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Aircraft record

N2634Sikorsky S-76A

DeregisteredUnclaimedSource: FAA, updated Oct 17, 2026

This N-number isn't registered right now. Below is its last known registration, canceled Oct 2, 2000.

Safety record in brief:No NTSB accidents or incidents since 198218 ADs may apply1 service difficulty report

Registration
Deregistered
Last based in
San Francisco, CA
owner city / state
Owners
1
since 1997
NTSB events
None
since 1982
ADs may apply
18
confirm with A&P
Service reports
1
since 1995

Registration

FAA Aircraft Registry · Oct 17, 2026
Last registered owner
Atel Financial Corporation Trustee
Owner type
Corporation
City, state
San Francisco, CA
Certificate issued
Nov 25, 1997
Canceled
Oct 2, 2000

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
Serial number
76007
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
A28D06

Engine

Type
Turbo-shaft

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

Ownership history

Ownership history from FAA records
  1. 1997 – 2000Atel Financial Corporation TrusteeSan Francisco, CA
  2. 1946Beech Aircraft Corpdifferent airframe: Beechcraft D18s S/N 137
  3. 1938 – 1927Individual ownerCheyenne, WY · different airframe: Lincoln Standard Aircraft Standard J1 S/N 70

Individual owners are shown by city and state only.

Safety record

NTSB · Oct 15, 2026 · FAA ADs · Oct 17, 2026 · SDRs · Oct 16, 2026

NTSB events (0)

No NTSB accidents or incidents found for this airframe since 1982.

Accident history for this model

ADs published since 1998 that may apply (18)

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.

ADSubjectEffectiveApplies to
2024-20-07Various HelicoptersDec 5, 2024Airframe (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).
2017-19-01Sikorsky Aircraft Corporation HelicoptersJan 2, 2018Airframe (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.
2015-26-10Sikorsky Aircraft Corporation HelicoptersFeb 9, 2016Airframe (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).
2015-19-51Sikorsky Aircraft Corporation HelicoptersNov 10, 2015Airframe (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.
2013-22-15Sikorsky Aircraft Corporation (Sikorsky) HelicoptersDec 13, 2013Airframe (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 18 ADs
ADSubjectEffectiveApplies to
2012-15-08Sikorsky Aircraft Corporation HelicoptersSep 21, 2012Airframe (S-76A)Only with: Electric rotor brake (ERB) P/N 76363-09100-012 installed.
2010-26-09Sikorsky Aircraft Corporation (Sikorsky) Model S76A, B, and C HelicoptersJan 12, 2011Airframe (S-76A)Only with: LITEF LCR-100 Attitude Heading and Reference System (AHRS) Unit P/N 145130-7100 installed
2010-10-02Sikorsky Aircraft Corporation Model S-76A, B, and C HelicoptersJun 17, 2010Airframe (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.
2005-22-01Sikorsky Aircraft Corporation Model S-76A, B, and C HelicoptersNov 10, 2005Airframe (S-76A)Only with: Main rotor hub pilot fitting P/N 76103-08003-101 with 1500 or more hours TIS installed.
2003-04-15Sikorsky Aircraft Corporation Model S-76A, B, and C HelicoptersFeb 27, 2003Airframe (S-76A)
2002-15-51Sikorsky Aircraft Corporation Model S76A, B, and C HelicoptersOct 18, 2002Airframe (S-76A)
2001-10-06Sikorsky Aircraft Corporation Model S-76A, S-76B, and S-76C HelicoptersMay 17, 2001Airframe (S-76A)Only with: Main rotor shaft assembly P/N 76351-09030 (all dash numbers) installed.
94-14-20 R1Sikorsky Aircraft Corporation Model S-76A HelicoptersJun 8, 2001Airframe (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.
2001-01-04Sikorsky Aircraft Corporation Model S-76A, S-76B, and S-76C HelicoptersFeb 2, 2001Airframe (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.
2000-11-52Sikorsky Aircraft Corporation Model S-76 Series HelicoptersAug 31, 2000Airframe (S-76A)
2000-12-09Sikorsky Aircraft Corporation (Sikorsky) Model S-76A HelicoptersJul 28, 2000Airframe (S-76A)Only with: Aero Aire Air Conditioning System P/N S-76A-1-2 installed, modified in accordance with STC SH4680SW.
99-19-30Sikorsky Aircraft Corp. Model S76A, B, and C HelicoptersOct 4, 1999Airframe (S-76A)
99-11-04Sikorsky Aircraft Model S-76A HelicoptersJul 9, 1999Airframe (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 (1)

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 · crackedNov 11, 1998

    DURING DAILY INSPECTION, FOUND TIP CAP DOUBLER CRACKED. WHEN TIP CAP WAS REMOVED FOR REPLACEMENT, AFT TIP CAP ANCHOR NUT SUPPORT CAME UNBONDED. THIS BLADE HAD 720.4 HOURS ON IT SINCE IT HAD BEEN TO OVERHAUL FACILITY FOR C-BLOCK MODIFICATION.

    From FAA Service Difficulty Reports; matched by N-number and serial number.

Related aircraft

Show all 8 related aircraft
All 19 registered Sikorsky S-76A aircraft

Sources

  • FAA Aircraft RegistryRegistration, owner city and state, airframe, engineupdated Oct 17, 2026
  • NTSB accident and incident databaseAccidents and incidents since 1982updated Oct 15, 2026
  • FAA Airworthiness Directives (Federal Register)ADs published since 1998updated Oct 17, 2026
  • FAA Service Difficulty ReportsReports since 1995updated Oct 16, 2026

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