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NTSB Report
August 25, 1992 · Classic Aircraft WACO YMF-5 · N527MN
Surfside Beach, SC
Overview
Report Status
Probable Cause
Event Type
Accident
Date
August 25, 1992
Injury Outcomes
3 injuries (3 minor injuries)
Location
Surfside Beach, SC
Aircraft
Classic Aircraft WACO YMF-5
Tail Number
N527MN
Operator
Beachstormer Air Rides
Injuries
Minor
Aircraft Damage
Substantial
NTSB Number
ATL92LA164
THE SIGHTSEEING FLIGHT WAS ATTEMPTING A LANDING AT THE PRIVATE SOD AIRFIELD. DURING THE LANDING ATTEMPT, THE RIGHT MAIN LANDING GEAR AXLE SEPARATED FROM THE LANDING GEAR STRUT, AND THE AIRCRAFT FLIPPED OVER. METALLURGICAL EXAMINATION REVEALED THAT THE AXLE SEPARATED IN FATIGUE AT THE WELD JOINT BETWEEN THE AXLE AND THE JOINT. MICROSCOPIC EXAMINATION OF THE WELD REVEALED THAT THERE WERE AREAS OF THE WELD WITH MULTIPLE GAS VOIDS AND SLAG INCLUSIONS, AND THAT THE WELD HAD NOT COMPLETELY PENETRATED AT THE AREA OF THE INBOARD SIDE OF THE SADDLE JOINT.
NTSB Probable Cause
THE FAILURE OF THE MAIN LANDING GEAR AS A RESULT OF INADEQUATE MANUFACTURING.
Full Narrative
THE SIGHTSEEING FLIGHT WAS ATTEMPTING A LANDING AT THE PRIVATE SOD AIRFIELD. DURING THE LANDING ATTEMPT, THE RIGHT MAIN LANDING GEAR AXLE SEPARATED FROM THE LANDING GEAR STRUT, AND THE AIRCRAFT FLIPPED OVER. METALLURGICAL EXAMINATION REVEALED THAT THE AXLE SEPARATED IN FATIGUE AT THE WELD JOINT BETWEEN THE AXLE AND THE JOINT. MICROSCOPIC EXAMINATION OF THE WELD REVEALED THAT THERE WERE AREAS OF THE WELD WITH MULTIPLE GAS VOIDS AND SLAG INCLUSIONS, AND THAT THE WELD HAD NOT COMPLETELY PENETRATED AT THE AREA OF THE INBOARD SIDE OF THE SADDLE JOINT.
Flight
Event TypeAccident
Event Time14:30 EDT
Nearest AirportJAVIKA (0nm N)
Runway4
Runway Length4000 ft
Runway Width200 ft
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftClassic Aircraft WACO YMF-5
Tail NumberN527MN
Aircraft CategoryAir
DamageSubstantial
OperatorBeachstormer Air Rides
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsJacobs · R-755B · Reciprocating · 275
Seats3
People & Injuries
Injury Summary3 injuries (3 minor injuries)
Fatal0
Serious0
Minor3
Uninjured0
Total3
Crew 1Age 59 · Second Class
Conditions
ConditionsVMC
LightDaylight
Wind120° @ 7 kt
Visibility7 sm
CeilingNone
Altimeter30.00 inHg
Observation Time18:00
Weather SourceWFAC