# NTSB LAX91LA029: Cessna 150F, N8247S, San Diego, CA, November 14, 1990

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: November 14, 1990, 14:28 local (22:28 UTC)
- Place: San Diego, CA
- Coordinates: 32.549446, -117.039695 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=32.5494&lon=-117.0397&mi=10
- Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report March 12, 1993
- Report: Approved by Office Director
- NTSB case key (mKey): 27059
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX91LA029
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/27059/pdf
- Page: https://openairdocs.org/ntsb/LAX91LA029

## Probable cause

THE FAILURE OF THE STUDENT PILOT TO MAINTAIN AN ADEQUATE AIRSPEED WHILE MANEUVERING IN THE TRAFFIC PATTERN; MAINTAIN CONTROL OF THE AIRCRAFT AND THE INADVERTENT STALL MUSH. A FACTOR IN THE ACCIDENT WAS THE PILOT'S LIMITED TOTAL EXPEREINCE.

## 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 - base leg/base to final
  - airspeed(vso) - not maintained, pilot in command (cause)
  - aircraft control - not maintained, pilot in command (cause)
  - stall/mush - inadvertent, pilot in command (cause)
  - lack of total experience, pilot in command (contributing factor)
- In flight collision with terrain/water, descent - uncontrolled

## Analysis

THE PILOT STATED THAT HE HAD PROBLEMS CONTROLLING THE AIRCRAFT WHILE TURNING FROM BASE TO FINAL. THE AIRCRAFT IMPACTED THE GROUND SHORT OF THE RUNWAY. FAA INSPECTORS FROM THE SAN DIEGO FLIGHT STANDARDS DISTRICT OFFICE EXAMINED THE AIRCRAFT. NO DISCREPANCIES WERE FOUND IN THE AIRCRAFT CONTROL SYSTEM. NO EVIDENCE WAS FOUND OF A MALFUNCTION IN THE EXAMINATION OF THE ENGINE. THE PILOT HAD 9 HOURS OF SOLO EXPERIENCE.

## Aircraft

- Registration: [N8247S](https://openairdocs.org/deregistered/N8247S-2013-05-14), registration cancelled 2013-05-14, S/N 15061847, built 1965 (OpenAirDocs)
- Reported make and model: CESSNA 150F
- Registry model: [Cessna 150F](https://openairdocs.org/model/cessna-150f) (registry code 2071814) (OpenAirDocs)
- Registry engine: [Continental 0-200 series](https://openairdocs.org/engine/continental-0-200-series) (registry code 17020, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 15061847
- Engines: CONTINENTAL O-200A 100 horsepower reciprocating
- Damage: Substantial damage
- Flight: Instructional, Part 91
- Operator: Flying 'J' Aviation
- Airport: SDM, Brown Field, runway 26L, 3,032 × 70 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 65; student; medical: class 3, valid medical--w/ waivers/lim; flight hours: 58 total, 58 in this make and model, 9 as pilot in command, 9 in the last 90 days, 2 in the last 30 days, 1 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 270° at 6 knots
- Visibility: 10 statute miles
- Lowest ceiling: none
- Temperature: 70 °F, dew point 55 °F
- Altimeter: 29.00 inHg
- Observed at: SDM

## 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 19901114050269A](https://openairdocs.org/incident/19901114050269A), Nov 14, 1990: Cessna 150F, San Diego, CA, Substantial damage. Student lost control turning final. Crashed short of runway.

## Other investigations on N8247S (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 LAX73FUA20](https://openairdocs.org/ntsb/LAX73FUA20), Oct 29, 1972: Cessna 150 (N8247S), Lomita, 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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