NTSB Identification: SEA85LA070.
The docket is stored on NTSB microfiche number 27913.
Scheduled 14 CFR
Accident occurred Friday, March 08, 1985 in HAILEY, ID
Aircraft: FAIRCHILD SA-227AC, registration: N3115U
Injuries: 20 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.

ON LDG THE EXPERIENCED CAPTN ENCOUNTERED A RIGHT DRIFT ON THE DRY RWY WITH NEGLIGIBLE WINDS. RUDDER/PWR/NOSEWHEEL STEERING INPUTS WERE INSUFFICIENT TO REGAIN DIRECTIONAL CONTROL. RIGHT DRIFT TRANSLATED INTO A STRONG RIGHT SWERVE WITH CONTINUED APPLICATION OF FULL LEFT NOSEWHEEL STEERING AND SIMULTANEOUS BRAKING. ACFT DEPARTED RIGHT SIDE OF RWY AND NOSEWHEEL OBSERVED TRACKING STRAIGHT INTO SNOW & NO NOSEWHEEL SKID MARKS OBSERVED. TESTING REVEALED REDUCED NOSEWHEEL STEERING EFFECTIVENESS WITH DECREASING NOSE STRUT COMPRESSION DUE TO ENGAGEMENT OF CENTERING CAM. CAPTN REPORTED 'NOSE HIGH' TAXI ATTITUDE AND 'PITCH SENSITIVE' FLT. CAPTN/OTHER PLTS REPORTED DIFFICULTY ACHIEVING EQUAL BRAKING DURING CONDITIONS OF LARGE RUDDER PEDAL DISPLACEMENT. THIS CONDITION IS NOT ADDRESSED IN PLT/OPS MANUALS. CHECK OF BRAKE/NOSEWHEEL STEERING SYSTEMS REVEALED NO MECHANICAL MALFUNCTION.

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

DIRECTIONAL CONTROL..INADEQUATE..PILOT IN COMMAND



Contributing Factors

ACFT/EQUIP,INADEQUATE CONTROL LOCATION..MANUFACTURER


Contributing Factors

ACFT/EQUIP,INADEQUATE AIRCRAFT MANUALS..MANUFACTURER


Contributing Factors

LANDING GEAR,STEERING SYSTEM..INADEQUATE

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