# NTSB SEA91LA153: Derego Avid Flyer/B, N220B, Myrtle Creek, OR, July 4, 1991

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Limited investigation · Final report
- Date: July 4, 1991, 16:00 local (23:00 UTC)
- Place: Myrtle Creek, OR
- Coordinates: 43.049495, -123.200477 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=43.0495&lon=-123.2005&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 2 minor
- Status: Completed, report March 31, 1993
- Report: Approved by Office Director
- NTSB case key (mKey): 41468
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA91LA153
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/41468/pdf
- Page: https://openairdocs.org/ntsb/SEA91LA153

## Probable cause

LOSS OF ENGINE POWER FOR AN UNDETERMINED REASON.

## Sequence of events

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

- Loss of engine power(partial) - nonmechanical, takeoff - initial climb
  - reason for occurrence undetermined, pilot in command (cause)
- Forced landing, descent - emergency
- In flight collision with object, descent - emergency
  - object - wire,transmission
- Nose over, landing - roll

## Analysis

SHORTLY AFTER TAKEOFF, THE ENGINE LOST PARTIAL POWER.  THE PILOT ATTEMPTED TO RETURN TO THE AIRPORT; HOWEVER, THE AIRPLANE WAS UNABLE TO MAINTAIN ALTITUDE.  AN OFF AIRPORT LANDING WAS INITIATED TO AN OPEN FIELD. DURING THE DESCENT, THE AIRPLANE COLLIDED WITH POWER LINES.  DURING THE LANDING ROLL, THE AIRPLANE NOSED OVER.  POST CRASH INSPECTION OF THE ENGINE DID NOT REVEAL ANY MECHANICAL FAILURES OR MALFUNCTIONS.  THE ELECTRICAL SYSTEM WAS DAMAGED AND TESTING WAS NOT POSSIBLE.

## Aircraft

- Registration: [N220B](https://openairdocs.org/deregistered/N220B-2017-06-30), registration cancelled 2017-06-30, S/N 256, built 1988 (OpenAirDocs)
- Reported make and model: DEREGO AVID FLYER/B (AVID FLYER)
- Registry model: [Derego Charles A AVID FLYER](https://openairdocs.org/model/derego-charles-a-avid-flyer) (registry code 05613HF) (OpenAirDocs)
- Registry engine: [Bombardier ROTAX (ALL)](https://openairdocs.org/engine/bombardier-rotax-all) (registry code 09050, reciprocating) (OpenAirDocs)
- Category: Airplane, amateur-built
- Serial number: 0265
- Engines: ROTAX 532 L/C 64 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: Charles A. Derego
- Registered owner: Charles A. Derego
- Airport: 16S, Tri-City State, runway 3, 2,600 × 50 ft

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 44; commercial, flight engineer, airline transport; airplane ratings: multi-engine land, single-engine land, single-engine sea; instrument ratings: airplane; medical: class 1, valid medical--no waivers/lim.; flight hours: 7,780 total, 435 in this make and model, 4,990 as pilot in command, 84 in the last 90 days, 14 in the last 30 days, 1 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 270° at 15 knots, gusting 20
- Visibility: 10 statute miles
- Lowest ceiling: none
- Temperature: 81 °F, dew point -0 °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 19910704025809A](https://openairdocs.org/incident/19910704025809A), Jul 4, 1991: Amtr AVIDFLYER, Myrtle Creek, OR, Substantial damage. Engine misfiring on climbout. Hit wires and flipped on landing.2 cylinder single ignition spark plug insulator broke

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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