SEA87LA020

NTSB accident investigation · Cessna 414A · Murtaugh, ID · December 7, 1986

Accident · Serious injuriesLimited investigationFinal report
Date
December 6, 1986, 19:00 local (Dec 7, 1986, 02:00 UTC)
Place
Murtaugh, ID
Injuries
2 serious, 1 uninjured
Damage
Destroyed
Phase of flight
Approach
Aircraft
N37561Cessna 414A
Weather
Instrument (IMC) · Night/dark
Status
Completed
Report
Approved by Office Director
FAA report
19861206064699A
Case key
40562

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.

In flight collision with terrain/waterApproach - iaf to faf/outer marker (ifr)
Reason for occurrence undeterminedCause
Descent - prematurePilot in commandCause
Light condition - dark nightFactor
Weather condition - fogFactor
Weather condition - low ceilingFactor

Analysis

During the transition from a DME arc to the ILS final apch course, the plt allowed the acft to prematurely descend into the ground. The reason for the descent could not be determined. However, no pre-impact mechanical malfunction with the acft was found nor was there any evidence supporting plt incapacitation. Dark night conditions in fog and low ceilings prevailed during the apch.

Aircraft

Registration
N37561
Reported as
Cessna 414A
Category
Airplane
Serial number
414A0007
Airframe hours
1,487
Engine
Continental TSIO-520-N, 310 horsepower, reciprocating
Damage
Destroyed
Flight
Personal · Part 91
Registered owner
Paul C. Van Alstyne
Airworthiness certificate
Standard, Normal
Last inspection
Annual · December 19, 1985 · 120 hours before
Departed
VNY · Van Nuys, CA
Destination
SUN · Sun Valley, ID
Flight plan
IFR
Airport
TWF · Joslin Field, runway 25, 8,703 × 150 ft, asphalt

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
56
Certificate
Airline transport
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
3,680 total · 618 in this make and model · 3,000 as pilot in command · 56 in the last 90 days · 4 in the last 24 hours

Weather

Conditions
Instrument (IMC) · Night/dark
Wind
240° at 5 knots
Visibility
4 statute miles
Lowest ceiling
400 ft overcast
Temperature
32 °F, dew point 30 °F
Altimeter
30.00 inHg
Observed at
TWF, 11 nm away

FAA reports on this event · 1

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