# NTSB LAX90LA173: Beech N35, N75BV, Los Banos, CA, May 12, 1990

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: May 12, 1990, 15:00 local (22:00 UTC)
- Place: Los Banos, CA
- Coordinates: 34.690647, -117.900077 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=34.6906&lon=-117.9001&mi=10
- Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report November 23, 1992
- Report: Approved by Office Director
- NTSB case key (mKey): 26802
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX90LA173
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/26802/pdf
- Page: https://openairdocs.org/ntsb/LAX90LA173

## Probable cause

THE PILOT'S FAILURE TO MAINTAIN DIRECTIONAL CONTROL OF THE AIRCRAFT DURING THE TAKEOFF ROLL.

## Sequence of events

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

- Loss of control - on ground/water, takeoff - roll/run
  - directional control - not maintained, pilot in command (cause)
- On ground/water collision with object, takeoff - roll/run
  - object - runway light

## Analysis

WHEN THE PILOT RELEASED THE BRAKES FOR THE TAKEOFF, THE AIRCRAFT VEERED OFF THE LEFT SIDE OF THE RUNWAY AND COLLIDED WITH A VASI LIGHT.

## Aircraft

- Registration: [N75BV](https://openairdocs.org/deregistered/N75BV-2013-09-12), registration cancelled 2013-09-12, S/N D-6752, built 1961 (OpenAirDocs)
- Reported make and model: BEECH N35
- Registry model: [Beech N35](https://openairdocs.org/model/beech-n35) (registry code 1151528) (OpenAirDocs)
- Registry engine: [Continental I0-470 series](https://openairdocs.org/engine/continental-i0-470-series) (registry code 17027, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: D6752
- Engines: CONTINENTAL IO-470-N 260 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: Partelow, Robert L.
- Registered owner: Unknown
- Departed: LSN
- Destination: SNS, SALINAS, CA
- Airport: LSN, Los Banos Muni, runway 32, 3,000 × 75 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 52; private; airplane ratings: single-engine land; medical: class 2, valid medical--w/ waivers/lim; flight hours: 313 total, 271 in this make and model, 263 as pilot in command, 2 in the last 90 days

## Weather

- Conditions: Visual (VMC), Day
- Wind: 220° at 16 knots
- Visibility: 30 statute miles
- Lowest ceiling: none
- Temperature: -0 °F, dew point -0 °F
- Observed at: MCE, 25 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 19900512015699A](https://openairdocs.org/incident/19900512015699A), May 12, 1990: Beech N35, Los Banos, CA, Substantial damage. Lost directional control on initial takeoff roll. Struck VASI light.

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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