# NTSB SEA90LA038: Piper PA-22, N8898C, Boring, OR, February 4, 1990

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: February 4, 1990, 11:15 local (19:15 UTC)
- Place: Boring, OR
- Coordinates: 45.41925, -122.370063 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=45.4192&lon=-122.3701&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 30, 1991
- Report: Approved by Office Director
- NTSB case key (mKey): 41165
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA90LA038
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/41165/pdf
- Page: https://openairdocs.org/ntsb/SEA90LA038

## Probable cause

CARBURETOR ICING, AND THE PILOT'S IMPROPER USE OF CARBURETOR HEAT.   FACTORS RELATED TO THE ACCIDENT WERE:  CARBURETOR ICING CONDITIONS AND THE SOFT/UNEVEN TERRAIN IN THE EMERGENCY LANDING AREA.

## Sequence of events

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

- Loss of engine power(total) - nonmechanical, cruise - normal
  - weather condition - carburetor icing conditions (contributing factor)
  - fuel system,carburetor - ice (cause)
  - carburetor heat - improper use of, pilot in command (cause)
- Forced landing, descent - emergency
- Nose over, landing - roll
  - terrain condition - soft (contributing factor)
  - terrain condition - rough/uneven (contributing factor)

## Analysis

WHILE EN ROUTE ON A X-COUNTRY FLT, THE ENG SUDDENLY LOST POWER. THE PLT INITIATED A FORCED LANDING IN A PLOWED FIELD, BUT THE ACFT ENCOUNTERED A RUT & NOSED OVER.  IT WAS REMOVED TO A FACILITY FOR AN INSPN OF THE ENG & PREPARATION FOR A TEST RUN. THE ENG WAS STARTED & WAS OPERD FOR SVRL MIN AT VARYING POWER SETTINGS WITH NO ABNORMALITIES NOTED.  THE TEMP & DEW POINT WERE 44 & 32 DEG, RESPECTIVELY.  ACCORDING TO CARB ICING CHARTS, CONDITIONS WERE CONDUCIVE FOR CARB ICING.

## Aircraft

- Registration: [N8898C](https://openairdocs.org/deregistered/N8898C-2014-11-20), registration cancelled 2014-11-20, S/N 22-1477, built 1953 (OpenAirDocs)
- Reported make and model: PIPER PA-22
- Registry model: [Piper PA-22](https://openairdocs.org/model/piper-pa-22) (registry code 7102202) (OpenAirDocs)
- Registry engine: [Lycoming 0-290 series](https://openairdocs.org/engine/lycoming-0-290-series) (registry code 41506, 4 cycle) (OpenAirDocs)
- Category: Airplane
- Serial number: 22-1477
- Airframe hours: 3220
- Engines: LYCOMING O-290-D2 135 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: Ronald Hargraves
- Registered owner: Hargraves, Ronald W
- Airworthiness certificate: Standard, Normal
- Departed: PSC, PASCO, WA
- Destination: 388, GRANTS PASS, OR
- Flight plan: VFR

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 37; commercial; airplane ratings: single-engine land; instrument ratings: airplane; medical: class 3, valid medical--no waivers/lim.; seat: left; flight hours: 1,100 total, 4 in this make and model, 700 as pilot in command, 16 in the last 90 days, 8 in the last 30 days

## Weather

- Conditions: Visual (VMC), Day
- Wind: calm
- Visibility: 20 statute miles
- Lowest ceiling: 4,000 ft broken
- Temperature: 45 °F
- Altimeter: 30.00 inHg
- Observed at: TTD, 8 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 19900204001579A](https://openairdocs.org/incident/19900204001579A), Feb 4, 1990: Piper PA22, Boring, OR, Substantial damage. Engine quit en route. Landed in a plowed field and nosed over. Carburetor icing conditions existed.

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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