# NTSB MKC86LA122: Grumman G-164A, N7364, Bayard, NE, August 29, 1986

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: August 29, 1986, 18:30 local (23:30 UTC)
- Place: Bayard, NE
- Coordinates: 41.750289, -103.319572 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=41.7503&lon=-103.3196&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): 34188
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MKC86LA122
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/34188/pdf
- Page: https://openairdocs.org/ntsb/MKC86LA122

## Sequence of events

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

- Loss of control - in flight, maneuvering - aerial application
  - airspeed - inadequate, pilot in command (cause)
  - stall/mush - inadvertent, pilot in command (cause)
- In flight collision with terrain/water, descent - uncontrolled
  - terrain condition - ground (contributing factor)

## Analysis

THE PLT STATED HE ENCOUNTERED DOWNDRAFTS NEAR TREES HE WAS GOING TO OVERFLY WHILE IN A TURNAROUND MANEUVER TO SPRAY CROPS. INSTEAD OF FLYING OVER THE TREES, THE PLT STATED THAT THE ACFT DESCENDED INTO THE GROUND NEAR THE TREES WHILE IN THE TURN. WIND CONDITIONS REPORTED BY A FSS IN THE AREA SHOWED THAT THE WINDS WERE FROM THE SOUTH AT 7 TO 9 KNOTS. THE PLT STATED THAT HE HAD NO MECHANICAL PROBLEM WITH THE ENGINE OR ACFT DURING THE MANEUVER.

## Aircraft

- Registration: [N7364](https://openairdocs.org/aircraft/N7364), registered now, S/N 933, built 1972 (OpenAirDocs)
- Reported make and model: GRUMMAN G-164A
- Registry model: [Grumman Acft ENG Cor-Schweizer G-164A](https://openairdocs.org/model/grumman-acft-eng-cor-schweizer-g-164a) (registry code 3952801) (OpenAirDocs)
- Registry engine: [Pratt & Whitney R1340 series](https://openairdocs.org/engine/pratt-whitney-r1340-series) (registry code 52016, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 933
- Engines: P&W R-985-AN1 450 horsepower reciprocating
- Damage: Substantial damage
- Flight: Aerial application, Part 137
- Registered owner: Reisig Brothers Aerial Sprayin
- Airworthiness certificate: Special, Restricted (Special)
- Last inspection: Annual, March 1, 1986
- Departed: BFF, SCOTTSBLUFF, NE

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 44; commercial; airplane ratings: single-engine land; medical: class 2, valid medical--w/ waivers/lim; flight hours: 5,023 total, 2,100 in this make and model, 5,023 as pilot in command, 256 in the last 90 days, 8 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 170° at 9 knots
- Visibility: 25 statute miles
- Lowest ceiling: 25,000 ft broken
- Temperature: 88 °F, dew point 55 °F
- Altimeter: 29.00 inHg
- Observed at: BFF, 18 nm away

## 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 19860829043609A](https://openairdocs.org/incident/19860829043609A), Aug 29, 1986: Scwzer G164, Bayard, NE, Substantial damage. Struck trees during spray swath turn. Power was not applied in a timely manner.

## Other investigations on N7364 (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 FTW74DRJ29](https://openairdocs.org/ntsb/FTW74DRJ29), Apr 5, 1974: Grumman G-164A (N7364), Mer Rouge, LA, 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.