# Hiller-Roberts OH23G

- Type: Aircraft model (FAA registry)
- Registry code: 4362305
- Manufacturer (registry): HILLER-ROBERTS AIRCRAFT INC.
- Model: OH23G
- Aircraft type: Rotorcraft
- Category: Rotorcraft
- Engines: 1 · Reciprocating
- Seats: 4
- Weight class: Up to 12,499 lb
- Cruise speed: 78 mph
- Certification: Type certificated
- Registered aircraft: 0
- Page: https://openairdocs.org/model/hiller-roberts-oh23g

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

None registered with this model now.

## 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 LAX86LA242](https://openairdocs.org/ntsb/LAX86LA242), Jun 6, 1986: Hiller UH-12E (N8503W), Thermal, CA, destroyed, 1 fatal
- [NTSB DEN80FA048](https://openairdocs.org/ntsb/DEN80FA048), Jul 16, 1980: Hiller Acft OH-23G (N603RA), Cutbank, MT, destroyed
- [NTSB FTW78DQD22](https://openairdocs.org/ntsb/FTW78DQD22), Jun 20, 1978: Hiller UH-12E (N603RA), Van Horn, TX, 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.

- [Incident 20130923019269I](https://openairdocs.org/incident/20130923019269I), Sep 23, 2013: Hiller-Roberts Aircraft Inc. OH23G (N603RA), East Wenatchee, WA, Minor damage. During 137 spray operations N603RA, a 1963 Hiller helicopter received minor damage resulting from contact with powerwires while in flight. The damage was…
- [Accident 19860606021929A](https://openairdocs.org/incident/19860606021929A), Jun 6, 1986: Hiller OH23G (N8503W), Thermal, CA, Destroyed. The helicopter impacted the ground during spray operations. Record of careless use of toxic chemicals by operator.
- [Accident 19800716026289A](https://openairdocs.org/incident/19800716026289A), Jul 16, 1980: Hiller OH23G (N603RA), Cut Bank, MT, Substantial damage. Helicopter flew into unknown and unmarked power line during power line patrol.
- [Accident 19780620015779A](https://openairdocs.org/incident/19780620015779A), Jun 20, 1978: Hiller UH12C (N603RA), Van Horn, TX, Substantial damage

## Service difficulty reports (1)

As reported by operators and repair stations, by the model named in the report.

- [SDR 96ZZZX2277](https://openairdocs.org/sdr/96ZZZX2277), Mar 25, 1996: SKID TUBE. CORRODED. INSPECTION FOUND 2 EACH SKID TUBES CORRODED THROUGH BETWEEN SKID SHOE AND TUBE. SUSPECT DUE TO TRAPPED SPRAY CHEMICALS AND WATER FROM WASHING THE AIRCRAFT.

## The same model under other registry codes

Amateur-built copies and renamed makers get their own codes.

- [Hiller OH-23G](https://openairdocs.org/model/hiller-oh-23g): 4 registered aircraft, registry code 4360121
- [Rogerson Hiller OH-23G](https://openairdocs.org/model/rogerson-hiller-oh-23g): 0 registered aircraft, registry code 4366005

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