N591AK - 1989 SIKORSKY S-76B - Complete Aircraft History & Registry Information

Quick Facts & Current Owner

Current Owner
UNICAL AVIATION INC
Location
WALNUT, California
Registration Status
Active until 09-30-2022
Serial Number
760348
Last Seen on Market
Never Listed
Last Seen Airborne
No Recent Activity
Last FAA Action Date
March 2021
Owned Since
September 2019
Location of N591AK in WALNUT, California

About the SIKORSKY S-76B

The Sikorsky S-76B is a prominent model in the line of Sikorsky's S-76 series, a series of medium-sized commercial utility helicopters. The S-76 model initially debuted in the late 1970s, marking Sikorsky's foray into the commercial and corporate helicopter market. Sikorsky designed the S-76 series to meet the evolving needs for a reliable and versatile aircraft that could serve in various roles, including executive transport, offshore oil and gas support, and air ambulance services. The S-76B variant, which emerged as a significant upgrade, was first introduced in 1987. This model came with numerous advancements that enhanced performance, reliability, and comfort. One of the primary motivations for the development of the S-76B was to cater to the high-end corporate and VIP transport market, a niche that required a helicopter capable of offering superior speed, range, and in-flight silence, along with a luxurious cabin experience. The addition of more powerful and efficient twin-turboshaft engines, improved avionics, and a quieter, more aerodynamic airframe were some of the notable upgrades in the S-76B. Additionally, the S-76B's performance in terms of payload capacity, range (with a maximum range of around 470 miles), and cruising speed (approximately 155 knots) set it apart from its competitors. The aircraft became a preferred choice for many corporate fleets and VIP services due to its ability to operate efficiently in various environments and offer a smooth and comfortable ride. Further contributing to its popularity, the S-76B also found a significant role in medical evacuation (Medevac) and search and rescue operations, where its reliability and performance were critical. The Sikorsky S-76B remains a hallmark of innovation in the commercial rotorcraft industry and exemplifies Sikorsky's commitment to meeting the varied demands of its customers with high-quality, dependable aircraft.



Flight History and Activity for N591AK

No flight activity has been observed for this aircraft since 2022.

This could indicate the aircraft is in storage, undergoing maintenance, or operating in areas without flight tracking coverage.

Maintenance and Safety Records

✓ No accidents, incidents, or service difficulty reports on file for this aircraft.

Complete History Timeline

📋

Mar 2021

Registration

Registered to UNICAL AVIATION INC in WALNUT, CA




📋

Sep 2019

Registration

Registered to UNICAL AVIATION INC in WALNUT, CA




📋

Sep 2016

Registration

Registered to ROTARY WING AIR CHARTERS LLC in FARMINGDALE, NY




📋

Mar 2014

Registration

Registered to ROTARY WING AIR CHARTERS LLC in FARMINGDALE, NY




📋

Mar 2011

Registration

Registered to ROTARY WING AIR CHARTERS LLC in GREAT NECK, NY




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Frequently Asked Questions

Who owns N591AK?

N591AK is currently registered to UNICAL AVIATION INC in WALNUT, California.

What type of aircraft is N591AK?

N591AK is a 1989 SIKORSKY S-76B with serial number 760348.

Has N591AK been in any accidents?

No, N591AK has no accidents or incidents on file with the FAA/NTSB.