# NTSB MIA91LA205: Maxair ARV-582, Jacksonville, FL, August 26, 1991

- Type: NTSB accident investigation
- Classification: Accident · Serious injuries · Limited investigation · Final report
- Date: August 26, 1991, 10:20 local (14:20 UTC)
- Place: Jacksonville, FL
- Coordinates: 30.270099, -81.750946 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=30.2701&lon=-81.7509&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: Serious injuries
- Injuries: 2 serious
- Status: Completed, report May 27, 1993
- Report: Approved by Office Director
- NTSB case key (mKey): 32918
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MIA91LA205
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/32918/pdf
- Page: https://openairdocs.org/ntsb/MIA91LA205

## Probable cause

THE UNQUALIFIED PILOT'S FAILURE TO MAINTAIN AIRSPEED (VSO) WHILE MANEUVERING TO LAND, WHICH RESULTED IN AN IN FLIGHT LOSS OF CONTROL, STALL SPIN, AND COLLISION WITH TERRAIN.

## Sequence of events

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

- Loss of control - in flight, maneuvering
  - airspeed(vso) - not maintained, pilot in command (cause)
  - lack of total experience in type of aircraft, pilot in command (cause)
  - stall/spin - inadvertent, pilot in command
  - lack of familiarity with aircraft, pilot in command (cause)
- In flight collision with terrain/water, descent - uncontrolled
  - terrain condition - ground

## Analysis

THE AIRPLANE WAS OBSERVED BY WITNESSES IN THE TRAFFIC PATTERN AT 150 FEET AGL WITH A 20 TO 30 DEGREE NOSE UP ATTITUDE.  THE AIRPLANE BEGAN A LEFT TURN TOWARDS THE RUNWAY WITH A 30 DEGREE ANGLE OF BANK.  THE LEFT WING DROPPED DOWN 90 DEGREES, THE NOSE PITCHED DOWN 60 DEGREES, AND THE AIRPLANE DISAPPEARED BELOW THE TREE LINE COLLIDING WITH THE TERRAIN. THE AIRPLANE SUSTAINED SUBSTANTIAL DAMAGE. THE OWNER STATED IN AN INTERVIEW WITH THE FAA THAT THE PIC STALLED THE AIRPLANE. THE PILOT DID NOT HOLD A RATING TO FLY AIRPLANES AND IN ADDITION, DID NOT HAVE A CURRENT MEDICAL CERTIFICATE.

## Aircraft

- Registration: UNREG (not matched to a registry record)
- Reported make and model: MAXAIR ARV-582
- Category: Airplane, amateur-built
- Serial number: 7790
- Engines: ROTAX 582 64 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: Keith L. Dobson
- Registered owner: (Not Registered) Larry D Mason
- Departed: 23J, JACKSONVILLE, FL
- Airport: 23J, Herlong Field, runway 34, 4,000 × 100 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 43; commercial; instrument ratings: helicopter; flight hours: 3,820 total

## Weather

- Conditions: Visual (VMC), Day
- Visibility: 7 statute miles
- Lowest ceiling: none
- Temperature: 86 °F, dew point 72 °F
- Altimeter: 30.00 inHg
- Observed at: NZC, 4 nm away

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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