# NTSB FTW85LA121: Boeing A75N1, N60885, Holmwood, LA, February 19, 1985

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Limited investigation · Final report
- Date: February 19, 1985, 09:30 local (15:30 UTC)
- Place: Holmwood, LA
- Coordinates: 30.109827, -92.960388 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=30.1098&lon=-92.9604&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 1 minor
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 21675
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=FTW85LA121
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/21675/pdf
- Page: https://openairdocs.org/ntsb/FTW85LA121

## Sequence of events

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

- In flight encounter with weather, cruise - normal
  - vfr flight into imc - inadvertent, pilot in command (contributing factor)
  - weather condition - fog (contributing factor)
  - weather condition - obscuration (contributing factor)
  - delayed (contributing factor)
- Vortex turbulence encountered, maneuvering - turn to reverse direction
  - in-flight planning/decision - improper, pilot in command (cause)
- Loss of control - in flight, maneuvering - turn to reverse direction
- In flight collision with terrain/water, descent - uncontrolled

## Analysis

THE ACFT WAS 1 OF 2 THAT WERE BEING REPOSITIONED FORM 1 AG STRIP TO ANOTHER. WHILE EN ROUTE, THE FLT ENCOUNTERED DENSE FOG & THE LEAD PLT INITIATED A 180 DEG TURN. DURING THE TURN, THE 2ND ACFT (N60885) WAS ABOUT 100 FT IN TRAIL OF THE 1ST ACFT AT APRX 150 FT AGL. WHILE TURNING, N60885 ENCOUNTERED WAKE TURBULENCE FROM THE 1ST ACFT, ENTERED A VERTICAL LEFT BANK, DESCENDED & SUBSEQUENTLY IMPACTED THE GROUND.

## Aircraft

- Registration: [N60885](https://openairdocs.org/aircraft/N60885), registered now, S/N 75-2757 (OpenAirDocs)
- Reported make and model: BOEING A75N1
- Registry model: [Boeing A75N1(PT17)](https://openairdocs.org/model/boeing-a75n1-pt17) (registry code 1380134) (OpenAirDocs)
- Registry engine: [Continental W670 series](https://openairdocs.org/engine/continental-w670-series) (registry code 17018, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: P&W R-985 450 horsepower reciprocating
- Damage: Substantial damage
- Flight: Positioning, Part 91
- Registered owner: Mrogan Crop Service
- Airworthiness certificate: Special, Restricted (Special)
- Departed: LAKE CHARLES, LA
- Destination: SWEETLAKE, LA

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 44; commercial; airplane ratings: single-engine land, multi-engine land; medical: class 2, valid medical--w/ waivers/lim; seat: left; flight hours: 10,601 total, 5,023 in this make and model, 10,469 as pilot in command, 136 in the last 90 days, 2 in the last 24 hours

## Weather

- Conditions: Instrument (IMC), Day
- Wind: calm
- Temperature: 45 °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 19850219003679A](https://openairdocs.org/incident/19850219003679A), Feb 19, 1985: Ryan ST3KR, Holmwood, LA, Substantial damage. Attempted turn back while in trail formation due to fog. Vortices from lead aircraft caused loss of control.

## Other investigations on N60885 (5)

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 FTW77FRD35](https://openairdocs.org/ntsb/FTW77FRD35), Jun 11, 1977: Boeing A75N1 (N60885), Sulphur, LA, substantial damage
- [NTSB FTW77DRD19](https://openairdocs.org/ntsb/FTW77DRD19), May 4, 1977: Boeing A75 (N60885), Laccassine, LA, substantial damage
- [NTSB FTW75FRD41](https://openairdocs.org/ntsb/FTW75FRD41), Apr 27, 1975: Boeing A75N1 (N60885), Iowa, LA, substantial damage
- [NTSB FTW68F0616](https://openairdocs.org/ntsb/FTW68F0616), Jun 1, 1968: Boeing A75N1 (N60885), Beaumont, TX, substantial damage
- [NTSB FTW66F0665](https://openairdocs.org/ntsb/FTW66F0665), May 9, 1966: Boeing A75N1 (N60885), Nederland, 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.

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