# Hiller OH-23C

- Type: Aircraft model (FAA registry)
- Registry code: 4360119
- Manufacturer (registry): HILLER
- Model: OH-23C
- Aircraft type: Rotorcraft
- Category: Rotorcraft
- Engines: 1 · Reciprocating
- Seats: 4
- Weight class: Up to 12,499 lb
- Cruise speed: 63 mph
- Certification: Type certificated
- Data sheet: [TCDS 6H2](https://openairdocs.org/tcds/6H2) (OpenAirDocs)
- Holder: Siam Hiller Holdings Inc.
- Registered aircraft: 3
- Page: https://openairdocs.org/model/hiller-oh-23c

Model codes come from the FAA registry's reference file. ADs are matched to them by model name and maker.

## ADs that may apply (OpenAirDocs)

Matched to this model by model name and maker. Each AD's applicability may narrow it by serial number, part number or equipment.

None matched.

## Registered aircraft (3)

- [N234SM](https://openairdocs.org/aircraft/N234SM): [Robertson Kenneth W](https://openairdocs.org/faa-owner/ROBERTSON%20KENNETH%20W), [Sussex, NJ](https://openairdocs.org/faa-place/NJ/Sussex), built 1955, S/N 55-4101
- [N252LG](https://openairdocs.org/aircraft/N252LG): [Alaska Army Aviation Museum Inc](https://openairdocs.org/faa-owner/ALASKA%20ARMY%20AVIATION%20MUSEUM%20INC), [Big Lake, AK](https://openairdocs.org/faa-place/AK/Big%20Lake), built 1973, S/N 55-4096
- [N92672](https://openairdocs.org/aircraft/N92672): [Kramer Danny R](https://openairdocs.org/faa-owner/KRAMER%20DANNY%20R), [Covington, WA](https://openairdocs.org/faa-place/WA/Covington), S/N 832

## NTSB investigations (3)

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 ATL96LA023](https://openairdocs.org/ntsb/ATL96LA023), Dec 18, 1995: Hiller 12C (N234SM), N. Myrtle Beach, SC, substantial damage. Probable cause: The pilot's improper operation of the flight controls during a practice autorotation, and the certified flight instructor's inadequate supervision of the operation
- [NTSB MIA90LA182](https://openairdocs.org/ntsb/MIA90LA182), Sep 11, 1990: Hiller OH-23C (N96168), Fort Pierce, FL, substantial damage. Probable cause: LOSS OF ENGINE POWER DUE TO SEPARATION OF THE PACKING SEAL WHICH SEALS THE DISTRIBUTION ZONE PIPE TO THE INLET MANIFOLD, FOR UNDETERMINED REASONS RESULTING IN A HARD LANDING.
- [NTSB DEN84LA262](https://openairdocs.org/ntsb/DEN84LA262), Aug 22, 1984: Hiller UH-12C (N96168), Kindred, ND, substantial damage

## FAA accident and incident reports (4)

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.

- [Accident 19951218041489A](https://openairdocs.org/incident/19951218041489A), Dec 18, 1995: Hiller OH23G (N234SM), North Myrtle Be, SC, Substantial damage. Practice autorotations. Flared nose high. Tail rotor struck the ground. Two pilots on board.
- [Accident 19900911038949A](https://openairdocs.org/incident/19900911038949A), Sep 11, 1990: Hiller OH23G (N96168), Fort Pierce, FL, Substantial damage. Lost partial power on low level,low RPM power recovery. Chopped tailboom landing. Inlet manifold packing separated.
- [Accident 19840822042909A](https://openairdocs.org/incident/19840822042909A), Aug 22, 1984: Hiller OH23G (N96168), Kindred, ND, Substantial damage. Inadvertently entered transational lift on flare for autorotation landing. Nosed up and tail rotor hit the ground.
- [Incident 19790304010079I](https://openairdocs.org/incident/19790304010079I), Mar 4, 1979: Hiller OH23G (N96168), Minot, ND, Minor damage. Pilot was turning aircraft into wind after maintenance runup and allowed tail rotor to strike parked 9412P

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