DCA85AA012

NTSB accident investigation · Beech 65-A80 · Soldotna, AK · February 4, 1985

Accident · FatalFinal report
Date
February 4, 1985, 19:51 local (23:51 UTC)
Place
Soldotna, AK
Injuries
9 fatal
Damage
Destroyed
Phase of flight
Approach
Aircraft
N50NPBeech 65-A80
Weather
Instrument (IMC) · Night/dark
Status
Completed
Report
Approved by Office Director
NTSB office
Major Investigations Division
Safety recommendations
Yes
FAA report
19850204005919A
Case key
15828

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 encounter with weatherApproach
Anti-ice/deice system - inadequateFactor
Maintenance - inadequateCompany maintenance personnelFactor
Inadequate surveillance of operationFaa(organization)Factor
Operation with known deficiencies in equipment - performedPilot in commandFactor
Other airport/runway maintenance - not maintainedCompany/operator managementFactor
Inadequate surveillance of operationFaa(organization)Factor
Meteorological service - inadequateCompany/operator managementFactor
Inadequate surveillance of operationFaa(organization)Factor
Weather condition - low ceilingFactor
Weather condition - fogFactor
Weather condition - rainFactor
Weather condition - icing conditionsFactor
Flight into known adverse weather - performedPilot in commandFactor
Wing - iceFactor
Weather condition - below approach/landing minimumsFactor
Missed approach - initiatedPilot in command
Not performedPilot in commandFactor
In flight collision with objectCircling (ifr)
In-flight planning/decision - improperPilot in commandCause
Missed approach - improperPilot in commandCause
Terrain condition - high terrainFactor
Minimum descent altitude - not maintainedPilot in commandCause
Object - tree(s)Factor

Analysis

During arrival, the crew of npa flt 1802 contacted the company wx observer at Soldotna who advised the wx was: wnd calm,ceiling 600 to 800 ft, vis 8 to 10 mi, no precip. They made an NDB apch, but missed the apch & requested another apch. Aprx 1 min later, the crew reported the acft had accumulated a hvy load of ice. They could have diverted nearby to kenaifor an ILS apch, but elected to make a VOR apch back to Soldotna. While being vectored, they made 2 more checks with thewx observer who advised the wx had deteriorated to below mins & recommended diverting, but the crew did not acknowledge. Subsequently, the acft collided with trees on hi terrain aprx 1.5 mi se of the arpt. There was evidence the acft was circling when it crashed. Circling was not authorized south of rwy 7/25. Inv revealed recurring prblms with the anti-icesys, its 'single' mode was inop, 2 de-ice boots were missing fm prop blades. Wx station listed only 1 lgtd marker (1/4 mi away) for vis ref; min lndg vis was 1 mi; ceilometer was inop. No FAA inspn of wx station in 2 yrs. Icg forcasted.

Aircraft

Registration
N50NP
Reported as
Beech 65-A80
Category
Airplane
Serial number
LD231
Airframe hours
12,106
Engine
Lycoming IO-720-A1B, 400 horsepower, reciprocating
Damage
Destroyed
Fire
On-Ground
Flight
Part 135
Operator
North Pacific Airlines
Registered owner
North Pacific Airlines
Airworthiness certificate
Standard, Normal
Last inspection
AAIP · January 26, 1985 · 92 hours before
Departed
ANC · Anchorage, AK
Destination
SXQ
Flight plan
IFR
Airport
SXQ · Soldotna, runway 25, 4,973 × 130 ft, macadam

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
37
Certificate
Airline transport
Airplane ratings
Single-engine land, Single-engine sea, Multi-engine land
Instrument ratings
Airplane
Medical
Class 1, Valid Medical--no waivers/lim.
Seat
Left
Toxicology
Performed
Flight hours
7,288 total · 2,985 in this make and model · 6,150 as pilot in command · 255 in the last 90 days · 96 in the last 30 days · 7 in the last 24 hours

Weather

Conditions
Instrument (IMC) · Night/dark
Wind
30° at 5 knots
Lowest ceiling
300 ft overcast
Temperature
27 °F, dew point 25 °F
Altimeter
30.00 inHg
Observed at
ENA, 9 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.