# NTSB MKC88DPG02: Snow 600-S2C, N1671S, Almyra, AR, July 30, 1988 - Type: NTSB accident investigation - Classification: Accident · Fatal · Final report - Date: July 29, 1988, 19:00 local (Jul 30, 1988, 00:00 UTC) - Place: Almyra, AR - Coordinates: 34.400302, -91.411003 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=34.4003&lon=-91.4110&mi=10 - Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping) - Highest injury: Fatal - Injuries: 2 fatal - Status: Completed, report July 21, 1989 - Report: Approved by Office Director - NTSB case key (mKey): 34464 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MKC88DPG02 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/34464/pdf - Page: https://openairdocs.org/ntsb/MKC88DPG02 ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - Midair collision, maneuvering - preflight planning/preparation - inadequate, pilot in command (cause) - visual lookout - inadequate, pilot in command (cause) - visual lookout - inadequate, pilot of other aircraft (cause) - communications - poor, pilot in command (contributing factor) - In flight collision with terrain/water, descent - uncontrolled - Midair collision, maneuvering - preflight planning/preparation - inadequate, pilot in command (cause) - visual lookout - inadequate, pilot in command (cause) - visual lookout - inadequate, pilot of other aircraft (cause) - communications - poor, pilot in command (contributing factor) - In flight collision with terrain/water, descent - uncontrolled ## Analysis (aircraft 2) TWO AG AIRCRAFT WERE SPRAYING THE SAME FIELD. ACCORDING TO SEVERAL WITNESSES, 1671S WAS HEADING SOUTH AND 3660X WAS HEADING EAST. BOTH AIRCRAFT WERE ACTIVELY ENGAGED IN THE SPRAYING OPERATION BUT DID NOT SEEM TO THE WITNESSES TO BE COORDINATING WITH EACH OTHER. 3660X HAD STARTED A LEFT TURN TO A NORTHERLY DIRECTION WHEN 1671S PULLED UP AND COLLIDED WITH 3660X. BOTH AIRCRAFT IMPACTED THE TERRAIN IMMEDIATELY AFTER THE COLLISION. ## Aircraft 1 - Registration: [N1671S](https://openairdocs.org/deregistered/N1671S-1997-02-19), registration cancelled 1997-02-19, S/N 6001246C (OpenAirDocs) - Reported make and model: SNOW 600-S2C - Registry model: [Snow 600-S2C](https://openairdocs.org/model/snow-600-s2c) (registry code 8380302) (OpenAirDocs) - Category: Airplane - Serial number: 1246C - Airframe hours: 6200 - Engines: P&W R-1340-AN1 600 horsepower reciprocating - Damage: Destroyed - Flight: Aerial application, Part 137 - Operator: James R. Perry, doing business as Grand Prairie Flying Service - Registered owner: Grand Prairie Flying Service - Airworthiness certificate: Special, Restricted (Special) - Last inspection: Annual, January 14, 1988, 90 hours before ## Aircraft 2 - Registration: [N3660X](https://openairdocs.org/deregistered/N3660X-2012-10-09), registration cancelled 2012-10-09, S/N 1889R, built 1974 (OpenAirDocs) - Reported make and model: ROCKWELL S2R-600 - Registry model: [Aero Commander S2R](https://openairdocs.org/model/aero-commander-s2r) (registry code 0143022) (OpenAirDocs) - Registry engine: [Pratt & Whitney R1340 series](https://openairdocs.org/engine/pratt-whitney-r1340-series) (registry code 52016, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: 1320 - Airframe hours: 5250 - Engines: P&W R-1340-AN1 600 horsepower reciprocating - Damage: Destroyed - Flight: Aerial application, Part 137 - Operator: James R. Perry, doing business as Grand Prairie Flying Service - Registered owner: Grand Prairie Flying Service - Airworthiness certificate: Special, Restricted (Special) - Last inspection: Annual, January 18, 1988, 115 hours before ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot, aircraft N1671S; age 35; commercial, flight instructor; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: class 2, valid medical--no waivers/lim.; seat: center; toxicology performed; flight hours: 4,000 total, 3,000 in this make and model, 3,900 as pilot in command, 75 in the last 90 days, 30 in the last 30 days, 12 in the last 24 hours - Pilot, aircraft N3660X; age 63; commercial; airplane ratings: single-engine land; medical: class 2, valid medical--w/ waivers/lim; seat: center; toxicology performed; flight hours: 8,500 total, 7,000 in this make and model, 8,200 as pilot in command, 105 in the last 90 days, 55 in the last 30 days, 13 in the last 24 hours ## Weather - Conditions: Visual (VMC), Dusk - Visibility: 8 statute miles - Lowest ceiling: none - Temperature: 88 °F - Altimeter: 30.00 inHg - Observed at: LIT, 48 nm away ## FAA reports on this event (2) The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs). - [Accident 19880729053461A](https://openairdocs.org/incident/19880729053461A), Jul 29, 1988: Ayres 600S2C, Almyra, AR, Destroyed, 1 fatal. Collided with another spray plane,N3660X,while spraying adjoining fields. Climbed, cut off higher spray planes tail - [Accident 19880729053462A](https://openairdocs.org/incident/19880729053462A), Jul 29, 1988: Ayres S2RRESTD, Almyra, AR, Destroyed, 1 fatal. Was struck by other spray plane,N1671S,that climbed under the aircraft and cut off its tail. Both aircraft destroyed ## Other investigations on N1671S (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 FTW66D0056](https://openairdocs.org/ntsb/FTW66D0056-171805), May 13, 1966: Snow S2C (N1671S), Edna, TX, 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. --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.