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Public Record · As of May 5, 2026

N734WT

Eurocopter AS350BB View Type →

Status

Registration Valid

Type

Rotorcraft

Engine

Last Cert Issue

02 /  NTSB Records

Events on file with the National Transportation Safety Board

03 /  Airworthiness Directives

Applicable to EUROCOPTER AS350BB

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

  • Feb 1, 2023

    Airworthiness Directives; Airbus Helicopters

    The FAA is adopting a new airworthiness directive (AD) for all Airbus Helicopters Model AS350B, AS350BA, AS350B1, AS350B2, AS350B3, AS350D, AS355E, AS355F, AS355F1, AS355F2, AS355N, and AS355NP helicopters. This AD was prompted by an occurrence reported where during an inspection of a tail rotor head (TRH) pitch change spider, excessive play and excessive w…

    Federal Register →
  • Aug 2, 2022

    Airworthiness Directives; Airbus Helicopters

    The FAA proposes to adopt a new airworthiness directive (AD) for all Airbus Helicopters Model AS350B, AS350BA, AS350B1, AS350B2, AS350B3, AS350D, AS355E, AS355F, AS355F1, AS355F2, AS355N, and AS355NP helicopters. This proposed AD was prompted by an occurrence reported where during an inspection of a tail rotor head (TRH) pitch change spider, excessive play…

    Federal Register →
  • Oct 18, 2021

    Airworthiness Directives; Airworthiness Directives; Airbus Helicopters and Airbus Helicopters Deutschland GmbH (AHD) Helicopters

    The FAA is adopting a new airworthiness directive (AD) for Airbus Helicopters Model AS332C, AS332C1, AS332L, AS332L1, AS350B, AS350BA, AS350B1, AS350B2, AS350B3, AS350D, AS355E, AS355F, AS355F1, AS355F2, AS355N, AS355NP, AS-365N2, AS 365 N3, EC120B, EC130B4, EC130T2, EC 155B, EC155B1, SA-365N, and SA-365N1 helicopters; and Airbus Helicopters Deutschland Gmb…

    Federal Register →
  • Jul 15, 2021

    Airworthiness Directives; Airbus Helicopters (Type Certificate Previously Held by Eurocopter France) Helicopters

    The FAA is superseding Airworthiness Directive (AD) 2003-25-01 which applied to certain Eurocopter France (now Airbus Helicopters) Models AS332C, AS332C1, AS332L, AS332L1, AS350B, AS350BA, AS350B1, AS350B2, AS350B3, AS350D, AS355E, AS355F, AS355F1, AS355F2, and AS355N helicopters. AD 2003-25-01 required modifying and re-identifying the hoist operator contro…

    Federal Register →
  • Jun 16, 2021

    Airworthiness Directives; Airbus Helicopters and Airbus Helicopters Deutschland GmbH (AHD) Helicopters

    The FAA proposes to adopt a new airworthiness directive (AD) for Airbus Helicopters Model AS332C, AS332C1, AS332L, AS332L1, AS350B, AS350BA, AS350B1, AS350B2, AS350B3, AS350D, AS355E, AS355F, AS355F1, AS355F2, AS355N, AS355NP, AS-365N2, AS 365 N3, EC120B, EC130B4, EC130T2, EC 155B, EC155B1, SA-365N, and SA-365N1 helicopters; and Airbus Helicopters Deutschla…

    Federal Register →
  • Apr 28, 2021

    Airworthiness Directives; Airbus Helicopters (Type Certificate Previously Held by Eurocopter France) Helicopters

    The FAA proposes to supersede Airworthiness Directive (AD) 2003-25-01 which applies to certain Eurocopter France (now Airbus Helicopters) Models AS332C, AS332C1, AS332L, AS332L1, AS350B, AS350BA, AS350B1, AS350B2, AS350B3, AS350D, AS355E, AS355F, AS355F1, AS355F2, and AS355N helicopters. AD 2003-25-01 requires modifying and re- identifying the hoist operato…

    Federal Register →
  • Nov 9, 2020

    Airworthiness Directives; Airbus Helicopters

    The FAA is adopting a new airworthiness directive (AD) for Airbus Helicopters Model AS350B, AS350B1, AS350B2, AS350B3, AS350BA, AS350D, AS350D1, AS355E, AS355F, AS355F1, AS355F2, AS355N, AS355NP, EC130B4, and EC130T2 helicopters. This AD requires visually inspecting each main rotor gearbox (MGB) suspension bar attachment bracket bolt for missing bolt heads.…

