# NTSB LAX83LA464: Grumman 164B, N6708K, Tracy, CA, September 30, 1983

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: September 30, 1983, 08:15 local (15:15 UTC)
- Place: Tracy, CA
- Coordinates: 37.730716, -121.420326 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=37.7307&lon=-121.4203&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): 23867
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX83LA464
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/23867/pdf
- Page: https://openairdocs.org/ntsb/LAX83LA464

## Sequence of events

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

- Loss of engine power(partial) - nonmechanical, takeoff - initial climb
  - fluid,fuel - water (contributing factor)
  - aircraft preflight - improper, pilot in command (cause)
  - fuel system,cap - leak (cause)
  - maintenance,replacement - not performed, pilot in command (cause)
  - ignition system,spark plug - water (cause)
- Forced landing, landing - flare/touchdown
- Nose over, landing - flare/touchdown

## Analysis

THE ACFT CRASHED DURING A FORCED LANDING SHORTLY AFTER TAKEOFF WHEN THE ENGINE LOST POWER AT ABOUT 10 FT AGL. HEAVY RAINHAD FALLEN THE NIGHT BEFORE AND THE ACFT ARE GENERALLY PARKED OUTSIDE. AFTER THE ENGINE LOST POWER THE PLT LANDED OFF THE END OF THE RWY AND THE ACFT NOSED OVER. POST ACCIDENT ENGINE EXAMINATION DISCLOSED ONE SPARK PLUG TO BE WATER SOAKEDEXAMINATION OF THE AIRFRAME DISCLOSED THE MAIN FUEL CAP SEAL TO BE 'BADLY CRACKED'. NO OTHER DISCREPANCIES WERE NOTED. THE PLT DID NOT STATE IF HE DRAINED THE FUEL DURING HIS PRE-FLT INSPECTION.

## Aircraft

- Registration: [N6708K](https://openairdocs.org/deregistered/N6708K-1991-10-29), registration cancelled 1991-10-29, S/N 374B (OpenAirDocs)
- Reported make and model: GRUMMAN 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: 374B
- Airframe hours: 2291
- Engines: P&W PW-1340 450 horsepower reciprocating
- Damage: Substantial damage
- Flight: Aerial application, Part 137
- Registered owner: Haley Flying Service, Inc.
- Airworthiness certificate: Special, Restricted (Special)
- Last inspection: 100 hour, January 6, 1983, 40 hours before
- Airport: runway 25, 1,800 ×  ft

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 35; commercial; airplane ratings: single-engine land; medical: class 2, valid medical--no waivers/lim.; seat: left; flight hours: 2,000 in this make and model

## Weather

- Conditions: Visual (VMC), Day
- Wind: 110° at 7 knots
- Visibility: 5 statute miles
- Lowest ceiling: 3,000 ft unknown
- Temperature: 61 °F, dew point 57 °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 19830930055189A](https://openairdocs.org/incident/19830930055189A), Sep 30, 1983: Scwzer G164B, Tracy, CA, Substantial damage. Engine quit on takeoff climb. Flipped over on forced landing. Water in fuel. Aircraft in rain with leaky fuel caps.

## Other investigations on N6708K (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 LAX90DUG05](https://openairdocs.org/ntsb/LAX90DUG05), Apr 19, 1990: Grumman G-164B (N6708K), Blythe, CA, destroyed, 1 fatal. Probable cause: FAILURE OF THE PILOTS OF N6708K AND N10222 TO MAINTAIN ADEQUATE VISUAL LOOKOUT AND FAILURE OF THE PILOT OF N6708K TO FOLLOW A PREARANGED PROCEDURE FOR REVERSING THE DIRECTION OF FLIGHT.
- [NTSB LAX84LA338](https://openairdocs.org/ntsb/LAX84LA338), Jun 7, 1984: Grumman G-164B (N6708K), Tracy, CA, substantial damage

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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