# NTSB FTW91DPG03: Grumman G-164A, N5336, Earle, AR, April 2, 1991

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Final report
- Date: April 2, 1991, 10:25 local (15:25 UTC)
- Place: Earle, AR
- Coordinates: 35.140739, -90.179252 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=35.1407&lon=-90.1793&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 31, 1993
- Report: Approved by Office Director
- NTSB case key (mKey): 23193
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=FTW91DPG03
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/23193/pdf
- Page: https://openairdocs.org/ntsb/FTW91DPG03

## Probable cause

A POWER LOSS FOR UNDETRMINED REASONS. A FACTOR WAS THE MUDDY/SOFT TERRAIN IN WHICH THE FORCED LANDING WAS PERFORMED.

## 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
  - reason for occurrence undetermined (cause)
- Forced landing, descent - emergency
- In flight collision with terrain/water, landing - flare/touchdown
  - terrain condition - none suitable (contributing factor)
  - terrain condition - soft
  - terrain condition - wet

## Analysis

WHILE CRUISING AT ABOUT 150 FEET AGL, THE ENGINE 'MADE A LOUD POP' AND POWER WENT TO IDLE. DURING THE FORCED LANDING IN MUDDY TERRAIN THE AIRPLANE NOSED OVER.

## Aircraft

- Registration: [N5336](https://openairdocs.org/deregistered/N5336-2014-10-27), registration cancelled 2014-10-27, S/N 663, built 1969 (OpenAirDocs)
- Reported make and model: GRUMMAN G-164A
- Registry model: [Grumman G-164A](https://openairdocs.org/model/grumman-g-164a) (registry code 3952704) (OpenAirDocs)
- Registry engine: [Pratt & Whitney R-985 series](https://openairdocs.org/engine/pratt-whitney-r-985-series) (registry code 52008, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 663
- Airframe hours: 6244
- Engines: P&W R-985-AN1 450 horsepower reciprocating
- Damage: Substantial damage
- Flight: Aerial application, Part 137
- Operator: A1 Management
- Registered owner: Sky Hawk Aviation
- Airworthiness certificate: Special, Restricted (Special)
- Last inspection: Annual, February 8, 1991, 19 hours before
- Departed: PARKIN, AR

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 25; commercial, flight instructor; airplane ratings: single-engine land; instrument ratings: airplane; medical: class 2, valid medical--no waivers/lim.; seat: center; flight hours: 2,087 total, 331 in this make and model, 1,998 as pilot in command, 19 in the last 90 days, 19 in the last 30 days, 2 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 150° at 7 knots
- Visibility: 20 statute miles
- Lowest ceiling: none
- Temperature: 68 °F, dew point -0 °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 19910402008179A](https://openairdocs.org/incident/19910402008179A), Apr 2, 1991: Scwzer G164A, Earle, AR, Substantial damage. Engine trailed smoke and lost power. Flipped over on forced landing.

## Other investigations on N5336 (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 MKC90LA067](https://openairdocs.org/ntsb/MKC90LA067), Mar 17, 1990: Grumman AG-CAT G-164A (N5336), Parkin, AR, substantial damage. Probable cause: TOTAL FAILURE OF THE ENGINE'S MASTER CONNECTING ROD.

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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