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NTSB Report
August 27, 1989 · Waco UPF7 · N2369Q
Watkins, CO
Overview
Report Status
Probable Cause
Event Type
Accident
Date
August 27, 1989
Injury Outcomes
No injuries (2 uninjured)
Location
Watkins, CO
Aircraft
Waco UPF7
Tail Number
N2369Q
Injuries
None
Aircraft Damage
Substantial
NTSB Number
DEN89LA201
THE PLT WAS TAKING PART IN AN AIRSHOW WITH A PERSON STANDING ON THE LEFT WING. THE PLT SAID THAT WHEN BRAKES WERE APPLIED DURING LANDING ROLL, THE RIGHT BRAKE OPERATED PROPERLY, BUT THE LEFT BRAKE FAILED. THE PLANE THEN TURNED RIGHT AND DEPARTED THE RUNWAY, RESULTING IN A GROUND LOOP. THE LEFT WING STRUCK THE GROUND AND BOTH LEFT WINGS WERE BENT. THE PERSON, WHO WAS STANDING ON THE LEFT LOWER WING, WAS THROWN CLEAR. A POST-ACDNT EXAM REVEALED THAT 3 OF THE 4 BRAKE PADS WERE MISSING FROM THE LEFT BRAKE.
NTSB Probable Cause
FAILURE OF THE LEFT BRAKE ASSEMBLY, AND SUBSEQUENT LOSS OF DIRECTIONAL CONTROL BY THE PILOT.
Full Narrative
THE PLT WAS TAKING PART IN AN AIRSHOW WITH A PERSON STANDING ON THE LEFT WING. THE PLT SAID THAT WHEN BRAKES WERE APPLIED DURING LANDING ROLL, THE RIGHT BRAKE OPERATED PROPERLY, BUT THE LEFT BRAKE FAILED. THE PLANE THEN TURNED RIGHT AND DEPARTED THE RUNWAY, RESULTING IN A GROUND LOOP. THE LEFT WING STRUCK THE GROUND AND BOTH LEFT WINGS WERE BENT. THE PERSON, WHO WAS STANDING ON THE LEFT LOWER WING, WAS THROWN CLEAR. A POST-ACDNT EXAM REVEALED THAT 3 OF THE 4 BRAKE PADS WERE MISSING FROM THE LEFT BRAKE.
Flight
Event TypeAccident
Event Time16:30 MDT
Nearest AirportFront Range (0nm N)
Runway8
Runway Length8000 ft
Runway Width100 ft
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftWaco UPF7
Tail NumberN2369Q
Aircraft CategoryAir
DamageSubstantial
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsP&W · R-1340 · Reciprocating · 600
Seats2
People & Injuries
Injury SummaryNo injuries (2 uninjured)
Fatal0
Serious0
Minor0
Uninjured2
Total2
Crew 1Age 31 · First Class
Conditions
ConditionsVMC
LightDaylight
Wind90° @ 10 kt
Visibility100 sm
CeilingNone
Temperature / Dew Point0 C / 0 C
Altimeter0
Weather SourcePILO