# NTSB SEA92LA066: Avid Mark IV, N582MK, Soldier Summit, UT, April 1, 1992

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: April 1, 1992, 14:00 local (21:00 UTC)
- Place: Soldier Summit, UT
- Coordinates: 40.220623, -111.689613 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=40.2206&lon=-111.6896&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report September 29, 1993
- Report: Approved by Office Director
- NTSB case key (mKey): 41647
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA92LA066
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/41647/pdf
- Page: https://openairdocs.org/ntsb/SEA92LA066

## Probable cause

THE FUEL PUMP DELIVERING TOO LOW FUEL PRESSURE.  A FACTOR CONTRIBUTING TO THE ACCIDENT WAS THE SNOW COVERED TERRAIN.

## Sequence of events

In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf).

- Loss of engine power(total) - mech failure/malf, cruise
  - fuel system,pump - pressure too low (cause)
  - fluid,fuel - starvation
- Forced landing, descent - emergency
- Nose over, landing - roll
  - terrain condition - snow covered (contributing factor)
  - aircraft control - not possible, pilot in command

## Analysis

ONE OF 3 AVID AIRCRAFT MARK IV'S IN A CROSS COUNTRY FLIGHT ENCOUNTERED A TOTAL POWER LOSS WHILE CRUISING AT 8500 FEET MSL.  THE PILOT WAS UNABLE TO RESTART THE ENGINE AND EXECUTED A FORCED LANDING ON SNOW COVERED TERRAIN DURING WHICH THE AIRCRAFT NOSED OVER.  THE AIRCRAFT HAD SUSTAINED A SIMILAR POWER LOSS ON THE PREVIOUS DAY'S FLIGHT AND THE ENGINE DRIVEN PULSE TYPE FUEL PUMP HAD BEEN REPLACED 147 HOURS PREVIOUS IN ANOTHER POWER LOSS OCCURRENCE.  THE PILOT REPORTED THAT INSUFFICIENT FUEL PUMP PRESSURE RESULTED IN FUEL STARVATION AND THE SUBSEQUENT POWER LOSS.

## Aircraft

- Registration: [N582MK](https://openairdocs.org/deregistered/N582MK-1997-01-23), registration cancelled 1997-01-23, S/N 1000 (OpenAirDocs)
- Reported make and model: AVID AIRCRAFT MARK IV
- Registry model: [Riordan James F MARK IV](https://openairdocs.org/model/riordan-james-f-mark-iv) (registry code 05618P1) (OpenAirDocs)
- Category: Airplane, amateur-built
- Serial number: 01000
- Airframe hours: 147
- Engines: ROTAX 582LC 65 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: Avid Aircraft, Inc.
- Registered owner: Avid Aircraft, Inc.
- Airworthiness certificate: Special, Experimental (Special)
- Last inspection: Annual, September 5, 1991, 147 hours before
- Departed: ENV, WENDOVER, UT
- Destination: PUC, PRICE, UT

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 32; private; airplane ratings: single-engine land, multi-engine land; medical: class 3, valid medical--no waivers/lim.; seat: left; flight hours: 428 total, 379 in this make and model, 428 as pilot in command, 37 in the last 90 days, 9 in the last 30 days, 4 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 270° at 5 knots
- Visibility: 99 statute miles
- Lowest ceiling: none
- Temperature: 50 °F

## FAA reports on this event (1)

The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs).

- [Accident 19920401008269A](https://openairdocs.org/incident/19920401008269A), Apr 1, 1992: Amtr AVIDFLYER, Soldier Summit, UT, Substantial damage. Lost power en route. Nosed over landing in deep snow. Had prior problem. Fuel pump replaced 147 hrs ago. Quit again

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

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