    Federal Register →
  • Apr 13, 2020

    Airworthiness Directives; Airbus Helicopters

    The FAA proposes to adopt a new airworthiness directive (AD) for Airbus Helicopters Model AS350B, AS350B1, AS350B2, AS350B3, AS350BA, AS350C, AS350D, AS350D1, AS355E, AS355F, AS355F1, AS355F2, AS355N, AS355NP, EC130B4, and EC130T2 helicopters. This proposed AD would require visually inspecting each main rotor gearbox (MGB) suspension bar attachment bracket…

    Federal Register →
  • Nov 6, 2017

    Airworthiness Directives; Airbus Helicopters (Type Certificate Previously Held by Eurocopter France)

    We are superseding Airworthiness Directive (AD) 2013-15-03 for Eurocopter France Model AS350B, AS350BA, AS350B1, AS350B2, AS350B3, AS350C, AS350D, and AS350D1 helicopters. AD 2013-15-03 required inspecting the hydraulic pump drive pulley bearing (bearing) for leaks, rust, overheating, and condition. This new AD adds a requirement to grease the bearing and i…

    Federal Register →
  • Apr 29, 2016

    Airworthiness Directives; Airbus Helicopters (Type Certificate Previously Held by Eurocopter France)

    We propose to supersede airworthiness directive (AD) 2013-15- 03 for Eurocopter France Model AS350B, AS350BA, AS350B1, AS350B2, AS350B3, AS350C, AS350D, and AS350D1 helicopters with a single hydraulic system and a certain hydraulic pump drive assembly installed. AD 2013-15-03 requires inspecting the hydraulic pump drive bearing (bearing) for leaks, rust, ov…

    Federal Register →
  • Mar 4, 2016

    Airworthiness Directives; Airbus Helicopters (Previously Eurocopter France) Helicopters

    We are superseding Airworthiness Directive (AD) 2014-07-52 for certain Airbus Helicopters (previously Eurocopter France) Model AS350B, AS350BA, AS350B1, AS350B2, AS350B3, AS350C, AS350D, AS350D1, AS355E, AS355F, AS355F1, AS355F2, AS355N, and AS355NP helicopters. AD 2014-07- 52 required repetitively inspecting certain reinforcement angles of the rear structu…

    Federal Register →
  • Aug 25, 2015

    Airworthiness Directives; Airbus Helicopters

    We are adopting a new airworthiness directive (AD) for Airbus Helicopters Model AS350B, AS350BA, AS350B1, AS350B2, AS350B3, AS350C, AS350D, AS350D1, AS355E, AS355F, AS355F1, AS355F2, AS355N, AS355NP, EC130B4, and EC130T2 helicopters. This AD requires inspecting the swashplate assembly rotating star to determine whether a ferrule was installed. If a ferrule…

    Federal Register →
  • Aug 20, 2015

    Airworthiness Directives; Airbus Helicopters (Previously Eurocopter France) (Airbus Helicopters) Helicopters

    We are superseding Airworthiness Directive (AD) 2013-21-01 for Eurocopter France Model AS350B, AS350BA, AS350B1, AS350B2, AS350B3, AS350C, AS350D, AS350D1, AS355E, AS355F, AS355F1, AS355F2, AS355N, and AS355NP helicopters. AD 2013-21-01 required certain inspections of each tail rotor pitch horn assembly (pitch horn) for a crack, replacing a cracked pitch ho…

    Federal Register →
  • Jul 23, 2015

    Airworthiness Directives; Airbus Helicopters (Previously Eurocopter France) Helicopters

    We propose to supersede airworthiness directive (AD) 2014-07- 52 for certain Airbus Helicopters (previously Eurocopter France) Model AS350B, AS350BA, AS350B1, AS350B2, AS350B3, AS350C, AS350D, AS350D1, AS355E, AS355F, AS355F1, AS355F2, AS355N, and AS355NP helicopters. AD 2014-07-52 currently requires repetitively inspecting certain reinforcement angles of t…

    Federal Register →
  • Mar 27, 2015

    Airworthiness Directives; Airbus Helicopters (Previously Eurocopter France)

    We propose to adopt a new airworthiness directive (AD) for Airbus Helicopters Model AS350B, AS350BA, AS350B1, AS350B2, AS350B3, AS350C, AS350D, AS350D1, AS355E, AS355F, AS355F1, AS355F2, AS355N, AS355NP, EC130B4, and EC130T2 helicopters. This proposed AD would require inspecting the swashplate assembly rotating star to determine whether a ferrule was instal…

    Federal Register →
  • Jun 10, 2014

    Airworthiness Directives; Airbus Helicopters (Previously Eurocopter France) Helicopters

