# Accident 20130126004689A: Hiller-Tri-Plex Ind.Inc. UH-12B, Okeechobee, FL, January 26, 2013

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: January 26, 2013, 08:05 local time
- Place: Okeechobee, FL
- Airport: Okeechobee County
- Damage: Substantial damage
- Phase of flight: Hover/Holding
- Operating rules: General operating rules (Part 91)
- Location: 27.3761° N, 80.7917° W: From the FAA
- Nearby events: https://openairdocs.org/map.md?lat=27.3761&lon=-80.7917&mi=10
- Aircraft: N9041U, a cancelled registration (https://openairdocs.org/deregistered/N9041U-2018-02-27) (OpenAirDocs)
- Registry model: Hiller-Tri-Plex Ind.Inc. UH-12B (registry code 4360801, https://openairdocs.org/model/hiller-tri-plex-ind-inc-uh-12b) (OpenAirDocs)
- Reported make and model: HILLER-TRI-PLEX IND.INC. UH-12B
- Reported engine: FRANKLIN 6VS-335B
- People aboard: 3
- Fatal injuries: 0
- Other injuries: 1
- Pilot certificates: Airline transport, flight instructor
- Pilot flight hours: 5,000 total, 50 in this make and model, 20 in the last 90 days
- NTSB investigation: [NTSB ERA13LA118](https://openairdocs.org/ntsb/ERA13LA118) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/20130126004689A

## Narrative

As the FAA filed it, in capitals; the FAA replaces private details with ^PRIVACY DATA OMITTED^.

AT APPROXIMATELY 0730 ON SATURDAY JANUARY 26, 2013, A HILLER HELICOPTER DEPARTED A FARM LOCATED AT 504 NW 4TH ST. IN OKEECHOBEE, FL WITH TWO PASSENGERS FOR A HOG HUNTING ADVENTURE. AT APPROXIMATELY 0800 WHILE THE PILOT WAS MANEUVERING THE HELICOPTER TOWARDS A GROUP OF HOGS THE ENGINE RPM STARTED TO DECAY. THE PILOT TRIED TO ADD RPM TO RECOVER, BUT THE RPM CONTINUED ITS DECAY. THE HELICOPTER CONTINUED TO SETTLE WITH POWER. THE FLIGHT WAS BEING OPERATED AT TREE TOP LEVEL PLUS 10 FEET WHEN THIS HAPPENED. THE PILOT MANEUVERED THE HELICOPTER AWAY FROM SOME TALLER TREES AND LANDED IN SOME SMALLER TREES WHERE THE MAIN AND TAIL ROTOR STRUCK THE TREES. ONCE THE HELICOPTER LANDED IN THE TREES IT PITCHED FORWARD AND ROLLED 45 DEGREES TO THE LEFT AND IMPACTED THE GROUND IN AN ALMOST VERTICAL ATTITUDE AND PARTIALLY INVERTED. THE TWO PASSENGERS HAD NO INJURIES AND THE PILOT RECEIVED A BLACK EYE AND STICHES TO HIS LIP

## The NTSB's investigation of this event (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 ERA13LA118](https://openairdocs.org/ntsb/ERA13LA118), Jan 26, 2013: Hiller-Tri-Plex Ind.Inc. UH-12B (N9041U), Okeechobee, FL, substantial damage. Probable cause: The pilot's failure to monitor carburetor temperature and use carburetor heat in conditions conducive to serious carburetor icing, which resulted in partial loss of engine power.

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. For accidents, the NTSB's own investigation is the fuller record.

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