SEA85LA070

NTSB accident investigation · Fairchild SA-227AC · Hailey, ID · March 9, 1985

Accident · No injuriesLimited investigationFinal report
Date
March 8, 1985, 18:43 local (Mar 9, 1985, 01:43 UTC)
Place
Hailey, ID
Injuries
20 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N3115UFairchild SA-227AC
Weather
Visual (VMC) · Dusk
Status
Completed
Report
Approved by Office Director
FAA report
19850308007959A
Case key
40124

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

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Sequence of events

NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.

Loss of control - on ground/waterLanding - roll
Directional control - inadequatePilot in commandCause
Acft/equip,inadequate control locationManufacturerFactor
Acft/equip,inadequate aircraft manualsManufacturerFactor
Landing gear,steering system - inadequateFactor
On ground/water encounter with terrain/waterLanding - roll
Terrain condition - snowbank

Analysis

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.

Aircraft

Registration
N3115U
Reported as
Fairchild SA-227AC
Category
Airplane
Serial number
AC589
Airframe hours
904
Engine
Garrett TPE33111U611G, 1,000 horsepower, turbo prop
Damage
Substantial damage
Flight
Part 135
Operator
Horizon Airlines, Inc.
Registered owner
General Electric Credit Corp
Airworthiness certificate
Standard, Transport
Departed
SLC · Salt Lake City, UT
Destination
SUN · Hailey, ID
Flight plan
IFR
Airport
SUN · Friedman Memorial, runway 31, 6,600 × 100 ft, asphalt

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
33
Certificate
Airline transport
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 1, Valid Medical--no waivers/lim.
Seat
Left
Flight hours
4,900 total · 1,200 in this make and model

Weather

Conditions
Visual (VMC) · Dusk
Wind
300° at 5 knots
Visibility
20 statute miles
Lowest ceiling
None
Temperature
28 °F
Altimeter
30.00 inHg
Observed at
SUN

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.