# NTSB CHI84LA263: Hiller UH 12 D, N62362, Deerfield, WI, June 26, 1984

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Limited investigation · Final report
- Date: June 26, 1984, 12:30 local (17:30 UTC)
- Place: Deerfield, WI
- Coordinates: 43.050109, -89.070686 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=43.0501&lon=-89.0707&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 1 minor
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 12671
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI84LA263
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/12671/pdf
- Page: https://openairdocs.org/ntsb/CHI84LA263

## Sequence of events

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

- In flight collision with object, maneuvering - aerial application
  - light condition - sunglare (contributing factor)
  - clearance - not maintained, pilot in command (cause)
  - visual/aural perception, pilot in command (contributing factor)
  - object - wire,static
- Loss of control - in flight, maneuvering - aerial application
- In flight collision with terrain/water, descent - uncontrolled
  - terrain condition - ground

## Analysis

PLT WAS AWARE OF PWR LINES WHICH CROSSED THE FIELD OVER WHICH HE WAS PERFORMING A CALIBRATION TEST. PLT STATED THAT BECAUSE OF SUN GLARE VISUAL CONTACT WITH THE WIRES WAS LOST.THE ACFT CONTACTED THE WIRES.

## Aircraft

- Registration: [N62362](https://openairdocs.org/deregistered/N62362-2014-11-12), registration cancelled 2014-11-12, S/N 1075, built 1958 (OpenAirDocs)
- Reported make and model: HILLER UH 12 D
- Registry model: [Hiller H-23D](https://openairdocs.org/model/hiller-h-23d) (registry code 4360120) (OpenAirDocs)
- Registry engine: [Lycoming VO-435 series](https://openairdocs.org/engine/lycoming-vo-435-series) (registry code 41525, reciprocating) (OpenAirDocs)
- Category: Helicopter
- Serial number: 1075
- Airframe hours: 10280
- Engines: LYCOMING VO-435-A1E reciprocating
- Damage: Substantial damage
- Flight: Aerial application, Part 137
- Registered owner: Blackhalk Airways
- Airworthiness certificate: Special, Restricted (Special)
- Last inspection: 100 hour, March 6, 1984, 17 hours before
- Departed: MSN, MADISON, WI
- Airport: 52C, Flying Hoof, runway 00

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 40; commercial; airplane ratings: single-engine land; instrument ratings: airplane; medical: class 2, valid medical--no waivers/lim.; seat: center; flight hours: 2,022 total, 13 in this make and model, 2,022 as pilot in command, 24 in the last 90 days, 4 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 240° at 12 knots
- Visibility: 10 statute miles
- Lowest ceiling: 25,000 ft broken
- Temperature: 81 °F, dew point 64 °F
- Altimeter: 29.00 inHg
- Observed at: MSN, 12 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 19840626033649A](https://openairdocs.org/incident/19840626033649A), Jun 26, 1984: Hiller H23D, Deerfield, WI, Substantial damage. Helicopter hit powerlines during spray run to test spraying equipment.

## Other investigations on N62362 (2)

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 MIA81FKT31](https://openairdocs.org/ntsb/MIA81FKT31), Mar 8, 1981: Hiller Acft UH-12D (N62362), Miami, FL, substantial damage
- [NTSB MIA76FKT61](https://openairdocs.org/ntsb/MIA76FKT61), Mar 15, 1976: Hiller UH-12D (N62362), Miami, FL, substantial damage

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.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.