# NTSB LAX84FU021: Teman MONO-FLY, Congress, AZ, November 10, 1983

- Type: NTSB accident investigation
- Classification: Accident · Serious injuries · Final report
- Date: November 10, 1983, 12:30 local (19:30 UTC)
- Place: Congress, AZ
- Coordinates: 34.210189, -112.969841 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=34.2102&lon=-112.9698&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: Serious injuries
- Injuries: 1 serious
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 24010
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX84FU021
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/24010/pdf
- Page: https://openairdocs.org/ntsb/LAX84FU021

## Sequence of events

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

- Loss of control - in flight, takeoff - initial climb
  - reason for occurrence undetermined (cause)
- In flight collision with terrain/water, descent - uncontrolled

## Analysis

REPORTEDLY, THE PLT WAS ON HIS 1ST FLT IN THE ULTRALIGHT VEHICLE AFTER HE HAD BEEN TAXIING IT DURING THE PREVIOUS WEEK. DURING TAKEOFF FROM A RANCH, THE VEHICLE COLLIDED WITH THE GROUND. ACCORDING TO THE DEPUTY SHERIFF, WHO RESPONDED TO THE SCENE, THE PLT STATED THAT THE CONTROLS FAILED TO RESPOND & HE WAS UNABLE TO LEVEL THE VEHICLE FROM A LEFT BANK. THE PLT REFUSED TO COOPERATE WITH THE INVESTIGATOR. HE SAID HE HAD SOLD THE VEHICLE & DID NOT KNOW WHERE IT WAS LOCATED.

## Aircraft

- Registration: UNREG (not matched to a registry record)
- Reported make and model: TEMAN MONO-FLY
- Category: Ultralight
- Engines: unknown UNKNOWN unknown
- Damage: Substantial damage
- Flight: Personal, Part 103
- Operator: Lester Ralph Pack

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 58; student; airplane ratings: single-engine land; medical: class 3, valid medical--w/ waivers/lim

## Weather

- Conditions: Visual (VMC), Day
- Wind: 150° at 6 knots
- Visibility: 30 statute miles
- Lowest ceiling: none
- Temperature: 64 °F

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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