# NTSB FTW92DPG06: Grumman G-164A, N8922H, Swifton, AR, July 6, 1992

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Final report
- Date: July 6, 1992, 09:30 local (14:30 UTC)
- Place: Swifton, AR
- Coordinates: 35.819141, -91.120811 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=35.8191&lon=-91.1208&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report March 9, 1993
- Report: Approved by Office Director
- NTSB case key (mKey): 23411
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=FTW92DPG06
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/23411/pdf
- Page: https://openairdocs.org/ntsb/FTW92DPG06

## Probable cause

LOSS OF ENGINE POWER. A FACTOR WAS THE LACK OF SUITABLE TERRAIN FOR FORCED LANDING.

## 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, maneuvering - aerial application
  - compressor assembly,impeller - failure,total (cause)
- Forced landing, descent - emergency
- Nose over, landing - roll
  - terrain condition - none suitable (contributing factor)

## Analysis

DURING AGRICULTURE OPERATIONS THE AIRPLANE LOST TOTAL ENGINE POWER WHILE MANEUVERING DUE TO A FAILED IMPELLER IN THE SUPERCHARGER SECTION. DURING THE SUBSEQUENT FORCED LANDING THE AIRPLANE NOSED OVER IN SOFT TERRAIN.

## Aircraft

- Registration: [N8922H](https://openairdocs.org/deregistered/N8922H-2017-08-23), registration cancelled 2017-08-23, S/N 1566, built 1975 (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: 1566
- Airframe hours: 5706
- Engines: P&W R-1340 600 horsepower reciprocating
- Damage: Substantial damage
- Flight: Aerial application, Part 137
- Operator: Stephen L. Anderson
- Registered owner: Bobby C. Norris
- Airworthiness certificate: Special, Restricted (Special)
- Last inspection: Annual, April 14, 1992, 250 hours before
- Departed: NONE
- Destination: NONE

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 41; commercial; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 2, valid medical--w/ waivers/lim; seat: center; flight hours: 13,500 total, 4,500 in this make and model, 13,200 as pilot in command, 250 in the last 90 days, 100 in the last 30 days, 10 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 225° at 3 knots
- Visibility: 12 statute miles
- Lowest ceiling: none
- Temperature: 75 °F, dew point 73 °F
- Altimeter: 29.00 inHg

## 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 19920706023859A](https://openairdocs.org/incident/19920706023859A), Jul 6, 1992: Scwzer G164A, Swifton, AR, Substantial damage. Engine failed during pullup from a spray run. Supercharger impeller bearing disintegrated.

## Other investigations on N8922H (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 FTW97LA136](https://openairdocs.org/ntsb/FTW97LA136), Mar 22, 1997: Grumman G-164A (N8922H), Swifton, AR, destroyed, 1 fatal. Probable cause: the pilot's improper in-flight planning/decision and failure to maintain positive control of the airplane, while performing an aerobatic maneuver.

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.