Aircraft record

N381980 Sikorsky S-76A

DeregisteredUnclaimedSource: FAA, updated Oct 16, 2026

This N-number isn't registered right now. Below is its last known registration, canceled Oct 3, 2019.

Safety record in brief:1 NTSB incident (minor damage, Mar 1986)19 ADs may apply5 service difficulty reports

Registration: Deregistered
Last based in: Oklahoma City, OK; owner city / state
Engine: 250-C30 SER · 650 hp; Allison
Owners: 1; since 1995
NTSB events: 1; minor, 1986
ADs may apply: 19; confirm with A&P
Service reports: 5; since 1995

Registration

FAA Aircraft Registry · Oct 16, 2026

Last registered owner: Federal Aviation Administration
Owner type: Government
City, state: Oklahoma City, OK
Certificate issued: Dec 4, 1995
Canceled: Oct 3, 2019
Airworthiness: Experimental · Research and Development
Airworthiness date: Apr 6, 2018

We never show street addresses, even though they appear in the public FAA file. Individual owners are shown by city and state only.

Airframe & engine

FAA Registry + type data

Airframe

Manufacturer: Sikorsky
Model: S-76A
Year: 1980
Serial number: 760087
Aircraft type: Rotorcraft
Category: Land
Certification: Type Certificated
Seats: 14
Engines: 2
Max takeoff weight: Up to 12,499 lb
Type certificate data sheet: H1NE
Mode S code: A458F0

Engine

Make and model: Allison 250-C30 Ser
Type: Turbo-shaft
Power: 650 hp

Total time and engine hours aren't public. They appear here once the owner adds logbooks.

Ownership history

Ownership history from FAA records

1995 – 2019Federal Aviation AdministrationOklahoma City, OK
Date unknownIndividual ownerdifferent airframe: Curtiss Jn4d S/N 574
Date unknownUS Department Of CommerceWashington, DC · different airframe: Bellanca Ch300 Pacemaker S/N 156

Individual owners are shown by city and state only.

Safety record

NTSB · Oct 15, 2026 · FAA ADs · Oct 16, 2026 · SDRs · Oct 16, 2026

NTSB events (1)

Incident · minor damage

Mar 20, 1986 · Atlantic City, NJ

DURING A PREFLIGHT EXAMINATION OF A SIKORSKY S76 THE INSTRUCTOR AND STUDENT DISCOVERED A HOLE IN THE LEADING EDGE OF THE PYLON ABOVE THE INTERMEDIATE GEAR BOX AND SCUFF MARK ON THE MAIN ROTOR BLADE CAPS. THE INSTRUCTOR AND STUDENT HAD JUST COMPLETED A 2.1 HR TRAINING SESSION THAT CONSISTED OF 18 TAKEOFFS AND LANDINGS, AND WERE ABOUT TO BEGIN A SECOND SESSION WHEN THE DAMAGE WAS DISCOVERED. THE…

Damage: Minor
Injuries: None
Report: NYC86IA109

From NTSB records; matched by serial number.Read NTSB report (search CAROL for NYC86IA109)

Accident history for this model

ADs published since 1998 that may apply (19)

These match the airframe or engine model. Whether each one applies, and whether it's been complied with, depends on serial numbers, equipment and logbook entries. Applicability must be confirmed by a mechanic against the aircraft's records.

