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NTSB Report
November 30, 1988 · Swearingen SA-226T · N263CM
Washington, DC
Overview
Report Status
Probable Cause
Event Type
Accident
Date
November 30, 1988
Injury Outcomes
No injuries (1 uninjured)
Location
Washington, DC
Aircraft
Swearingen SA-226T
Tail Number
N263CM
Operator
John T Rocca
Injuries
None
Aircraft Damage
Substantial
NTSB Number
BFO89LA013
THE PLT RPRTD HE WAS FLYING AN AUTOPILOT COUPLED ILS APCH WHEN THE YAW DAMPER & AUTOPILOT DISENGAGED. AFTER SOME DIFFICULTY, THE PLT WAS ABLE TO KEEP THE AUTOPILOT ENGAGED. HE SAID HE DISENGAGED THE AUTOPILOT ON FINAL APCH AT AN ALT OF APRX 250' AGL. HE LOWERED FULL FLAPS & SLOWED THE ACFT TO 107 KTS. THE PLT STATED THAT AFTER THE ACFT TOUCHED DOWN & TRAVELED APRX 1000', ITS NOSE BEGAN TO RISE & OSCILLATE. HE ABORTED THE LNDG, BUT HE WAS UNABLE TO GET AN UP & LOCKED INDICATION FOR THE NOSE GEAR, ALTHOUGH IT WOULD LOCK DOWN. AFTER MAKING A FLY-BY TO VERIFY THE GEAR POSITION, HE MADE A 'SLOW' LNDG. THE PLT RPRTD THAT ALTHOUGH A SLIGHT OSCILLATION WAS NOTED DRG THE LNDG, HE FORCEFULLY HELD THE NOSE DOWN AS HE SLOWED THE ACFT. TESTING & EVALUATION OF THE AUTOPILOT SYSTEM FAILED TO DISCLOSE ANY DISCREPANCY WHICH WOULD HAVE RESULTED IN THE OSCILLATIONS.
NTSB Probable Cause
PILOTS FAILURE TO MAINTAIN CONTROL OF THE AIRPLANE DURING A TOUCH AND GO LANDING.
Full Narrative
THE PLT RPRTD HE WAS FLYING AN AUTOPILOT COUPLED ILS APCH WHEN THE YAW DAMPER & AUTOPILOT DISENGAGED. AFTER SOME DIFFICULTY, THE PLT WAS ABLE TO KEEP THE AUTOPILOT ENGAGED. HE SAID HE DISENGAGED THE AUTOPILOT ON FINAL APCH AT AN ALT OF APRX 250' AGL. HE LOWERED FULL FLAPS & SLOWED THE ACFT TO 107 KTS. THE PLT STATED THAT AFTER THE ACFT TOUCHED DOWN & TRAVELED APRX 1000', ITS NOSE BEGAN TO RISE & OSCILLATE. HE ABORTED THE LNDG, BUT HE WAS UNABLE TO GET AN UP & LOCKED INDICATION FOR THE NOSE GEAR, ALTHOUGH IT WOULD LOCK DOWN. AFTER MAKING A FLY-BY TO VERIFY THE GEAR POSITION, HE MADE A 'SLOW' LNDG. THE PLT RPRTD THAT ALTHOUGH A SLIGHT OSCILLATION WAS NOTED DRG THE LNDG, HE FORCEFULLY HELD THE NOSE DOWN AS HE SLOWED THE ACFT. TESTING & EVALUATION OF THE AUTOPILOT SYSTEM FAILED TO DISCLOSE ANY DISCREPANCY WHICH WOULD HAVE RESULTED IN THE OSCILLATIONS.
Flight
Event TypeAccident
Event Time15:00 EST
Nearest AirportDulles Intl (0nm N)
Runway19L
Runway Length11500 ft
Runway Width150 ft
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftSwearingen SA-226T
Tail NumberN263CM
Aircraft CategoryAir
DamageSubstantial
OperatorJohn T Rocca
Operating RulePart 91
Engines2
Engine TypeTurboprop
Engine DetailsAiresearch · TPE-331 · Turboprop · 840
Seats8
People & Injuries
Injury SummaryNo injuries (1 uninjured)
Fatal0
Serious0
Minor0
Uninjured1
Total1
Crew 1Age 46 · First Class
Conditions
ConditionsVMC
LightDaylight
Wind200° @ 9 kt
Visibility25 sm
CeilingNone
Temperature / Dew Point50 / 0 C
Altimeter0
Weather SourcePILO