# NTSB SEA92LA108: Cessna A188A, N9990G, Redmond, OR, May 21, 1992

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: May 21, 1992, 07:30 local (14:30 UTC)
- Place: Redmond, OR
- Coordinates: 44.260829, -121.219352 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=44.2608&lon=-121.2194&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report March 24, 1993
- Report: Approved by Office Director
- NTSB case key (mKey): 41683
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA92LA108
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/41683/pdf
- Page: https://openairdocs.org/ntsb/SEA92LA108

## Probable cause

PROPER CLEARANCE FROM OBJECTS WAS NOT MAINTAINED.  FACTORS TO THE ACCIDENT WERE: SUNGLARE, WIRES, AND VISUAL LOOKOUT WAS NOT POSSIBLE.

## Sequence of events

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

- In flight collision with object, maneuvering - aerial application
  - light condition - sunglare (contributing factor)
  - visual lookout - not possible, pilot in command (contributing factor)
  - object - wire,static (contributing factor)
  - clearance - not maintained, pilot in command (cause)

## Analysis

DURING AN AERIAL APPLICATION FLIGHT, THE AIRPLANE WAS TRAVELLING IN AN EASTERLY DIRECTION FOR THE SPRAY RUN WHEN THE SUN MOMENTARILY BLINDED THE PILOT AND THE AIRPLANE COLLIDED WITH POWER LINES. THE PILOT THEN INITIATED A FORCED LANDING IN AN ADJACENT FIELD.

## Aircraft

- Registration: [N9990G](https://openairdocs.org/deregistered/N9990G-2018-01-19), registration cancelled 2018-01-19, S/N 18800790, built 1971 (OpenAirDocs)
- Reported make and model: CESSNA A188A
- Registry model: [Cessna A188A](https://openairdocs.org/model/cessna-a188a) (registry code 2073008) (OpenAirDocs)
- Registry engine: [Continental IO-520 series](https://openairdocs.org/engine/continental-io-520-series) (registry code 17032, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 18800790
- Engines: Continental IO-520-D 300 horsepower reciprocating
- Damage: Substantial damage
- Flight: Aerial application, Part 137
- Operator: Boyd W. Simmons
- Registered owner: Boyd W. Simmons
- Airworthiness certificate: Special, Restricted (Special)
- Last inspection: Annual, January 2, 2000, 100 hours before
- Departed: S39, PRINEVILLE, OR

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 50; commercial; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 2, valid medical--w/ waivers/lim; seat: center; flight hours: 4,500 total

## Weather

- Conditions: Visual (VMC), Day
- Wind: calm
- Visibility: 30 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 19920521015599A](https://openairdocs.org/incident/19920521015599A), May 21, 1992: Cessna A188A, Redmond, OR, Substantial damage. Blinded by rising sun on spray run collided with power lines. Landed in adjactent field.

## Other investigations on N9990G (1)

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.

- [NTSB SEA80FYM33](https://openairdocs.org/ntsb/SEA80FYM33), May 11, 1980: Cessna A188A (N9990G), Gresham, OR, substantial damage

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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