# N855BA: 1961 Sikorsky UH-34D

- Status: Registration pending
- Airframe: [Sikorsky UH-34D](https://openairdocs.org/model/sikorsky-uh-34d) (registry code 8141818, 14 seats)
- Engine: [Lycoming R-1820 series](https://openairdocs.org/engine/lycoming-r-1820-series) (registry code 41570)
- Data sheets: [TCDS H4SO](https://openairdocs.org/tcds/H4SO) (Orlando Helicopter Airways Inc.) (OpenAirDocs)
- Serial number: 148783
- Year built: 1961
- Type: Rotorcraft
- Engine type: Reciprocating
- Airworthiness: Experimental, exhibition
- Airworthiness date: October 31, 2009
- Mode S code: ABBA05
- Location: [State Center, IA](https://openairdocs.org/faa-place/IA/State%20Center)
- Owner type: Individual
- Owner's area on the map: 42.0181° N, 93.1664° W: Placed by OpenAirDocs at the center of ZIP code 50247, within about 5 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=855BA
- Page: https://openairdocs.org/aircraft/N855BA

From the FAA registry file of October 22, 2026. ADs below are matched by the registry's airframe and engine model codes. They may apply; each AD's applicability can narrow it by serial number, part number or installed equipment. This is not a compliance determination. The registry lists only the engine series, so ADs for every Lycoming R-1820 model are included.

## ADs that may apply (OpenAirDocs): 1 in force

### Matched by airframe (Sikorsky UH-34D)

- [AD 95-26-09](https://openairdocs.org/ad/95-26-09): Main Rotor Shaft · Consolidated Air Crane CH34A, CH34C, HSS-1N/UH-34J and 12 more. Effective Jan 4, 1996

### Matched by engine (Lycoming R-1820 series)

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N855BA.

## FAA accident and incident reports

None matched to N855BA.

## Service difficulty reports

None filed for this aircraft. Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model.

## STCs that may be installed (OpenAirDocs) (4)

Approved for this aircraft's airframe or engine model, in force first, then newest. The registry doesn't record which STCs an aircraft has; its records do.

### Approved for the airframe (Sikorsky UH-34D)

- [STC SH3319NM](https://openairdocs.org/stc/SH3319NM): Installation of Precise Flight Pulselite Control Unit in the Landing /Taxi Recognition Visual Control Light system,. Precise Flight Inc
- [STC SR02704SE](https://openairdocs.org/stc/SR02704SE): Installation and maintenance of the Sunspot 36 and 46 series lights. AeroLED's Holdings LLC
- [STC SR00359BO](https://openairdocs.org/stc/SR00359BO): Installation of Parmetheus Plus LED PAR36 and PAR46 taxi and landing lights. Whelen Aerospace Technologies
- [STC SR02394AK](https://openairdocs.org/stc/SR02394AK): Replacement of existing landing and/or hover light bulbs with Light Emitting Diode (LED) lighting system. Seaplanes North LLC

## Related

- Other Sikorsky UH-34D aircraft: https://openairdocs.org/model/sikorsky-uh-34d/aircraft.md
- The Lycoming R-1820 series engine: https://openairdocs.org/engine/lycoming-r-1820-series.md

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