# NTSB LAX82DA100: Hiller 12E, N99242, Delano, CA, March 9, 1982

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Final report
- Date: March 9, 1982, 07:44 local (15:44 UTC)
- Place: Delano, CA
- Coordinates: 35.780685, -119.229423 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=35.7807&lon=-119.2294&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report March 9, 1983
- Report: Approved by Office Director
- NTSB case key (mKey): 70439
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX82DA100
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/70439/pdf
- Page: https://openairdocs.org/ntsb/LAX82DA100

## 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
  - weather condition - snow covered (contributing factor)
  - clearance - misjudged, pilot in command (cause)
- In flight collision with terrain/water, landing - flare/touchdown
  - collective - uncontrolled, pilot in command (contributing factor)

## Analysis

DURING THE SPRAYING OPERATION OF A FIELD BORDER THE HELICOPTER MAIN ROTOR BLADES CAME IN CONTACT WITH POWER LINES. THE LOOSE WIRE WRAPPED AROUND THE BALLAST ARMS AND THE LANDING WAS ACCOMPLISHED WITH CYCLIC STEERING ONLY.

## Aircraft

- Registration: N99242 (not matched to a registry record)
- Reported make and model: HILLER 12E
- Category: Helicopter
- Serial number: 1719
- Airframe hours: 5780
- Engines: LYCOMING VO-540C2A 305 horsepower reciprocating
- Damage: Substantial damage
- Flight: Aerial application, Part 137
- Operator: San Joaquin Helicopters
- Registered owner: San Joaquin Helicopters
- Departed: DELANO, CA
- Destination: DELANO, CA

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 34; airline transport, commercial; instrument ratings: airplane; medical: class 2, valid medical--no waivers/lim.; flight hours: 5,030 total, 502 in this make and model, 4,400 as pilot in command, 300 in the last 90 days, 2 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 135° at 5 knots
- Visibility: 15 statute miles
- Temperature: 131 °F

## 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 19820309002989A](https://openairdocs.org/incident/19820309002989A), Mar 9, 1982: Hiller UH12E, Delano, CA, Substantial damage. Main rotors struck powerline while spraying edge of field. Crash-landed.

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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