# NTSB FTW84LA369: Robinson R-22, N9067B, Austin, TX, August 27, 1984

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: August 27, 1984, 08:30 local (13:30 UTC)
- Place: Austin, TX
- Coordinates: 30.380182, -97.669128 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=30.3802&lon=-97.6691&mi=10
- Phase of flight: [Standing](https://openairdocs.org/ntsb-phases/150) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 21445
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=FTW84LA369
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/21445/pdf
- Page: https://openairdocs.org/ntsb/FTW84LA369

## Sequence of events

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

- On ground/water collision with object, standing - idling rotors
  - aircraft unattended/engine(s) running - initiated, pilot in command (cause)
  - rotorcraft flight control,collective control - unlocked
  - rotation - inadvertent (cause)
  - object - vehicle

## Analysis

AFTER LNDG THE PLT EXITED THE ACFT TO ASSIST DEPLANING OF THE PAX. THE ENGINE WAS STILL RUNNING. THE PLT HEARD A SURGE OF ENGINE POWER FOLLOWED BY THE ACFT ROTATING AND COLLIDING WITH A PARKED CAR. EXAMINATION OF THE ACFT DISCLOSED THAT THE COLLECTIVE BALANCE SPRING FAILED TO HOLD THE COLLECTIVE DOWN.

## Aircraft

- Registration: [N9067B](https://openairdocs.org/deregistered/N9067B-1995-08-14), registration cancelled 1995-08-14, S/N 0158 (OpenAirDocs)
- Reported make and model: ROBINSON R-22
- Registry model: [Robinson Helicopter R22](https://openairdocs.org/model/robinson-helicopter-r22) (registry code 7640102) (OpenAirDocs)
- Category: Helicopter
- Serial number: 0158
- Airframe hours: 753
- Engines: LYCOMING O-320-A2B 124 horsepower reciprocating
- Damage: Substantial damage
- Flight: Part 135
- Registered owner: Texas Business Helicopters
- Airworthiness certificate: Standard, Normal
- Departed: AUSTIN, TX

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 39; flight instructor, commercial; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 2, valid medical--no waivers/lim.; seat: right; flight hours: 5,215 total, 500 in this make and model, 4,610 as pilot in command, 180 in the last 90 days, 2 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 180° at 4 knots
- Visibility: 12 statute miles
- Temperature: 77 °F, dew point 72 °F
- Altimeter: 30.00 inHg
- Observed at: AUS, 5 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 19840827058169A](https://openairdocs.org/incident/19840827058169A), Aug 27, 1984: Robsin R22, Austin, TX, Substantial damage. Pilot left helicopter to assist passenger unloading. Cyclic slip. Helicopter rotated into a parked aircraft.

## Other investigations on N9067B (1)

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.

- [NTSB LAX95LA174](https://openairdocs.org/ntsb/LAX95LA174), Apr 29, 1995: Robinson R-22 (N9067B), Long Beach, CA, substantial damage. Probable cause: the pilot's misjudged landing flare. A factor in the accident was the illusion of a lower than actual altitude created by the high vegetation which led the pilot to flare early.

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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