# NTSB FTW87DRA06: Grumman G-164B, N6881K, Beaumont, TX, July 11, 1987

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Final report
- Date: July 11, 1987, 09:00 local (14:00 UTC)
- Place: Beaumont, TX
- Location: 30.0860° N, 94.1018° W: Placed by OpenAirDocs: center of Beaumont, TX, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=30.0860&lon=-94.1018&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 March 31, 1989
- Report: Approved by Office Director
- NTSB case key (mKey): 22191
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=FTW87DRA06
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/22191/pdf
- Page: https://openairdocs.org/ntsb/FTW87DRA06

## 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, takeoff - initial climb
  - engine assembly,bearing - failure,total (cause)
  - eng assembly,blower/impeller/integral supercharger - failure,partial (cause)
- Forced landing, maneuvering - turn to landing area (emergency)
- Nose over, landing - roll
  - terrain condition - high vegetation (contributing factor)
  - terrain condition - wet (contributing factor)
  - terrain condition - soft (contributing factor)

## Analysis

DRG THE INITIAL CLIMB AFTER TAKEOFF, THE ENG BEGAN LOSING RPM & THE PLT WAS UNABLE TO RETURN TO THE ARPT. HE SELECTED A PASTURE AREA FOR AN EMERG LANDING, BUT THE ENG CONTD LOSING POWER. WHILE LANDING ON SOFT TERRAIN WITH TALL WET GRASS, THE ACFT NOSED OVER. AN INVESTIGATION REVEALED A BLOWER BEARING HAD FAILED WHICH RESULTED IN THE PROGRESSIVE LOSS OF POWER.

## Aircraft

- Registration: [N6881K](https://openairdocs.org/deregistered/N6881K-1998-10-06), registration cancelled 1998-10-06, S/N 510B (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: 510B
- Airframe hours: 27650
- Engines: P&W R-1340 600 horsepower reciprocating
- Damage: Substantial damage
- Flight: Positioning, Part 137
- Registered owner: M&M Air Service
- Airworthiness certificate: Special, Restricted (Special)
- Last inspection: 100 hour, July 10, 1987, 2 hours before
- Destination: T78, LIBERTY, TX
- Airport: Mitchell Field

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 42; commercial; airplane ratings: single-engine land; medical: class 2, valid medical--w/ waivers/lim; seat: front; flight hours: 6,679 total, 5,116 in this make and model, 6,583 as pilot in command, 305 in the last 90 days, 118 in the last 30 days, 1 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: calm
- Visibility: 10 statute miles
- Lowest ceiling: none
- Temperature: 84 °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 19870711034699A](https://openairdocs.org/incident/19870711034699A), Jul 11, 1987: Scwzer G164B, Beaumont, TX, Substantial damage. The engine lost power. The aircraft nosed over on landing. Pistons corroded. Suspect blower failure.

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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