# NTSB MIA90LA078: Grumman G-164A, N5416, Mattson, MS, March 5, 1990

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: March 5, 1990, 10:15 local (16:15 UTC)
- Place: Mattson, MS
- Location: 34.0979° N, 90.5101° W: Placed by OpenAirDocs: center of Mattson, MS, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=34.0979&lon=-90.5101&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report September 21, 1992
- Report: Approved by Office Director
- NTSB case key (mKey): 32630
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MIA90LA078
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/32630/pdf
- Page: https://openairdocs.org/ntsb/MIA90LA078

## Probable cause

THE NO. 6 CYLINDER WHICH CRACKED ACROSS THE TOP FROM ONE SPARK PLUG HOLE TO THE OTHER, RESULTING IN THE LOSS OF ENGINE POWER.

## Sequence of events

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

- Loss of engine power, takeoff - initial climb
- Forced landing, descent - emergency
- Nose over, landing - flare/touchdown

## Analysis

SHORTLY AFTER TAKEOFF, THE PLT REPORTED THAT THE ENG LOST POWER. HE THEN DUMPED THE LOAD OF CHEMICAL & AFTER TOUCHDOWN IN THE PLOWED FIELD DURING THE FORCED LANDING, THE ACFT NOSED OVER. EXAM OF THE ENG REVEALED THAT THE NO.6 CYLINDER CRACKED ACROSS THE TOP FROM ONE SPARK PLUG HOLE TO THE OTHER. THIS RESULTED IN THE LOSS OF POWER.

## Aircraft

- Registration: [N5416](https://openairdocs.org/aircraft/N5416), registered now, S/N 1030 (OpenAirDocs)
- Reported make and model: GRUMMAN G-164A
- Registry model: [Grumman G-164A](https://openairdocs.org/model/grumman-g-164a) (registry code 3952704) (OpenAirDocs)
- Category: Airplane
- Serial number: 1030
- Airframe hours: 7177
- Engines: P&W R-1340-AN1 600 horsepower reciprocating
- Damage: Substantial damage
- Flight: Aerial application, Part 137
- Operator: Howard Flying Service, Inc.
- Registered owner: Howard Flying Service, Inc
- Airworthiness certificate: Special, Restricted (Special)
- Last inspection: Annual, November 30, 1989, 41 hours before

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 40; commercial; airplane ratings: single-engine land; medical: class 2, valid medical--w/ waivers/lim; seat: center; flight hours: 4,820 total, 3,021 in this make and model, 4,670 as pilot in command

## Weather

- Conditions: Visual (VMC), Day
- Wind: 180° at 5 knots
- Visibility: 15 statute miles
- Lowest ceiling: none
- Temperature: 70 °F, dew point 36 °F
- Altimeter: 30.00 inHg
- Observed at: GWO, 43 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 19900305029439A](https://openairdocs.org/incident/19900305029439A), Mar 5, 1990: Scwzer G164A, Mattson, MS, Substantial damage. Rough engine on spray run then power loss. Nosed over landing in a field after dumping load. NR6 cylinder failed.

## Other investigations on N5416 (2)

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 CEN25LA160](https://openairdocs.org/ntsb/CEN25LA160), Apr 18, 2025: Grumman G164 (N5416), Louise, TX, substantial damage. Probable cause: The reported loss of engine power for undetermined reasons.
- [NTSB DEN02LA081](https://openairdocs.org/ntsb/DEN02LA081), Jul 24, 2002: Grumman G-164A (N5416), Two Buttes, CO, substantial damage. Probable cause: the failure of the right main landing wheel master brake cylinder and the subsequent inadvertent ground loop during the landing roll by the pilot.

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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