DCA83AA017

NTSB accident investigation · de Havilland DHC-6-300 · Hailey, ID · February 15, 1983

Accident · Serious injuriesFinal report
Date
February 15, 1983, 11:02 local (18:02 UTC)
Place
Hailey, ID
Injuries
7 serious, 1 minor
Damage
Destroyed
Phase of flight
Approach
Aircraft
N361Vde Havilland DHC-6-300
Weather
Visual (VMC) · Day
Status
Completed
Report
Board-adopted at Board Meeting
NTSB office
Major Investigations Division
Safety recommendations
Yes
FAA report
19830215074129A
Case key
15778

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 - in flightApproach - vfr pattern - final approach
Flt control syst,elevator control - disconnectedCause
Maintenance - improperCompany maintenance personnelCause
Procedure inadequateCompany/operator managementFactor
Inadequate surveillance of operationFaa(organization)Factor
In flight collision with terrain/waterDescent - uncontrolled

Analysis

The acft was less than 2 miles from the arpt of intended landing during the approach when the crew experienced a loss ofelevator control. The acft started diving toward the ground when the power was reduced. The plt applied full power to try and restore level flt. The crew did not recall using the elevator trim to raise the acft nose. The application of power accelerated the raising of the nose which would have raised at a slower rate using only the acceleration of the dive. The capt could not reach the arpt rwy but was able to align with and land on a hiway. The nose was still down and the acft descending with the airspeed at 120 KTS when the acft contacted the hiway and cartwheeled into a snowbank alongside the road. An exam of the elevator control revealed a push-pull rod had become disconnected from an elevator torque tube. The control had been disconnected when the acft was painted in 12/81 & was reconnected with a nonstandard, unsecured bolt. Maint records were sketchy as to the procedures during this maint. FAA surveillance did'nt detect prblm.

Aircraft

Registration
N361V
Reported as
de Havilland DHC-6-300
Category
Airplane
Serial number
361
Airframe hours
4,767
Engine
P&W PT6A-27, 652 horsepower, turbo prop
Damage
Destroyed
Flight
Part 135
Registered owner
Sierra Pacific Airlines
Airworthiness certificate
Standard, Normal
Last inspection
Continuous airworthiness · February 5, 1983 · 28 hours before
Departed
BOI · Boise, ID
Destination
SUN
Airport
Friedman Memoriel, runway 31, 6,600 × 100 ft

Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
39
Certificates
Airline transport, Commercial
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 1, Valid Medical--no waivers/lim.
Seat
Left
Flight hours
12,000 total · 1,000 in this make and model · 164 in the last 90 days · 73 in the last 30 days · 3 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
350° at 5 knots
Visibility
20 statute miles
Lowest ceiling
None
Temperature
25 °F
Altimeter
30.00 inHg

FAA reports on this event · 1

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