# NTSB SEA85LA014: Hiller UH-12E, N123ET, Lakeside, OR, November 5, 1984

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Limited investigation · Final report
- Date: November 5, 1984, 11:00 local (19:00 UTC)
- Place: Lakeside, OR
- Coordinates: 43.579578, -124.079666 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=43.5796&lon=-124.0797&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 3 minor
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 40084
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA85LA014
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/40084/pdf
- Page: https://openairdocs.org/ntsb/SEA85LA014

## Analysis

THE ACFT COLLIDED WITH POWER LINES DURING A TAKEOFF FROM A REMOTE LOGGING CAMP. THE PLT REPORTED HEARING A LOUD BANG DURING TAKEOFF. HE SAID THAT THE ACFT PITCHED RIGHT AND NOSED DOWN. 'THE ACFT SPUN TO THE RIGHT WITHOUT POWER. THE ACFT CAME TO REST INVERTED.' AN INSPECTION OF THE WRECKAGE BY FAA SHOWED SEVERAL AREAS WHERE COPPER WIRE WAS IMBEDDED IN A ROTOR BLADE AND A LANDING SKID. THE TAIL BOOM WAS ALSO MARKED BY WHAT APPEARED TO BE WIRE STRIKES. THE PLT REPORTED NO POWER LOSS OR MALFUNCTION. WITNESSES AT THE SITE SAID SEVERAL POWER LINES NEAR THE ACCIDENT SITE HAD BEEN SEVERED.

## Sequence of events

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

- In flight collision with object, takeoff - initial climb
  - object - wire,transmission (contributing factor)
  - visual lookout - inadequate, pilot in command (cause)
  - clearance - not maintained, pilot in command (cause)
- In flight collision with terrain/water, descent - uncontrolled

## Aircraft

- Registration: N123ET (not matched to a registry record)
- Reported make and model: HILLER UH-12E
- Category: Helicopter
- Serial number: HA3023
- Engines: LYCOMING VO-540-C2A 305 horsepower reciprocating
- Damage: Destroyed
- Flight: Business, Part 91
- Registered owner: Menasha Corp.
- Airworthiness certificate: Standard, Utility

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 42; commercial; airplane ratings: single-engine land; medical: class 2, valid medical--w/ waivers/lim; seat: left; flight hours: 9,690 total, 6,500 in this make and model

## Weather

- Conditions: Visual (VMC), Day
- Wind: 150° at 6 knots
- Visibility: 15 statute miles
- Lowest ceiling: 10,000 ft overcast
- Temperature: 55 °F, dew point 45 °F
- Altimeter: 29.00 inHg
- Observed at: OTH, 16 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 19841105062529A](https://openairdocs.org/incident/19841105062529A), Nov 5, 1984: Hiller UH12E, Lakeside, OR, Destroyed. Aircraft collided with powerlines while transitioning to horizontal flight in remote area.

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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