# NTSB ATL83LA205: Grumman G-164B, N8476K, Blakely, GA, June 1, 1983

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: May 31, 1983, 20:15 local (Jun 1, 1983, 00:15 UTC)
- Place: Blakely, GA
- Location: 31.3809° N, 84.9270° W: Placed by OpenAirDocs: center of Blakely, GA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=31.3809&lon=-84.9270&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: Approved by Office Director
- NTSB case key (mKey): 6076
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ATL83LA205
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/6076/pdf
- Page: https://openairdocs.org/ntsb/ATL83LA205

## 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, takeoff - initial climb
  - eng assembly,blower/impeller/integral supercharger - failure,total (cause)
- Forced landing, landing - flare/touchdown
- In flight collision with object, landing - flare/touchdown
  - object - tree(s) (contributing factor)

## Analysis

SHORTLY AFTER TAKEOFF, THE ENG SPUTTERED, LOST POWER & BELCHED BLACK & GRAY SMOKE. THE PLT WAS UNABLE TO GET THE ACFT TO MAINTAIN ALTIDUDE. ALSO, HE WAS UNABLE TO REACH AN OPEN FIELD, SO HE LANDED ON THE TOPS OF TREES. AN INVESTIGATION REVEALED THAT THE FRONT BEARING OF THE SUPERCHARGER HAD FAILED. ALSO, THE INVESTIGATION REVEALED THAT ON THE PREVIOUS DAY, AN OIL SCAVENGE LINE HAD BECOME CRACKED WHILE THE AIRCRAFT WAS BEING TAXIED. IT WAS REPAIRED PRIOR TO FLT. NO RELATIONSHIP CONCERNING THE SCAVENGE LINE & THE SUPERCHARGER WAS VERIFIED.

## Aircraft

- Registration: [N8476K](https://openairdocs.org/deregistered/N8476K-2013-05-14), registration cancelled 2013-05-14, S/N 703B, built 1982 (OpenAirDocs)
- Reported make and model: GRUMMAN G-164B
- Registry model: [Schweizer G-164B](https://openairdocs.org/model/schweizer-g-164b) (registry code 8059055) (OpenAirDocs)
- Registry engine: [Pratt & Whitney R1340 series](https://openairdocs.org/engine/pratt-whitney-r1340-series) (registry code 52016, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 703B
- Airframe hours: 19
- Engines: P&W R-1340-AN1 600 horsepower reciprocating
- Damage: Destroyed
- Flight: Personal, Part 91
- Registered owner: Coates, Richard
- Airworthiness certificate: Special, Restricted (Special)
- Last inspection: Annual, May 20, 1983, 19 hours before
- Airport: 11J, Early City, runway 23, 3,200 × 60 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 26; commercial; airplane ratings: single-engine land; medical: class 2, valid medical--no waivers/lim.; seat: left; flight hours: 2,048 total, 700 in this make and model, 11 as pilot in command, 14 in the last 90 days

## Weather

- Conditions: Visual (VMC), Dusk
- Wind: calm
- Visibility: 5 statute miles
- Lowest ceiling: none

## 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 19830531059569A](https://openairdocs.org/incident/19830531059569A), May 31, 1983: Scwzer G164B, Blakely, GA, Destroyed. Engine quit on acceptance flight for owner. Crashed into trees. Turbocharger oil scavenger line had cracked.

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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