    We are publishing a new airworthiness directive (AD) for certain Airbus Helicopters (previously Eurocopter France) Model AS350B, AS350BA, AS350B1, AS350B2, AS350B3, AS350C, AS350D, AS350D1, AS355E, AS355F, AS355F1, AS355F2, AS355N, and AS355NP helicopters, which was sent previously to all known U.S. owners and operators of these helicopters. This AD require…

    Federal Register →
  • Jun 9, 2014

    Airworthiness Directives; Airbus Helicopters (Previously Eurocopter France) (Airbus Helicopters) Helicopters

    We propose to supersede airworthiness directive (AD) 2013-21- 01 that currently applies to Eurocopter France Model AS350B, AS350BA, AS350B1, AS350B2, AS350B3, AS350C, AS350D, AS350D1, AS355E, AS355F, AS355F1, AS355F2, AS355N, and AS355NP helicopters. AD 2013-21-01 currently requires certain inspections of each tail rotor pitch horn assembly (pitch horn) for…

    Federal Register →
  • Mar 11, 2014

    Airworthiness Directives; Airbus Helicopters (Type Certificate Previously Held by Eurocopter France) (Airbus Helicopters)

    We are superseding airworthiness directive (AD) 2010-11-51 for Eurocopter France (Eurocopter) Model AS350B, BA, B1, B2, C, D, and D1 helicopters and Model AS355E, F, F1, F2, and N helicopters with certain part-numbered tail gearbox (TGB) control levers installed. AD 2010-11- 51 required repetitive visual inspections of the TGB control lever for a crack and…

    Federal Register →
  • Jan 31, 2014

    Airworthiness Directives; Eurocopter France (Eurocopter) Helicopters

    We are adopting a new airworthiness directive (AD) for Eurocopter Model AS350B, AS350BA, AS350B1, AS350B2, AS350B3, AS350C, AS350D, and AS350D1 helicopters. This AD requires measuring the distance between the end of the main rotor collective pitch lever (collective) locking stud (locking stud) and the locking strip and repairing the locking stud if the clea…

    Federal Register →
  • Nov 22, 2013

    Airworthiness Directives; Eurocopter France Helicopters

    We are adopting a new airworthiness directive (AD) for Eurocopter France (Eurocopter) Model AS350B, AS350BA, AS350B1, AS350B2, AS350B3, AS350C, AS350D, AS350D1, AS355E, AS355F, AS355F1, AS355F2, AS355N, and AS355NP helicopters with sliding doors, except those with modification AL.4262. This AD requires removing from service certain part-numbered nuts and wa…

    Federal Register →
  • Oct 25, 2013

    Airworthiness Directives; Eurocopter France (Eurocopter) Helicopters

    We are adopting a new airworthiness directive (AD) for Eurocopter Model AS350B, AS350BA, AS350B1, AS350B2, AS350B3, AS350C, AS350D, AS350D1, AS355E, AS355F, AS355F1, AS355F2, AS355N, and AS355NP helicopters. This AD requires certain inspections of each tail rotor pitch horn assembly (pitch horn) for a crack, and if there is a crack, before further flight, r…

    Federal Register →
  • Sep 23, 2013

    Airworthiness Directives; Eurocopter France Helicopters

    We propose to supersede an existing airworthiness directive (AD) for Eurocopter France (Eurocopter) Model AS350B3 helicopters with a certain modification (MOD) installed. The existing AD currently requires installing two placards and revising the Rotorcraft Flight Manual (RFM). The AD also requires certain checks and inspecting and replacing, if necessary,…

    Federal Register →
  • Sep 17, 2013

    Airworthiness Directives; Eurocopter France Helicopters

    We are adopting a new airworthiness directive (AD) for Eurocopter France (Eurocopter) Model AS350 and AS355 helicopters, to require inspecting for a crack in the control lever attachment yokes, and if needed, replacing the tail rotor gearbox (TGB). This AD is prompted by improper casting of TGB casing assemblies, which may lead to cracking. A crack in the c…

    Federal Register →
  • Sep 4, 2013

    Airworthiness Directives; Eurocopter France Helicopters

    We are adopting a new airworthiness directive (AD) for certain Eurocopter France (Eurocopter) Model AS350 and AS355 helicopters. This AD requires inspecting the tail rotor control stop screws to determine if they are correctly aligned and adjusting the screws if they are misaligned. This AD is prompted by the discovery of a loose nut on the tail rotor contr…

