NTSB Identification: LAX86LA305.
The docket is stored on NTSB microfiche number 32150.
Accident occurred Sunday, July 27, 1986 in GRASS VALLEY, CA
Aircraft: NAVION A, registration: N111T
Injuries: 4 Uninjured.

NTSB investigators may not have traveled in support of this investigation and used data provided by various sources to prepare this aircraft accident report.

A NAVION A LANDED HARD ON RWY 01 AFTER AN ATTEMPTED GO-AROUND. THE PLT INDICATED THAT HE WAS LANDING TO THE NORTH WITH FULL FLAPS AND DISCOVERED HE HAD A GUSTING TAILWIND. HE INITIATED A GO-AROUND AND AT 50 FT AGL HE BROUGHT THE FLAPS UP HALFWAY. THE ACFT SETTLED AND LANDED HARD ON THE RWY. THE WINDS WERE REPORTED FROM 150 DEG AT 10 KTS 24 NM WEST ARPT. THE FLIGHT TRAINING HANDBOOK, ADVISORY CIRCULAR 61-21A, CAUTIONS PLTS ABOUT THE PREMATURE RETRACTION OF FLAPS DURING A GO-AROUND. IT STATES, 'CAUTION MUST BE USED IN RETRACTING THE FLAPS. DEPENDING ON THE AIRPLANE'S ALTITUDE AND AIR SPEED, IT MAY BE WISE TO RETRACT THE FLAPS INTERMITTENTLY IN SAMLL INCREMENTS TO ALLOW TIME FOR THE AIRPLANE TO ACCELERATE PROGRESSIVELY AS THEY ARE BEING RAISED. A SUDDEN AND COMPLETE RETRACTION OF THE FLAPS AT A VERY LOW AIRSPEED COULD CAUSE A LOSS OF LIFT RESULTING IN THE AIRPLANE SETTLING INTO THE GROUND.'

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

RAISING OF FLAPS..PREMATURE..PILOT IN COMMAND

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

DESCENT..NOT CORRECTED..PILOT IN COMMAND

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

AIRSPEED..NOT ATTAINED..PILOT IN COMMAND

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

STALL/MUSH..PERFORMED..PILOT IN COMMAND


Contributing Factors

WEATHER CONDITION..TAILWIND


Contributing Factors

WEATHER EVALUATION..POOR..PILOT IN COMMAND

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