DEN88FA061

NTSB accident investigation · Convair 580 · Durango, CO · February 3, 1988

Accident · Minor injuriesField investigationFinal report
Date
February 2, 1988, 20:32 local (Feb 3, 1988, 03:32 UTC)
Place
Durango, CO
Injuries
2 minor, 2 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N5808Convair 580
Weather
Instrument (IMC) · Night/dark
Status
Completed · report April 25, 1989
Report
Approved by Office Director
FAA report
19880202070689A
Case key
17349

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.

On ground/water collision with objectLanding - roll
Airport facilities,runway marking - foreign substance coveredFactor
Airport snow removal - inadequateAirport personnelCause
Airport facilities,runway/landing area condition - snow coveredFactor
Airport facilities,runway/landing area condition - slush coveredFactor
Proper alignment - not maintainedPilot in commandCause
Terrain condition - snowbank
Airport facilities,centerline lights - unavailableFactor
Airport facilities,runway edge lights - unapprovedFactor
Light condition - dark nightFactor

Analysis

After making an IFR approach, the pilot made a go-around because he was blinded by the reflection of the landing/taxi lights against the falling snow. The pilot landed the aircraft after the second approach. The pilot said he sensed the aircraft drifting to the left and he tried to correct, but it collided with a snow bank. The investigation disclosed no evidence of aircraft hydroplaning or skidding. Airport management elected to delay plowing the runway for fear of it freezing over. Passengers claimed there was 2-3 inches of snow on top of a 3/4- inch layer of slush. Further investigation revealed that the runway lights were of various intensities because some unapproved light bulbs of different amperage were used. The runway was not equipped with centerline lighting. The painted white centerline stripe was covered by snow and slush.

Aircraft

Registration
N5808
Reported as
Convair 580
Category
Airplane
Serial number
348
Airframe hours
53,781
Engine
Allison 501D-13-H, 3,750 horsepower, turbo prop
Damage
Substantial damage
Flight
Part 121
Registered owner
Aspen Airways, Inc.
Airworthiness certificate
Standard, Transport
Last inspection
Continuous airworthiness · January 23, 1988 · 66 hours before
Departed
DEN · Denver, CO
Destination
DRO · Durango, CO
Flight plan
IFR
Airport
DRO · La Plata County, runway 2, 9,200 × 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
41
Certificate
Airline transport
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 1, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
7,342 total · 2,858 in this make and model · 4,211 as pilot in command · 221 in the last 90 days · 98 in the last 30 days · 2 in the last 24 hours

Weather

Conditions
Instrument (IMC) · Night/dark
Wind
Calm
Visibility
5 statute miles
Lowest ceiling
500 ft
Temperature
34 °F
Altimeter
29.00 inHg
Observed at
DRO

FAA reports on this event · 1

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