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NTSB Report
February 10, 1984 · Grumman G-73 · N2969
West Palm Beach, FL
Overview
Report Status
Preliminary report
Event Type
Incident
Date
February 10, 1984
Injury Outcomes
No injuries (14 uninjured)
Location
West Palm Beach, FL
Aircraft
Grumman G-73
Tail Number
N2969
Operator
Chalks International Airline
Injuries
None
NTSB Number
MIA84IA077
THE ACFT EXPERIENCED AN ELEVATOR TRIM LOSS, ENCOUNTERED EXTREME 'SHAKING AND VIBRATION' OF CONTROL COLUMN AND TAIL SECTION FLUTTERING WHILE ON DESCENT TO PALM BEACH INT'L ARPT. INVESTIGATION REVEALED THAT THE END OF THE ACTUATOR SHAFT FAILED AT A RIVET HOLE ALLOWING THE ACTUATOR TO DISCONNECT FROM THE TRIM TAB SHAFT ASSEMBLY.
Full Narrative
THE ACFT EXPERIENCED AN ELEVATOR TRIM LOSS, ENCOUNTERED EXTREME 'SHAKING AND VIBRATION' OF CONTROL COLUMN AND TAIL SECTION FLUTTERING WHILE ON DESCENT TO PALM BEACH INT'L ARPT. INVESTIGATION REVEALED THAT THE END OF THE ACTUATOR SHAFT FAILED AT A RIVET HOLE ALLOWING THE ACTUATOR TO DISCONNECT FROM THE TRIM TAB SHAFT ASSEMBLY.
Flight
Event TypeIncident
Event Time11:50 EST
Nearest AirportWest Palm Beach Int'L (0nm N)
Runway0
Runway Length0
Runway Width0
Flight Plan FiledVFR
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftGrumman G-73
Tail NumberN2969
Aircraft CategoryAir
OperatorChalks International Airline
Operating RulePart 135
Engines2
Engine TypeTurboprop
Engine DetailsP&W · PT6A-36 · Turboprop · 750
Seats19
People & Injuries
Injury SummaryNo injuries (14 uninjured)
Fatal0
Serious0
Minor0
Uninjured14
Total14
Crew 1Age 30 · First Class
Conditions
ConditionsVMC
LightDaylight
Wind100° @ 12 kt
Visibility7 sm
CeilingNone
Altimeter30.00 inHg
Observation Time16:50
Weather SourceWFAC