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NTSB Report
March 9, 1990 · North American T-6 G · N96143
Albany, GA
Overview
Report Status
Probable Cause
Event Type
Accident
Date
March 9, 1990
Injury Outcomes
No injuries (2 uninjured)
Location
Albany, GA
Aircraft
North American T-6 G
Tail Number
N96143
Injuries
None
Aircraft Damage
Substantial
NTSB Number
ATL90LA078
WHILE ATTEMPTING A FULL STOP LANDING, THE PILOT LOST DIRECTIONAL CONTROL WHEN THE LEFT BRAKE ASSEMBLY LOCKED AT TOUCHDOWN. THE AIRPLANE GROUND LOOPED AND VEERED OFF THE RIGHT SIDE OF THE RUNWAY. THE PILOT REPORTED EXPERIENCING A LOCKED LEFT BRAKE WHICH PREVENTED HIM FROM REGAINING DIRECTIONAL CONTROL. THE PILOT CONTENDED AFTER SOME RESEARCH THAT THE POOL OF WATER WHICH HE TAXIIED THROUGH WHILE TAXIING FOR TAKEOFF FROM GREENWOOD, MISSISSIPPI CAUSED THE BRAKE MATERIAL TO EXPAND ABOUT .090 INCHES. NORMAL CLEARANCE BETWEEN THE BRAKE DRUM AND THE BRAKE MATERIAL IS .010 INCHES. THIS EXPANSION CAUSED THE LEFT BRAKE TO LOCK, PREVENTING THE WHEEL FROM ROLLING FREELY.
NTSB Probable Cause
A LOCKED BRAKE WHICH PREVENTED THE PILOT FROM MAINTAINING DIRECTIONAL CONTROL DURING THE LANDING ROLL. THE BRAKE MATERIAL EXPANDED AFTER BECOMING WATER SOAKED WHILE TAXIING.
Full Narrative
WHILE ATTEMPTING A FULL STOP LANDING, THE PILOT LOST DIRECTIONAL CONTROL WHEN THE LEFT BRAKE ASSEMBLY LOCKED AT TOUCHDOWN. THE AIRPLANE GROUND LOOPED AND VEERED OFF THE RIGHT SIDE OF THE RUNWAY. THE PILOT REPORTED EXPERIENCING A LOCKED LEFT BRAKE WHICH PREVENTED HIM FROM REGAINING DIRECTIONAL CONTROL. THE PILOT CONTENDED AFTER SOME RESEARCH THAT THE POOL OF WATER WHICH HE TAXIIED THROUGH WHILE TAXIING FOR TAKEOFF FROM GREENWOOD, MISSISSIPPI CAUSED THE BRAKE MATERIAL TO EXPAND ABOUT .090 INCHES. NORMAL CLEARANCE BETWEEN THE BRAKE DRUM AND THE BRAKE MATERIAL IS .010 INCHES. THIS EXPANSION CAUSED THE LEFT BRAKE TO LOCK, PREVENTING THE WHEEL FROM ROLLING FREELY.
Flight
Event TypeAccident
Event Time13:20 EST
Nearest AirportSouthwest Ga Reg. (0nm N)
Runway16
Runway Length5200 ft
Runway Width150 ft
Flight Plan FiledIFR
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftNorth American T-6 G
Tail NumberN96143
Aircraft CategoryAir
DamageSubstantial
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsP&W · R 1340-AN1 · Reciprocating · 600
Seats1
People & Injuries
Injury SummaryNo injuries (2 uninjured)
Fatal0
Serious0
Minor0
Uninjured2
Total2
Crew 1Age 59 · Second Class
Conditions
ConditionsVMC
LightDaylight
Wind165° @ 6 kt
Visibility6 sm
CeilingBroken clouds 2500 ft
Temperature / Dew Point70 F / 52
Altimeter30.00 inHg
Observation Time18:20
Weather SourceWFAC