# NTSB SEA86LA223: Ayres S2R-600, N4077X, Caldwell, ID, August 24, 1986

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: August 24, 1986, 10:00 local (16:00 UTC)
- Place: Caldwell, ID
- Coordinates: 43.660755, -116.629554 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=43.6608&lon=-116.6296&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 40485
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA86LA223
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/40485/pdf
- Page: https://openairdocs.org/ntsb/SEA86LA223

## Sequence of events

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

- Dragged wing,rotor,pod,float or tail/skid, maneuvering - aerial application
  - altitude - misjudged, pilot in command (cause)

## Analysis

DURING AN AERIAL APPLICATION FLIGHT, THE PLT ENTERED A RIGHT TURN DURING A 'BORDER PASS.'  WHILE IN THE RIGHT TURN, THE RIGHT WING STRUCK THE GROUND AND THE AIRCRAFT CARTWHEELED & CRASHED.

## Aircraft

- Registration: N4077X (not matched to a registry record)
- Reported make and model: AYRES S2R-600
- Category: Airplane
- Serial number: 1916R
- Airframe hours: 3200
- Engines: P&W R-1340-AN2 600 horsepower reciprocating
- Damage: Substantial damage
- Flight: Aerial application, Part 137
- Registered owner: Idaho First National Bank
- Airworthiness certificate: Special, Restricted (Special)
- Last inspection: Annual, June 1, 1986
- Departed: U35, CALDWELL, ID

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 34; commercial; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: class 2, valid medical--no waivers/lim.; seat: center; flight hours: 8,200 total, 2,000 in this make and model, 455 in the last 90 days, 5 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: calm
- Visibility: 60 statute miles
- Temperature: 70 °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 19860824041909A](https://openairdocs.org/incident/19860824041909A), Aug 24, 1986: Ayres S2RR1340REST, Caldwell, ID, Substantial damage. The wingtip struck the ground and the aircraft cartwheeled during agricultural spraying operations.

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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