
Synopsis: ON FEBRUARY 17, 1971 AT APPROXIMATELY 0809 C.S.T., A SOUTHERN AIRWAYS DOUGLAS DC-9-15, N92S STRUCK AN ELECTRIC TRANSMISSION LINE STATIC CABLE DURING A VOR APPROACH TO RUNWAY 31 AT THE GULFPORT, MISSISSIPPI, MUNICIPAL AIRPORT. A SUCCESSFUL MISSED APPROACH WAS APPROACH WAS ACCOMPLISHED, AND THE AIRCRAFT LANDED AT GULFPORT. OF THE SEVEN PASSENGER AND FOUR CREW ABOARD THE AIRCRAFT, THE ONLY REPORTED INJURY WAS A PASSENGER'S SCRATCHED HAND. THE AIRCRAFT RECEIVED SUBSTANTIAL DAMAGE TO THE LEFT MAIN LANDING GEAR, LEFT WING LEFT FUSELAGE, AND THE LEFT ENGINE. THERE WAS NO FIRE. THE WEATHER WAS A PARTIAL OBSCURATION WITH VISIBILITY 3/4 MILE I FOG. THE NATIONAL TRANSPORTATION SAFETY BOARD DETERMINES THAT THE PROBABLE CAUSE OF THIS ACCIDENT WAS INADEQUATE MONITORING OF THE APPROACH. THE CAPTAIN WAS PREOCCUPIED WITH THE PRELANDING CHECKLIST DURING THE FINAL APPROACH, AND THE FIRST OFFICER, WHO WAS FLYING THE AIRCRAFT, WAS DEVOTING HIS ATTENTION TO AN ATTEMPT TO ESTABLISH VISUAL CONTACT WITH THE RUNWAY IN LOW VISIBILITY. THESE ACTIVITIES RESULTED IN AN IMPROPERLY EXECUTED VOR/DME APPROACH DURING WHICH THE AIRCRAFT DESCENDED BELOW THE MINIMUM DESCENT ALTITUDE BEFORE THE CREW ACQUIRED VISUAL CONTACT WITH THE RUNWAY ENVIRONMENT.
Recommendation: DEVELOP A GROUND PROXIMITY WARNING SYSTEM FOR USE IN THE APPROACH AND LANDING PHASES OF OPERATION WHICH WILL WARN FLIGHT CREWS OF EXCESSIVE RATES OF DESCENT, UNWANTED/INADVERTENT DESCENT BELOW MINIMUM DESCENT ALTITUDES, OR DESCENT ALTITUDES , OR DESCENT THROUGH DECISION HEIGHTS. IT WOULD BE DESIRABLE IF THE EQUIPMENT NOW INSTALLED COULD MEET THIS NEED.
Original recommendation transmittal letter: PDF
Overall Status: Closed--No Longer Applicable
Mode: Aviation
Location: Gulfport, MS, United States
Is Reiterated: No
Is Hazmat: No
Is NPRM: No
Accident #: MIA71AM071
Accident Reports: Southern Airways, Inc., Douglas DC-9-15, N92S
Report #: AAR-71-14
Accident Date: 2/17/1971
Issue Date: 9/1/1971
Date Closed: 11/2/1973
Addressee(s) and Addressee Status: FAA (Closed--No Longer Applicable)
Keyword(s):

Safety Recommendation History
From: FAA
To: NTSB
Date: 11/15/1971
Response: THE FAA RESPONDED STATING THAT THEY BELIEVE THE PRESENT INSTRUMENTATION AND PROCEDURES ARE SAFE AND ADEQUATE PROVIDED COCKPIT DISCIPLINES ARE MAINTAINED. RECOMMENDATIONS A-71-53 AND A-71-54 SUPERSEDED BY SUBSEQUENT RECOMMENDATIONS AND NPRM'S. SEE NOT. 650 REC. A-72-19 & 20 DATED 2/25/72, AND NOT. 754 REC. A-72-34 THRU 36 ISSUED 4/17/72.