# NTSB MIA91LA222: Hoffmeyer Moni Standard, N133, Brooksville, FL, September 21, 1991

- Type: NTSB accident investigation
- Classification: Accident · Serious injuries · Limited investigation · Final report
- Date: September 21, 1991, 12:45 local (16:45 UTC)
- Place: Brooksville, FL
- Location: 28.5166° N, 82.4047° W: Placed by OpenAirDocs: center of Brooksville, FL, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=28.5166&lon=-82.4047&mi=10
- Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (OpenAirDocs' grouping)
- Highest injury: Serious injuries
- Injuries: 1 serious
- Status: Completed, report April 8, 1993
- Report: Approved by Office Director
- NTSB case key (mKey): 32929
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MIA91LA222
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/32929/pdf
- Page: https://openairdocs.org/ntsb/MIA91LA222

## Probable cause

INCAPACITATION OF THE PILOT IN COMMAND AND INADVERTENT STALL MUSH.

## Sequence of events

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

- Miscellaneous/other, takeoff - roll/run
  - incapacitation(loss of consciousness), pilot in command (cause)
- Loss of control - in flight, takeoff - initial climb
  - stall/mush - inadvertent, pilot in command (cause)
- In flight collision with terrain/water, descent - uncontrolled
  - terrain condition - ground

## Analysis

THE PLT PASSED OUT MOMENTARILY AFTER APPLYING THE THROTTLE TO TAKEOFF. THE MOTOR GLIDER BECAME AIRBORNE, STALLED, AND IMPACTED THE GROUND LT WING LOW.  THE PLT STATED THAT HE WAS AWAKENED DUE TO AIRFRAME BUFFETING JUST PRIOR TO STALLING.

## Aircraft

- Registration: [N133](https://openairdocs.org/deregistered/N133-1992-07-31), registration cancelled 1992-07-31, S/N 00133 (OpenAirDocs)
- Reported make and model: HOFFMEYER MONI STANDARD (MONI STAND)
- Registry model: [Hoffmeyer Robert W MONI STANDARD](https://openairdocs.org/model/hoffmeyer-robert-w-moni-standard) (registry code 1130850) (OpenAirDocs)
- Category: Glider, amateur-built
- Serial number: 00133
- Engines: KFM M2875 25 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: Hoffmeyer, Robert E.
- Registered owner: Hoffmeyer, Robert E.
- Airworthiness certificate: Special, Experimental (Special)

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 72; private; airplane ratings: single-engine land; medical: class 3, expired; flight hours: 500 total

## Weather

- Conditions: Visual (VMC), Day
- Wind: 90° at 7 knots
- Visibility: 9 statute miles
- Lowest ceiling: none
- Temperature: 88 °F, dew point 73 °F
- Altimeter: 30.00 inHg
- Observed at: TPA, 30 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 19910921042009A](https://openairdocs.org/incident/19910921042009A), Sep 21, 1991: Amtr MONI, Brooksville, FL, Substantial damage. Pilot passed out momentarily on takeoff. Motorized glider stalled and impacted ground,left wing low.

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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