AD	Subject	Effective	Applies to
2024-20-07	Various Helicopters	Dec 5, 2024	Airframe (S-76A)Only with: Only helicopters modified by the applicable STC (SR00831LA, SR00780LA, SR01687LA, SR00856LA, SR01855LA, SR02244LA, SR01779LA, SR01459LA, SR01535LA, SR00932LA, SR02049LA, SR02484LA, or SR01902LA).
2017-19-01	Sikorsky Aircraft Corporation Helicopters	Jan 2, 2018	Airframe (S-76A)Certain serial numbers: …–761075. Only with: Main rotor servo pushrod assembly P/N 76400-00034-059, 76400-00014-074, 76400-00014-076, or 76400-00014-077 installed.
2015-26-10	Sikorsky Aircraft Corporation Helicopters	Feb 9, 2016	Airframe (S-76A)Only with: Main gearbox P/N 76351-09000 series, 76351-09500 series, or 76351-09600 series installed that has been repaired in accordance with Sikorsky ORI No. 76350-065 (original or Revision A).
2015-19-51	Sikorsky Aircraft Corporation Helicopters	Nov 10, 2015	Airframe (S-76A)Only with: Main rotor servo input control pushrod assembly P/N 76400-00034-059 or tail rotor pushrod assembly P/N 76400-00014-071 installed.
2013-22-15	Sikorsky Aircraft Corporation (Sikorsky) Helicopters	Dec 13, 2013	Airframe (S-76A)Certain serial numbers: …–760822. Only with: With spindle cuff assembly P/N 76102-08001-043, -045 or -046, or blade fold cuff assembly P/N 76150-09601-041 installed.

Show all 19 ADs

AD	Subject	Effective	Applies to
2012-15-08	Sikorsky Aircraft Corporation Helicopters	Sep 21, 2012	Airframe (S-76A)Only with: Electric rotor brake (ERB) P/N 76363-09100-012 installed.
2010-26-09	Sikorsky Aircraft Corporation (Sikorsky) Model S76A, B, and C Helicopters	Jan 12, 2011	Airframe (S-76A)Only with: LITEF LCR-100 Attitude Heading and Reference System (AHRS) Unit P/N 145130-7100 installed
2010-10-02	Sikorsky Aircraft Corporation Model S-76A, B, and C Helicopters	Jun 17, 2010	Airframe (S-76A)Only with: Main rotor servo actuator Sikorsky P/N 76650-09805-109 or -110 (also marked HR Textron or Woodward HRT P/N 3006760-109 or -110) installed.
2006-16-04	Rolls-Royce Corporation (Formerly Allison Engine Company, Allison Gas Turbine Division…	Sep 7, 2006	Engine (250-C30 SER)
2005-22-01	Sikorsky Aircraft Corporation Model S-76A, B, and C Helicopters	Nov 10, 2005	Airframe (S-76A)Only with: Main rotor hub pilot fitting P/N 76103-08003-101 with 1500 or more hours TIS installed.
2003-04-15	Sikorsky Aircraft Corporation Model S-76A, B, and C Helicopters	Feb 27, 2003	Airframe (S-76A)
2002-15-51	Sikorsky Aircraft Corporation Model S76A, B, and C Helicopters	Oct 18, 2002	Airframe (S-76A)
2001-10-06	Sikorsky Aircraft Corporation Model S-76A, S-76B, and S-76C Helicopters	May 17, 2001	Airframe (S-76A)Only with: Main rotor shaft assembly P/N 76351-09030 (all dash numbers) installed.
94-14-20 R1	Sikorsky Aircraft Corporation Model S-76A Helicopters	Jun 8, 2001	Airframe (S-76A)Only with: Tail rotor blade assembly P/N 76101-05001 (all dash numbers) or 76101-05101 (all dash numbers) installed with more than 130 hours time-in-service.
2001-01-04	Sikorsky Aircraft Corporation Model S-76A, S-76B, and S-76C Helicopters	Feb 2, 2001	Airframe (S-76A)Certain serial numbers: …–760513. Only with: Positioning rod assembly P/N 1945E-31A or 2071-31, or side brace rod end P/N 1945E-235 or 2071-235, installed.
2000-11-52	Sikorsky Aircraft Corporation Model S-76 Series Helicopters	Aug 31, 2000	Airframe (S-76A)
2000-12-09	Sikorsky Aircraft Corporation (Sikorsky) Model S-76A Helicopters	Jul 28, 2000	Airframe (S-76A)Only with: Aero Aire Air Conditioning System P/N S-76A-1-2 installed, modified in accordance with STC SH4680SW.
99-19-30	Sikorsky Aircraft Corp. Model S76A, B, and C Helicopters	Oct 4, 1999	Airframe (S-76A)
99-11-04	Sikorsky Aircraft Model S-76A Helicopters	Jul 9, 1999	Airframe (S-76A)Only with: Turbomeca Arriel 1S1 engines installed in accordance with STC SH568NE, including drawing number 76070-30601.

