# NTSB MKC90LA036: Burdette Cuby PA-11, N99615, Ashland, KS, November 22, 1989

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: November 22, 1989, 17:30 local (23:30 UTC)
- Place: Ashland, KS
- Coordinates: 37.180065, -99.759315 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=37.1801&lon=-99.7593&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report September 5, 1990
- Report: Approved by Office Director
- NTSB case key (mKey): 34917
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MKC90LA036
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/34917/pdf
- Page: https://openairdocs.org/ntsb/MKC90LA036

## Probable cause

AN UNDETERMINED PROBLEM WITH THE FUEL SYSTEM, WHICH RESULTED IN A LOSS OF ENGINE POWER, AND OPERATION OF THE AIRCRAFT BY THE PILOT WITH THE KNOWN DEFICIENCY.  THE UNEVEN (TERRACED) TERRAIN WAS A CONTRIBUTING FACTOR.

## Sequence of events

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

- Loss of engine power, cruise
  - fuel system - undetermined (cause)
  - operation with known deficiencies in equipment - performed, pilot in command (cause)
- Forced landing, descent - emergency
- In flight collision with terrain/water, landing
  - terrain condition - rough/uneven (contributing factor)

## Analysis

AS THE PLT OF THE HOME-BUILT ACFT WAS RTRNG TO THE ARPT FROM A LOCAL FLT, THE ENG LOST POWER. SUBSEQUENTLY, THE ACFT WAS DAMAGED DURING AN EMERGENCY LANDING ON A TERRACED WHEAT FIELD SHORT OF THE ARPT. NO PREIMPACT PART FAILURE OR MALFUNCTION OF THE ACFT OR ENG WAS FOUND DURING THE INVESTIGATION. CONDITIONS WERE NOT CONDUCIVE TO CARB ICING. THE PLT RPRTD THE ACFT HAD A HISTORY OF FUEL FLOW PROBLEMS; HE BELIEVED THIS MAY HAVE BEEN RELATED TO THE OCCURRENCE.

## Aircraft

- Registration: [N99615](https://openairdocs.org/aircraft/N99615), registered now, S/N HCB-2, built 1978 (OpenAirDocs)
- Reported make and model: BURDETTE CUBY PA-11
- Registry model: [Burdette CUBY PA-11](https://openairdocs.org/model/burdette-cuby-pa-11) (registry code 05655E5) (OpenAirDocs)
- Registry engine: [Continental C85 series](https://openairdocs.org/engine/continental-c85-series) (registry code 17008, reciprocating) (OpenAirDocs)
- Category: Airplane, amateur-built
- Serial number: HCB-2
- Airframe hours: 769
- Engines: CONTINENTAL O-200-A 100 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: Krier, Marc A.
- Registered owner: Krier, Marc A
- Last inspection: Annual, September 22, 1989, 39 hours before
- Departed: K58, ASHLAND, KS

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 30; private; airplane ratings: single-engine land; medical: class 3, valid medical--no waivers/lim.; seat: rear; flight hours: 148 total, 115 in this make and model, 30 in the last 90 days, 20 in the last 30 days, 1 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Dusk
- Wind: 10° at 6 knots
- Visibility: 20 statute miles
- Lowest ceiling: none
- Temperature: 28 °F, dew point 9 °F
- Altimeter: 30.00 inHg
- Observed at: DDC, 40 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 (OpenAirDocs).

- [Accident 19891122055079A](https://openairdocs.org/incident/19891122055079A), Nov 22, 1989: Amtr CUBY, Ashland, KS, Substantial damage. Crash landed in a terraced wheat field when engine quit. Pilot reported aircraft had prior fuel flow problem.

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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