N3947C

01 /  Registration

Filed with the Federal Aviation Administration

Every cell below is a literal field from the FAA Aircraft Registry. Click any value to open the FAA registry record for N3947C.

02 /  NTSB Records

Events on file with the National Transportation Safety Board

03 /  Airworthiness Directives

Applicable to SCHWEIZER 269C-1

Federal Aviation Administration airworthiness directives matched to make and model. Each entry links to the Federal Register publication.

• Jul 21, 2017

  Airworthiness Directives; Sikorsky Aircraft Corporation Helicopters (Type Certificate Previously Held by Schweizer Aircraft Corporation)

  We are superseding airworthiness directive (AD) 93-17-13 for Schweizer Aircraft Corporation and Hughes Helicopters, Inc. (now Sikorsky Aircraft Corporation) (Sikorsky) Model TH55A, 269A, 269A-1, 269B, and 269C helicopters. AD 93-17-13 required installing tachometer markings and inspecting the lower coupling driveshaft (driveshaft). This new AD requires repe…

  Federal Register →

• Jan 5, 2017

  Airworthiness Directives; Sikorsky Aircraft Corporation Helicopters (Type Certificate Previously Held by Schweizer Aircraft Corporation)

  We propose to supersede airworthiness directive (AD) 93-17-13 for Schweizer Aircraft Corporation and Hughes Helicopters, Inc. (now Sikorsky Aircraft Corporation) (Sikorsky) Model TH55A, 269A, 269A-1, 269B, and 269C helicopters. AD 93-17-13 requires installing tachometer markings and inspecting the driveshaft. This proposed AD would require recurring inspect…

  Federal Register →

• Nov 10, 2015

  Airworthiness Directives; Sikorsky Aircraft Corporation (Type Certificate Previously Held by Schweizer Aircraft Corporation)

  We are adopting a new airworthiness directive (AD) for Sikorsky Aircraft Corporation (Sikorsky) Model 269A, 269A-1, 269B, 269C, 269C-1, 269D, and TH-55A helicopters. This AD requires repetitively inspecting and lubricating the tail rotor (T/R) driveshaft splined fittings. This AD was prompted by a report that the T/R driveshaft can disconnect due to deterio…

  Federal Register →

• Apr 22, 2015

  Airworthiness Directives; Sikorsky Aircraft Corporation (Type Certificate Previously Held by Schweizer Aircraft Corporation)

  We propose to adopt a new airworthiness directive (AD) for Sikorsky Aircraft Corporation (Sikorsky) Model 269A, 269A-1, 269B, 269C, 269C-1, 269D, and TH-55A helicopters. This proposed AD would require repetitively inspecting and lubricating the tail rotor (T/R) driveshaft splined fittings. This proposed AD is prompted by a report that the T/R driveshaft can…

  Federal Register →

• Jul 6, 2011

  Airworthiness Directives; Schweizer Aircraft Corporation (Schweizer) Model 269A, A-1, B, C, C-1, and TH-55 Series Helicopters

  We are superseding an existing emergency airworthiness directive (EAD) for the specified Schweizer model helicopters that was previously sent to all known U.S. owners and operators. That EAD currently requires removing each locknut and verifying sufficient drag torque and retorquing, or if the locknut does not have sufficient drag torque, replacing the lock…

  Federal Register →

• May 18, 2005

  Airworthiness Directives; Schweizer Aircraft Corporation Model 269C, C-1, and D Helicopters

  This amendment adopts a new airworthiness directive (AD) for the Schweizer Aircraft Corporation (Schweizer) Model 269C, C-1, and D helicopters. This action requires inspecting, modifying, and testing the lateral control trim actuator assembly on certain serial-numbered helicopters. This amendment is prompted by three reported incidents of the inner spring t…

  Federal Register →

• Aug 15, 2000

  Airworthiness Directives; Schweizer Aircraft Corporation Model 269A, 269A-1, 269B, 269C, 269C-1, 269D, and TH-55A Helicopters

