# NTSB LAX88DVG07: Snow AT-301, N5224S, Davis, CA, July 2, 1988

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Final report
- Date: July 2, 1988, 14:50 local (21:50 UTC)
- Place: Davis, CA
- Coordinates: 38.550247, -121.799598 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=38.5502&lon=-121.7996&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report December 29, 1989
- Report: Approved by Office Director
- NTSB case key (mKey): 25769
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX88DVG07
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/25769/pdf
- Page: https://openairdocs.org/ntsb/LAX88DVG07

## Sequence of events

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

- Loss of engine power(total) - mech failure/malf, cruise - normal
  - engine assembly,cylinder - separation (cause)
- Forced landing, descent - emergency
- On ground/water collision with object, landing - roll
  - terrain condition - high obstruction(s) (contributing factor)

## Analysis

AT THE END OF AN AERIAL APPLICATION FLIGHT, EN ROUTE TO HOME BASE, THE ENGINE QUIT. THE PILOT MADE AN EMERGENCY LANDING IN A FIELD, WHERE DURING THE LANDING ROLL THE AIRPLANE COLLIDED WITH A BALE OF HAY AND NOSED OVER. INSPECTION OF THE ENGINE REVEALED THAT THE NUMBER FIVE CYLINDER SKIRT HAD BROKEN OFF.

## Aircraft

- Registration: [N5224S](https://openairdocs.org/deregistered/N5224S-2013-06-17), registration cancelled 2013-06-17, S/N 301-0125 (OpenAirDocs)
- Reported make and model: SNOW AT-301
- Registry model: [Air Tractor AT-301](https://openairdocs.org/model/air-tractor-at-301) (registry code 0390103) (OpenAirDocs)
- Registry engine: [Pratt & Whitney R1340 series](https://openairdocs.org/engine/pratt-whitney-r1340-series) (registry code 52016, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 301-0125
- Engines: P&W R-1340-AN1 600 horsepower reciprocating
- Damage: Substantial damage
- Flight: Aerial application, Part 137
- Operator: Watts Arigucltural Ave., doing business as Grower'S Air Service
- Registered owner: Medlock Dusters
- Airworthiness certificate: Special, Restricted (Special)
- Last inspection: 100 hour, June 2, 1988, 49 hours before
- Departed: DAVIS, CA
- Destination: WOODLAND, CA

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 66; commercial, flight instructor, airline transport; airplane ratings: single-engine land, multi-engine sea, multi-engine land; instrument ratings: airplane; medical: class 2, valid medical--w/ waivers/lim; seat: front; flight hours: 31,700 total, 31,460 as pilot in command, 215 in the last 90 days, 98 in the last 30 days, 11 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Visibility: 30 statute miles
- Lowest ceiling: none
- Temperature: 100 °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 19880702025109A](https://openairdocs.org/incident/19880702025109A), Jul 2, 1988: Airtrc AT301, Davis, CA, Substantial damage. Engine quit on climbout. Nosed over landing. Cylinder skirt broke. Large low RPM prop and chrome cyl are factors.

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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