# NTSB MKC88LA062: Grumman G-164B, N6750Q, West Point, AR, March 15, 1988

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: March 15, 1988, 10:15 local (16:15 UTC)
- Place: West Point, AR
- Location: 35.2033° N, 91.6099° W: Placed by OpenAirDocs: center of West Point, AR, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=35.2033&lon=-91.6099&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report March 30, 1989
- Report: Approved by Office Director
- NTSB case key (mKey): 34547
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MKC88LA062
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/34547/pdf
- Page: https://openairdocs.org/ntsb/MKC88LA062

## Sequence of events

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

- Loss of engine power(partial) - mech failure/malf, cruise
  - engine assembly,cylinder - cracked (cause)
- Forced landing, descent - emergency
  - load jettison - performed
- Nose over, landing - roll
  - terrain condition - soft (contributing factor)

## Analysis

THE PILOT SAID, SHORTLY AFTER TAKEOFF, ENROUTE TO AN AERIAL APPLICATION OPERATION, THE ENGINE BEGAN TO LOSE PWR AND BEGAN BACKFIRING. HE DUMPED A PORTION OF HIS LOAD, AND MADE AN EMERGENCY LDG IN A SOFT, UNPLANTED BEAN FIELD. AFTER ROLLING ABOUT 200 FEET, THE WHEELS SANK IN THE SOFT SOIL, AND THE ACFT NOSED OVER. POSTFLIGHT INSPECTION REVEALED NO. 6 CYLINDER TO BE CRACKED. THE INSURANCE COMPANY DECLARED THE ACFT A TOTAL LOSS.

## Aircraft

- Registration: [N6750Q](https://openairdocs.org/deregistered/N6750Q-1992-01-08), registration cancelled 1992-01-08, S/N 261B (OpenAirDocs)
- Reported make and model: GRUMMAN G-164B
- Registry model: [Grumman Acft ENG Cor-Schweizer G-164B](https://openairdocs.org/model/grumman-acft-eng-cor-schweizer-g-164b) (registry code 3952802) (OpenAirDocs)
- Category: Airplane
- Serial number: 261B
- Airframe hours: 3807
- Engines: P&W R985-AN1 450 horsepower reciprocating
- Damage: Substantial damage
- Flight: Aerial application, Part 137
- Operator: Howard'S Flying Service Inc.
- Registered owner: Howards Flying Service Inc
- Airworthiness certificate: Special, Restricted (Special)
- Last inspection: 100 hour, March 26, 1987, 12 hours before
- Departed: GRIFFITHVILLE, AR

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 56; flight instructor, commercial; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 2, valid medical--w/ waivers/lim; seat: left; flight hours: 8,361 total, 3,807 in this make and model, 8,225 as pilot in command, 40 in the last 90 days, 14 in the last 30 days, 2 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 320° at 12 knots
- Visibility: 20 statute miles
- Lowest ceiling: none
- Temperature: 52 °F, dew point 9 °F
- Altimeter: 30.00 inHg
- Observed at: LIT, 40 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 19880315005369A](https://openairdocs.org/incident/19880315005369A), Mar 15, 1988: Grumav STCG164, West Point, AR, Substantial damage. Engine lost power. Load dumped. Forced landing in a soft bean field. Aircraft nosed over. Found a cracked cylinder.

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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