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NTSB Report
May 10, 1986 · Aero Commander S2R · N5509X
Almyra, AR
Overview
Report Status
Preliminary report
Event Type
Accident
Date
May 10, 1986
Injury Outcomes
No injuries (1 uninjured)
Location
Almyra, AR
Aircraft
Aero Commander S2R
Tail Number
N5509X
Injuries
None
Aircraft Damage
Substantial
NTSB Number
MKC86LA102
THE PLT STATED THAT THE LANDING WAS ROUTINE UNTIL HE USED THE BRAKES. AT THIS POINT THE LEFT WHEEL BRAKE ASSEMBLY CAME APART AND THE ACFT VEERED OUT OF CONTROL OFF THE RIGHT SIDE OF THE RWY AND INTO A DITCH, WHERE THE LEFT MAIN LANDING GEAR COLLAPSED. POST ACCIDENT INSPECTION OF THE BRAKE ASSEMBLY REVEALED A WORN OUT BRAKE PISTON. ACCORDING TO AN A&P/IA, THIS PISTON DESIGN ASSEMBLY IS PRONE TO PREMATURE WEAR.
Full Narrative
THE PLT STATED THAT THE LANDING WAS ROUTINE UNTIL HE USED THE BRAKES. AT THIS POINT THE LEFT WHEEL BRAKE ASSEMBLY CAME APART AND THE ACFT VEERED OUT OF CONTROL OFF THE RIGHT SIDE OF THE RWY AND INTO A DITCH, WHERE THE LEFT MAIN LANDING GEAR COLLAPSED. POST ACCIDENT INSPECTION OF THE BRAKE ASSEMBLY REVEALED A WORN OUT BRAKE PISTON. ACCORDING TO AN A&P/IA, THIS PISTON DESIGN ASSEMBLY IS PRONE TO PREMATURE WEAR.
Flight
Event TypeAccident
Event Time20:00 CDT
Nearest AirportAlyra Municipal (0nm N)
Runway28
Runway Length2000 ft
Runway Width50 ft
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftAero Commander S2R
Tail NumberN5509X
Aircraft CategoryAir
DamageSubstantial
Operating RulePart 137
Engines1
Engine TypeReciprocating
Engine DetailsP&W · R-1340-AN-1 · Reciprocating · 600
Seats1
People & Injuries
Injury SummaryNo injuries (1 uninjured)
Fatal0
Serious0
Minor0
Uninjured1
Total1
Crew 1Age 42 · Second Class
Conditions
ConditionsVMC
LightDusk
Wind180° @ 4 kt
Visibility15 sm
CeilingNone
Temperature / Dew Point66 F
Altimeter29.00 inHg
Observation Time00:50
Weather SourceWFAC