# NTSB FTW83LA115: Bell 206B, N900JJ, Addison, TX, February 13, 1983

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: February 13, 1983, 15:30 local (21:30 UTC)
- Place: Addison, TX
- Coordinates: 32.959564, -96.830848 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=32.9596&lon=-96.8308&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 20809
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=FTW83LA115
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/20809/pdf
- Page: https://openairdocs.org/ntsb/FTW83LA115

## 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
  - terrain condition - soft (contributing factor)
  - vertical takeoff - initiated, pilot in command (contributing factor)
  - aircraft handling - not maintained, pilot in command (cause)
- Roll over, takeoff
- In flight collision with terrain/water, takeoff

## Analysis

THE HELICOPTER WAS IN FLYABLE STORAGE & WAS ON A WEEKLY FLIGHT TO OPERATE THE VARIOUS SYSTEMS. AFTER LANDING ON SOFT TERRAIN, THE PLT STARTED TO TAKEOFF. AS THE HELICOPTER LIFTED OFF, IT ROLLED OVER & THE MAIN ROTOR BLADES STRUCK THE SURFACE. SUBSEQUENTLY, THE MAIN ROTOR SYSTEM & TRANSMISSION SEPARATED FROM THE ACFT. AN EXAM REVEALED NO PREIMPACT FAILURES. THE TERRAIN CONSISTED OF MOWED SOD WITH BLACK SOIL UNDERNEATH. THE SUFFACE WAS SOFT. TWO DEEP RUTS WERE FOUND AT THE SITE WITH ADDITIONAL RUTS (FROM THE SKIDS) NEARBY.

## Aircraft

- Registration: N900JJ (not matched to a registry record)
- Reported make and model: BELL 206B
- Category: Helicopter
- Serial number: 2270
- Engines: ALLISON 250-C20 400 horsepower turbo shaft
- Damage: Substantial damage
- Flight: Part 91
- Operator: Texas Pro Air
- Registered owner: Jacobs Aviation Company
- Airworthiness certificate: Standard, Normal
- Airport: ADS, Addison

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 33; commercial, flight instructor; airplane ratings: single-engine land; medical: class 2, valid medical--no waivers/lim.; seat: right; flight hours: 935 total, 203 in this make and model, 874 as pilot in command, 125 in the last 90 days, 2 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 100° at 10 knots
- Visibility: 8 statute miles
- Lowest ceiling: none
- Altimeter: 30.00 inHg
- Observed at: ADS

## 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 19830213012529A](https://openairdocs.org/incident/19830213012529A), Feb 13, 1983: Bell 206B, Addison, TX, Substantial damage. Helicopter rolled over on liftoff during a flight to operate stored aircrafts systems. Possible dynamic rollover.

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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