# N557AC: 2006 Robinson Helicopter R44 II, registration cancelled 2014-03-25

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: March 25, 2014
- Status when cancelled: First renewal notice
- Airframe: [Robinson Helicopter R44 II](https://openairdocs.org/model/robinson-helicopter-r44-ii) (registry code 7640122)
- Engine: [Lycoming IO-540-AE1A5](https://openairdocs.org/engine/lycoming-io-540-ae1a5) (registry code 41899)
- Data sheets: [TCDS H11NM](https://openairdocs.org/tcds/H11NM), [TCDS 1E4](https://openairdocs.org/tcds/1E4) (OpenAirDocs)
- Serial number: 11387
- Year built: 2006
- Type of aircraft: Rotorcraft
- Engine type: Reciprocating
- Airworthiness: Standard, normal
- Airworthiness date: August 11, 2006
- Certificate issued: June 28, 2010
- Last registry action: July 23, 2011
- Mode S code: A7196F
- Owner when cancelled: [Pollux Aviation Ltd](https://openairdocs.org/faa-owner/POLLUX%20AVIATION%20LTD)
- Location: [Wasilla, AK](https://openairdocs.org/faa-place/AK/Wasilla)
- Owner type: Corporation
- Owner's area on the map: 61.6051° N, 149.4227° W: Placed by OpenAirDocs at the center of ZIP code 99654, within about 6 miles (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N557AC
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=557AC
- Page: https://openairdocs.org/deregistered/N557AC-2014-03-25

From the FAA registry file of October 29, 2026, cancelled registrations. Owners' street addresses are left out. The Mode S code belongs to the N-number, not the airframe.

ADs and bulletins for the Robinson Helicopter R44 II: https://openairdocs.org/model/robinson-helicopter-r44-ii.md

## NTSB investigations (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 WPR13CA064](https://openairdocs.org/ntsb/WPR13CA064), Dec 7, 2012: Robinson Helicopter R44 II (N557AC), Roosevelt Lake, AZ, substantial damage. Probable cause: The pilot's visual disorientation, which resulted in a collision with the lake.

## FAA accident and incident reports (1)

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 20121207027839A](https://openairdocs.org/incident/20121207027839A), Dec 7, 2012: Robinson Helicopter Company R44 II (N557AC), Roosevelt, AZ, Destroyed. The helicopter was descending from the four peaks mountains (approximately 6,000-7000FT) towards Roosevelt lake (approximately 2100FT). The helicopter pilot…

## Other aircraft with N557AC

- [Registered now](https://openairdocs.org/aircraft/N557AC): Eurocopter EC 225 LP, S/N 2900, built 2014

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