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LAX93LA135 · Downer Aircraft Industries KR-1

23 Feb 1993 · Prescott, AZ, United States

Downer Aircraft Industries KR-1 · Accident: loss of engine power en route

From Prescott Regional Airport - Ernest A. Love Field (PRC) to Prescott Regional Airport - Ernest A. Love Field (PRC)

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Event

NTSB case
LAX93LA135
Event typeAccident: someone killed or seriously injured, or the aircraft substantially damaged (NTSB definition). Incident: an occurrence that affected or could have affected safety, short of that. Glossary
Accident
InvestigationHow far the investigation had got when the record was published: preliminary, ongoing, final or completed. Unknown where the source does not say. Glossary
Completed
API-reported fatalities
0 · all aircraft and ground
Ground fatalities
0
OperationWhat kind of flying it was, grouped by the rules it flew under: airline (US Part 121), air taxi and commuter (Part 135), general aviation (Part 91 and similar), military or government. Glossary
General aviation
WeatherVisual meteorological conditions (VMC): good enough to fly by looking outside. Instrument conditions (IMC): cloud or low visibility, flying by instruments. Glossary
Visual Meteorological Cond

Downer Aircraft Industries KR-1

Aircraft type
Downer KR-1
Category
Airplane
RegistrationThe aircraft's tail number, such as N12345 or G-ABCD. Registrations are reissued, so the same one years apart can be a different aircraft. Glossary
N9HD
Operator
Robert O. Woodward · private individual
Onboard fatalities
Unknown
Route
From Prescott Regional Airport - Ernest A. Love Field (PRC)To Prescott Regional Airport - Ernest A. Love Field (PRC)
Aircraft age
Not recorded
Flight rulesThe regulations the flight operated under: in the US, Part 91 (general aviation), Part 121 (airlines), Part 135 (air taxi and commuter) and others; for flights abroad, the NTSB's coarser commercial or non-commercial code. Glossary
Part 91: General Aviation
Phase of flightThe stage of the flight when things started to go wrong: standing, taxi, takeoff, initial climb, en route, maneuvering, approach or landing. Glossary
En route · cruise
First occurrenceThe single coded event the NTSB judges best describes what happened (records from 2008 on). Older records name the first occurrence in the sequence instead. Glossary
Loss of engine power
DamageDestroyed: beyond practical repair. Substantial: damage that affects the structure, performance or handling and normally needs major repair. Minor: less than that. Glossary
Destroyed

Cause areas

  • Reason for occurrence undetermined

Approximate · Coordinates as recorded by the NTSB; no uncertainty radius is established.

NTSB narrative

THE EXPERIMENTAL HOMEBUILT HAD ONLY BEEN OPERATED ABOUT 56 HOURS IN THE LAST 12 YEARS, WITH THE LAST FLIGHT PRIOR TO THE ACCIDENT LISTED IN THE AIRCRAFT LOG BOOK AS JUNE 16, 1992. THE PILOT MADE NO STATEMENT REGARDING THE ACCIDENT CIRCUMSTANCES. GROUND WITNESSES REPORTED HEARING AND OBSERVING THE AIRCRAFT DESCEND INTO A RESIDENTIAL AREA WITHOUT ANY APPARENT ENGINE POWER. FAA AIRWORTHINESS INSPECTORS EXAMINED THE AIRCRAFT AND REPORTED FINDING MANY DISCREPANCIES IN THE AIRCRAFT SYSTEM DESIGNS AND INSTALLATIONS. THE FUEL SYSTEM CONSISTED OF A RUBBERMAID FIVE GALLON CONTAINER CONNECTED TO THE ENGINE WITH PLASTIC TUBING AND OPERATED BY A HAND WOBBLE PUMP. THE CARBURETOR HEAT SYSTEM CONSISTED OF PVC PLUMBING PIPE HELD TOGETHER AND SECURED TO BOTH THE ENGINE EXHAUST SYSTEM AND THE CARBURETOR WITH RTV SEALANT. THE FAA INSPECTORS REPORTED THAT THE EXAMINATION OF THE REVMASTER VW ENGINE ITSELF REVEALED NO EVIDENCE OF A MECHANICAL MALFUNCTION. REVIEW OF FAA RECORDS REVEALED THAT THE PILOT'S MEDICAL HAD EXPIRED. THE PILOT HAD HELD HIS PRIVATE CERTIFICATE FOR 40 YEARS AND HAD FLOWN 290 HOURS IN THAT TIME. THE AVAILABLE PILOT AND AIRCRAFT RECORDS DISCLOSED THAT THE PILOT HAD NOT FLOWN IN THE LAST SEVEN MONTHS.

Probable cause

THE TOTAL LOSS OF ENGINE POWER FOR UNDETERMINED REASONS. A FACTOR IN THE ACCIDENT WAS THE LACK OF A SUITABLE LANDING AREA AT THE TIME OF THE POWER INTERRUPTION.

Verbatim NTSB analysis and probable cause from the NTSB dataset

Sources

NTSB record LAX93LA135
Event ID
20001211X11856
Case number
LAX93LA135
Dataset
historical-pre2008
Source SHA-256
89e2df6d848e7ab3b42e7d7c7a03ff403303057a26ca04c95b3ea67201c3ce74
Source notes (4)
  • Unreviewed is an editorial label, not an investigation status. API-sourced is not report-checked or human-reviewed. Explicit event totals are used without summing aircraft injury tables; onboard allocation is withheld. Unknown values remain unknown. The operation category is mapped from the NTSB-reported FAR part and has not been reviewed.
  • Filled from the NTSB case API where the bulk record had no value: investigation status. Values present in the bulk record are kept.
  • The date is the local date, which is the same as the UTC date the NTSB stores.
  • API snapshot SHA-256: bc066c28a4ae9c3f7e8be45ef6892e74aba0831771e3c02ada29536234a2e10e; retrieved 2026-09-21T14:32:51.271Z.