# NTSB LAX93T#A05: Grumman GS-2F, N450DF, Grass Valley, CA, July 9, 1993

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Class 3 · Final report
- Date: July 9, 1993, 16:30 local (23:30 UTC)
- Place: Grass Valley, CA
- Coordinates: 39.180149, -120.979988 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=39.1801&lon=-120.9800&mi=10
- Highest injury: No injuries
- Status: Completed
- Investigation class: Class 3
- NTSB case key (mKey): 27994
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX93T#A05
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/27994/pdf
- Page: https://openairdocs.org/ntsb/LAX93T%23A05

## Aircraft

- Registration: [N450DF](https://openairdocs.org/deregistered/N450DF-2002-02-05), registration cancelled 2002-02-05, S/N 421, built 1953 (OpenAirDocs)
- Reported make and model: GRUMMAN GS-2F
- Registry model: [Grumman S2F-1 (TS-2A)](https://openairdocs.org/model/grumman-s2f-1-ts-2a) (registry code 3951102) (OpenAirDocs)
- Registry engine: [Wright R-1820 series](https://openairdocs.org/engine/wright-r-1820-series) (registry code 67020, reciprocating) (OpenAirDocs)
- Category: Airplane
- Damage: Substantial damage
- Fire: Unknown
- Flight: Public aircraft, Part 91
- Operator: Calif Dept Of Forestry
- Departed: O17
- Destination: 017

## Weather

- Conditions: Visual (VMC), Not reported
- Wind: 250° at 15 knots
- Visibility: 15 statute miles
- Lowest ceiling: none
- Temperature: 91 °F, dew point 54 °F
- Altimeter: 30.00 inHg

## Other investigations on N450DF (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 LAX01GA291](https://openairdocs.org/ntsb/LAX01GA291), Aug 28, 2001: Grumman TS-2A (N450DF), Hopland, CA, destroyed, 2 fatal. Probable cause: the failure of both pilots to maintain an adequate visual lookout. The failure of the pilot in Tanker 87 to comply with suggested procedures regarding positive radio contact and orbit entry was a…

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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