AI-extracted — verify against original. Matched from each AD's applicability section; ADs replaced by a later AD are left out.

Service Difficulty Reports (5)

Reports of failures and defects that operators and repair stations sent to the FAA since 1995. A report describes one finding; it is not an accident.

Main rotor · blade · delaminatedDec 17, 2008
DURING 3 YEAR MAIN ROTOR BLADE INSP FOUND DELAMINATION IN BLACK MAIN ROTOR BLADE ROOT END. DATA SENT TO MFG FOR EVALUATION. TOTAL DELAMINATED AREA IS 1.472 SQUARE INCHES.
From FAA Service Difficulty Reports; matched by N-number and serial number.
Engine · shaft · crackedApr 2, 2008
OIL LEAK FROM OUTPUT SHAFT NR 1 ENGINE. INSPECTED AREA NO DEFECTS FOUND AT THAT TIME. REPLACED SHAFT SEAL. GROUND OPS AND LEAK CHECK GOOD. AFTER FLIGHT OIL LEAK RETURNED. ON GROUND RUN NO LEAK UNTIL ROTOR WAS RELEASED. OIL LEAK WAS AT OUTPUT SHAFT. FOUND PTO OUTPUT SHAFT CRACKED. REMOVED ENGINE…
From FAA Service Difficulty Reports; matched by N-number and serial number.
Air conditioning and pressurization · a/c pack · burnedMay 12, 2006
AFTER THE DAYS FLIGHT, THE PILOT REPORTED THAT THE AIR CONDITIONING SYSTEM WAS INOPERATIVE. MAINTENANCE WENT TO CHECK THE FREON CHANGE, WHEN THEY OPENED THE BAGGAGE AREA A FAINT SMELL OF BURNT WIRING WAS DETECTED. UPON INSPECTION IT WAS FOUND THAT WIRE A1K925A1130AMP WAS BURNT THRU. THE CURRENT…
From FAA Service Difficulty Reports; matched by N-number and serial number.

Show all 5 reports

Landing gear · bottle · leakingMay 1, 2001
RECEIVED NEW BOTTLE FROM HSI ON 4/27/2001. INSTALLED AND SERVICED IAW MM TO 3000 PSIG. ON MONDAY 4/30/01 FOUND BOTTLE PSIG AT 200. REMOVED BOTTLE AND SUMERGED UNDER WATER, FOUND LEAKING AT VALVE ACTUATING AREA.
From FAA Service Difficulty Reports; matched by N-number and serial number.
Tail rotor drive · blade · delaminatedFeb 28, 2001
ON PRE-FLIGHT INSPECTION FOUND AN AREA OF DELAMINATION AT TAIL ROTOR BLADE STATION 27.00, 4.5 INCHES FROM LEADING EDGE OF TAIL ROTOR BLADE. ITS SIZE ABOUT .7500 INCH. BLADE REMOVED AND SENT FOR REPAIR.
From FAA Service Difficulty Reports; matched by N-number and serial number.

Sources

FAA Aircraft RegistryRegistration, owner city and state, airframe, engineupdated Oct 16, 2026
NTSB accident and incident databaseAccidents and incidents since 1982updated Oct 15, 2026
FAA Airworthiness Directives (Federal Register)ADs published since 1998updated Oct 16, 2026
FAA Service Difficulty ReportsReports since 1995updated Oct 16, 2026

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