# NTSB LAX90FA088: Beech F-33A, N3SN, Oro Valley, AZ, February 12, 1990

- Type: NTSB accident investigation
- Classification: Accident · Fatal · Field investigation · Final report
- Date: February 12, 1990, 11:03 local (18:03 UTC)
- Place: Oro Valley, AZ
- Coordinates: 32.410156, -110.949218 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=32.4102&lon=-110.9492&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: Fatal
- Injuries: 1 fatal, 1 minor; on the ground: 1 minor
- Status: Completed, report December 8, 1992
- Report: Approved by Office Director
- NTSB case key (mKey): 26613
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX90FA088
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/26613/pdf
- Page: https://openairdocs.org/ntsb/LAX90FA088

## Probable cause

THE PILOT'S POOR JUDGEMENT IN PERFORMING LOW LEVEL AEROBATIC MANEUVERS.

## Sequence of events

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

- In flight collision with object, maneuvering
  - object - residence (contributing factor)
  - judgment - poor, pilot in command (cause)
  - aerobatics - performed, pilot in command (cause)
  - altitude - inadequate, pilot in command (cause)
- In flight collision with terrain/water, descent - uncontrolled
  - terrain condition - open field

## Analysis

GROUND WITNESSES OBSERVED THE AIRPLANE PERFORMING A LOW LEVEL AEROBACTIC MANEUVER AT ABOUT 400 FEET AGL. THE AIRPLANE DESCENDED DURING THE MANEUVER AND STRUCK THE CHIMNEY OF A RESIDENCE UNDER CONSTRUCTION. A CONSTRUCTION WORKER ON THE ROOF SUSTAINED MINOR INJURIES WHEN HE FELL. NO EVIDENCE OF AIRPLANE/ENGINE MECHANICAL FAILURE/MALFUNCTION WAS FOUND.

## Aircraft

- Registration: [N3SN](https://openairdocs.org/deregistered/N3SN-1990-10-23), registration cancelled 1990-10-23, S/N CE745 (OpenAirDocs)
- Reported make and model: BEECH F-33A
- Registry model: [Beech F33A](https://openairdocs.org/model/beech-f33a) (registry code 1151425) (OpenAirDocs)
- Category: Airplane
- Serial number: CE 745
- Airframe hours: 1751
- Engines: CONTINENTAL IO 550B(4) 300 horsepower reciprocating
- Damage: Destroyed
- Fire: On-Ground
- Flight: Personal, Part 91
- Operator: Norris, Richard S.
- Registered owner: Norris, Richard S
- Airworthiness certificate: Standard, Utility
- Last inspection: Annual, August 8, 1989, 39 hours before

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 60; airline transport, commercial; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: class 2, valid medical--no waivers/lim.; seat: left; toxicology performed; flight hours: 17,292 total, 14 in the last 90 days, 5 in the last 30 days

## Weather

- Conditions: Visual (VMC), Day
- Wind: 140° at 10 knots
- Lowest ceiling: 14,000 ft broken
- Temperature: 66 °F, dew point 34 °F
- Altimeter: 29.00 inHg
- Observed at: TUS, 21 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 19900212001999A](https://openairdocs.org/incident/19900212001999A), Feb 12, 1990: Beech STC33, Oro Valley, AZ, Destroyed, 1 fatal. Lost control during low level acrobatics in residential area. Wing hit chimney during snap roll. Crashed and burned

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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