  This amendment supersedes an existing airworthiness directive (AD) that applies to Schweizer Aircraft Corporation (Schweizer) Model 269A, 269A-1, 269B, 269C, 269C-1, 269D helicopters. That AD requires inspecting the tail rotor swashplate shaft (shaft) nut for looseness and, if loose, inspecting the shaft for proper size; subsequently inspecting the shafts n…

  Federal Register →

• May 9, 2000

  Airworthiness Directives; Schweizer Aircraft Corporation Model 269A, 269A-1, 269B, 269C, 269C-1, 269D, and TH-55A Helicopters

  This document proposes the supersedure of an existing airworthiness directive (AD) applicable to Schweizer Aircraft Corporation (Schweizer) Model 269A, 269A-1, 269B, 269C, 269C-1, and 269D helicopters. That AD currently requires inspecting the tail rotor swashplate shaft (shaft) nut for looseness and, if loose, inspecting the shaft for proper size; subseque…

  Federal Register →

• Aug 18, 1999

  Airworthiness Directives; Schweizer Aircraft Corporation Model 269A, 269A-1, 269B, 269C, 269C-1, and 269D Helicopters

  This amendment adopts a new airworthiness directive (AD) applicable to Schweizer Aircraft Corporation (SAC) Model 269A, 269A-1, 269B, 269C, 269C-1, and 269D helicopters. This action requires inspecting the tail rotor swashplate shaft (shaft) nut for looseness and, if loose, inspecting the shaft for proper size; subsequently inspecting the shafts not previou…

  Federal Register →

• Feb 16, 1999

  Airworthiness Directives; Schweizer Aircraft Corporation Model 269C-1 Helicopters

  This amendment adopts a new airworthiness directive (AD), applicable to Schweizer Aircraft Corporation Model 269C-1 helicopters, that requires a visual inspection of the bond line between the main rotor blade (blade) abrasion strip (abrasion strip) and the blade for voids, separation, or lifting of the abrasion strip; a visual inspection of the adhesive bea…

  Federal Register →

• Nov 10, 1998

  Airworthiness Directives; Schweizer Aircraft Corporation and Hughes Helicopters, Inc. Model 269C-1 Helicopters

  This document proposes the adoption of a new airworthiness directive (AD) that is applicable to Schweizer Aircraft Corporation and Hughes Helicopters, Inc. (Schweizer) Model 269C-1 helicopters. This proposal would require a visual inspection of the bond line between the main rotor blade (blade) abrasion strip (abrasion strip) and the blade for voids, separa…

  Federal Register →

• Sep 2, 1998

  Airworthiness Directives; Schweizer Aircraft Corporation and Hughes Helicopters, Inc. Model 269A, 269A-1, 269B, 269C, 269D, and TH- 55A Helicopters

  This amendment adopts a new airworthiness directive (AD), applicable to Schweizer Aircraft Corporation and Hughes Helicopters, Inc. Model 269A, 269A-1, 269B, 269C, 269D, and TH-55A helicopters, that requires a visual inspection of the bond line between the main rotor blade abrasion strip (abrasion strip) and the blade for voids, separation, or lifting of th…

  Federal Register →

04 /  Service Difficulty Reports

FAA SDR filings

The FAA does not currently expose a public API for Service Difficulty Reports. We do not back-fill or paraphrase. Search the FAA SDR portal directly →

05 /  Sources & Methodology

Every fact on this page links to its primary US-government source

• FAA Aircraft Registry →

  Refreshed May 5, 2026

  Available

• NTSB CAROL →

  Refreshed May 5, 2026

  Available

• Federal Register (FAA Airworthiness Directives) →

  Refreshed May 5, 2026

  Available

• FAA Service Difficulty Reports →

  Refreshed May 5, 2026

  Unavailable

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