# NTSB LAX84LA207: Cessna 172M, N1485V, San Luis Obispo, CA, March 5, 1984

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: March 4, 1984, 16:32 local (Mar 5, 1984, 00:32 UTC)
- Place: San Luis Obispo, CA
- Coordinates: 35.250415, -120.619552 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=35.2504&lon=-120.6196&mi=10
- Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 24192
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX84LA207
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/24192/pdf
- Page: https://openairdocs.org/ntsb/LAX84LA207

## Sequence of events

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

- Loss of control - in flight, approach - vfr pattern - final approach
  - aircraft handling - improper, pilot in command (cause)
  - spiral - inadvertent, pilot in command
- In flight collision with terrain/water, approach - vfr pattern - final approach

## Analysis

THE ACFT SPIRALED DOWN AND COLLIDED WITH THE GROUND WHILE TURNING FROM BASE LEG TO FINAL IN THE TRAFFIC PATTERN. THE PLTSAID HE TRIED TO CORRECT THE SITUATION BUT THE SPRIAL CONTINUED. NO EVIDENCE WAS FOUND TO SUPPORT THE PLTS CLAIM THAT THE ACFT CRASHED BECAUSE IT HAD BEEN INVOLVED IN A GROUND COLLISION.

## Aircraft

- Registration: [N1485V](https://openairdocs.org/deregistered/N1485V-2013-08-06), registration cancelled 2013-08-06, S/N 17263619, built 1974 (OpenAirDocs)
- Reported make and model: CESSNA 172M
- Registry model: [Cessna 172M](https://openairdocs.org/model/cessna-172m) (registry code 2072418) (OpenAirDocs)
- Registry engine: [Lycoming 0-320 series](https://openairdocs.org/engine/lycoming-0-320-series) (registry code 41508, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 63619
- Airframe hours: 3568
- Engines: LYCOMING O-320 150 horsepower reciprocating
- Damage: Destroyed
- Flight: Personal, Part 91
- Registered owner: Cal Coast Flyers
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, October 15, 1983, 5 hours before
- Departed: SBP

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 48; private; airplane ratings: single-engine land; medical: class 3, valid medical--no waivers/lim.; seat: left; flight hours: 141 total, 3 in this make and model, 90 as pilot in command, 7 in the last 90 days, 1 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 270° at 8 knots
- Visibility: 10 statute miles
- Lowest ceiling: none
- Temperature: 75 °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 19840304005989A](https://openairdocs.org/incident/19840304005989A), Mar 4, 1984: Cessna 172M, San Luis Obispo, CA, Destroyed. Became too slow on base leg. Stalled and spiraled to the ground. Claims prior damage wing problem. None found.

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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