# NTSB MKC87LA072: Grumman-Schweizer G-164A, N48564, Dodge City, KS, April 1, 1987

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: April 1, 1987, 12:25 local (18:25 UTC)
- Place: Dodge City, KS
- Coordinates: 37.750205, -100.009941 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=37.7502&lon=-100.0099&mi=10
- Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report November 29, 1988
- Report: Approved by Office Director
- NTSB case key (mKey): 34358
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MKC87LA072
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/34358/pdf
- Page: https://openairdocs.org/ntsb/MKC87LA072

## 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, go-around (vfr)
  - eng assembly,blower/impeller/integral supercharger - failure,total (cause)
  - emergency procedure - initiated, pilot in command
- Forced landing, maneuvering - turn to landing area (emergency)
  - weather condition - high wind (contributing factor)
- Nose over, landing - roll
  - terrain condition - rough/uneven (cause)
  - weather condition - high wind (contributing factor)

## Analysis

THE PILOT STATED THAT THE AIRCRAFT WAS OPERATING NORMALLY WHEN HE ESTABLISHED HIMSELF ON FINAL APPROACH FOR RWY 32. WINDS WERE FROM THE NORTHEAST AT 25 KTS, THE PILOT FURTHER STATED, SO HE ABANDONED THE APPROACH AND WAS IN THE PROCESS OF CIRCLING THE FIELD FOR A LANDING ON RWY 02 WHEN THE ENGINE BEGAN LOSING POWER. ACCORDING TO A MECHANIC-WITNESS ON THE GROUND, THE AIRCRAFT'S ENGINE 'SOUNDED BAD--LIKE A BLOWER FAILURE', AS IT FLEW OVER THE HANGAR WHILE CIRCLING FOR ANOTHER APPROACH. AT THIS POINT, THE WITNESS FURTHER STATED, THE ENGINE BEGAN BELCHING SMOKE AND TOTALLY LOST POWER. THE PILOT ATTEMPTED A RETURN TO THE FIELD BUT HE RAN OUT OF ALTITUDE--AND WAS FORCED TO LAND IN A FIELD ADJACENT TO THE AIRPORT. THE AIRCRAFT BOUNCED UPON TOUCHDOWN, THEN NOSED OVER. A POST-ACCIDENT EXAMINATION OF THE POWERPLANT REVEALED THAT A BLOWER BEARING HAD FAILED.

## Aircraft

- Registration: [N48564](https://openairdocs.org/deregistered/N48564-2004-08-30), registration cancelled 2004-08-30, S/N 1675, built 1976 (OpenAirDocs)
- Reported make and model: GRUMMAN-SCHWEIZER 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)
- Category: Airplane
- Serial number: 1675
- Engines: P&W R-1340-AN1 600 horsepower reciprocating
- Damage: Substantial damage
- Flight: Aerial application, Part 137
- Registered owner: Erhart Aerial Spraying, Inc.
- Airworthiness certificate: Special, Restricted (Special)
- Departed: DDC, DODGE CITY, KS
- Airport: DDC, Dodge City Muni

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 34; flight instructor, commercial; airplane ratings: single-engine land; medical: class 2, valid medical--w/ waivers/lim; flight hours: 2,234 total, 72 in this make and model, 2,073 as pilot in command, 72 in the last 90 days, 72 in the last 30 days

## Weather

- Conditions: Visual (VMC), Day
- Wind: 10° at 25 knots, gusting 30
- Visibility: 20 statute miles
- Lowest ceiling: none
- Temperature: 55 °F, dew point 37 °F
- Altimeter: 29.00 inHg
- Observed at: DDC, 8 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 19870401008159A](https://openairdocs.org/incident/19870401008159A), Apr 1, 1987: Scwzer G164A, Dodge City, KS, Substantial damage. Lost power. Forced landing in field next to airport. Bounced on landing and nosed over. Blower bearing had failed.

## Other investigations on N48564 (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 SEA04LA065](https://openairdocs.org/ntsb/SEA04LA065), Apr 5, 2004: Grumman G-164 (N48564), Nezperce, ID, substantial damage. Probable cause: The circumferential fracture of the number seven cylinder head while en route to an aerial fertilizer application, leading to a forced landing on soft terrain, resulting in the collapse of the right…

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.