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NTSB Report
September 19, 1985 · Cessna 425 · N1222B
Boulder, CO
Overview
Report Status
Preliminary report
Event Type
Accident
Date
September 19, 1985
Injury Outcomes
No injuries (3 uninjured)
Location
Boulder, CO
Aircraft
Cessna 425
Tail Number
N1222B
Injuries
None
Aircraft Damage
Substantial
NTSB Number
DEN85LA244
THE PLT SAID HE MADE A NORMAL LDG. DURING LDG ROLL THE LEFT BRAKE WOULD NOT RESPOND TO PEDAL APPLICATION. THE PLT ERRORED BY INCORRECTLY FEATHERING BOTH PROPS. THE A/C WENT OFF THE ENG OF R/W AND STRUCK A FENCE. EXAMINATION OF THE BRAKE SYSTEM REVEALED A BRAKE PUCK WAS MISSING. A MISSING PUCK WOULD CAUSE POOR BRAKING ACTION.
Full Narrative
THE PLT SAID HE MADE A NORMAL LDG. DURING LDG ROLL THE LEFT BRAKE WOULD NOT RESPOND TO PEDAL APPLICATION. THE PLT ERRORED BY INCORRECTLY FEATHERING BOTH PROPS. THE A/C WENT OFF THE ENG OF R/W AND STRUCK A FENCE. EXAMINATION OF THE BRAKE SYSTEM REVEALED A BRAKE PUCK WAS MISSING. A MISSING PUCK WOULD CAUSE POOR BRAKING ACTION.
Flight
Event TypeAccident
Event Time17:00 MDT
Nearest AirportBoulder Municipal (0nm N)
Runway0
Runway Length4100 ft
Runway Width75 ft
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftCessna 425
Tail NumberN1222B
Aircraft CategoryAir
DamageSubstantial
Operating RulePart 91
Engines2
Engine TypeTurboprop
Engine DetailsP&W · TT6A-112A · Turboprop · 450
Seats12
People & Injuries
Injury SummaryNo injuries (3 uninjured)
Fatal0
Serious0
Minor0
Uninjured3
Total3
Crew 1Age 59 · Second Class
Conditions
ConditionsVMC
LightDaylight
Wind270° @ 5 kt
Visibility60 sm
CeilingNone
Temperature / Dew Point0 C
Altimeter30.00 inHg
Observation Time16:45
Weather SourcePILO