    Federal Register →
  • Aug 5, 2013

    Airworthiness Directives; Eurocopter France (Eurocopter) Model Helicopters

    We propose to adopt a new airworthiness directive (AD) for Eurocopter Model AS350B, AS350BA, AS350B1, AS350B2, AS350B3, AS350C, AS350D, and AS350D1 helicopters. This proposed AD would require measuring the distance between the end of the main rotor collective pitch lever (collective) locking stud (locking stud) and the locking strip and repairing the lockin…

    Federal Register →
  • Jul 24, 2013

    Airworthiness Directives; Eurocopter France (Eurocopter) Helicopters

    We are adopting a new airworthiness directive (AD) for Eurocopter Model AS350B, AS350BA, AS350B1, AS350B2, AS350B3, AS350C, AS350D, and AS350D1 helicopters with a single hydraulic system and a certain hydraulic pump drive installed. This AD requires inspecting the hydraulic pump drive pulley bearing (pulley bearing) for leaks, rust, overheating, and conditi…

    Federal Register →
  • Jul 16, 2013

    Airworthiness Directives; Eurocopter France Helicopters

    We are publishing a new airworthiness directive (AD) for Eurocopter France Model AS350B, AS350BA, AS350B1, AS350B2, AS350B3, AS350C, AS350D, AS350D1, AS355E, AS355F, AS355F1, AS355F2, AS355N, and AS355NP helicopters. This AD requires, before further flight, determining whether a single hydraulic main or tail rotor servo-control is installed on your helicopt…

    Federal Register →
  • Jun 20, 2013

    Airworthiness Directives; Eurocopter France Helicopters

    We propose to adopt a new airworthiness directive (AD) for Eurocopter France (Eurocopter) Model AS350B, AS350BA, AS350B1, AS350B2, AS350B3, AS350C, AS350D, AS350D1, AS355E, AS355F, AS355F1, AS355F2, AS355N, and AS355NP helicopters with sliding doors, except those with modification AL.4262. This proposed AD would require removing from service certain part-nu…

    Federal Register →
  • Jun 17, 2013

    Airworthiness Directives; Eurocopter France (Eurocopter) Model Helicopters

    We propose to supersede an existing airworthiness directive (AD) for Eurocopter Model AS350B, BA, B1, B2, C, D, and D1 helicopters and Model AS355E, F, F1, F2, and N helicopters with certain part- numbered tail gearbox (TGB) control levers installed. The existing AD currently requires repetitive visual inspections of the TGB control lever for a crack and re…

    Federal Register →
  • May 1, 2013

    Airworthiness Directives; Eurocopter France Helicopters

    We are adopting a new airworthiness directive (AD) for Eurocopter France Model AS350B, AS350BA, AS350B1, AS350B2, AS350B3, AS350C, AS350D, AS350D1, AS355E, AS355F, AS355F1, AS355F2, AS355N, and AS355NP helicopters with certain Aerazur emergency flotation gear attachment brackets (brackets) installed. This AD requires an initial and recurring inspection of t…

    Federal Register →
  • Mar 14, 2013

    Airworthiness Directives; Eurocopter France Helicopters

    We propose to adopt a new airworthiness directive (AD) for certain Eurocopter France (Eurocopter) Model AS350 and AS355 helicopters. This proposed AD would require inspecting the tail rotor control stop screws to determine if they are correctly aligned and adjusting the screws if they are misaligned. This proposed AD is prompted by the discovery of a loose…

    Federal Register →
  • Feb 11, 2013

    Airworthiness Directives; Eurocopter France Helicopters

    We propose to adopt a new airworthiness directive (AD) for Eurocopter France (Eurocopter) Model AS350 and AS355 helicopters, to require inspecting for a crack in the control lever attachment yokes, and if needed, replacing the tail rotor gearbox (TGB). This proposed AD is prompted by improper casting of TGB casing assemblies, which may lead to cracking. A c…

    Federal Register →
  • Jun 18, 2012

    Airworthiness Directives; Eurocopter France Helicopters

    We propose to adopt a new airworthiness directive (AD) for Eurocopter France Model AS350B, AS350BA, AS350B1, AS350B2, AS350B3, AS350C, AS350D, AS350D1, AS355E, AS355F, AS355F1, AS355F2, AS355N, and AS355NP helicopters with certain Aerazur emergency flotation gear attachment brackets (brackets) installed. This proposed AD would require an initial and recurri…

    Federal Register →
  • Nov 10, 2011

    Airworthiness Directives; Eurocopter France Model AS350B, B1, B2, B3, BA, C, D, and D1; and AS355E, F, F1, F2, N, and NP Helicopters

    This amendment supersedes an existing airworthiness directive (AD) for the Eurocopter France (Eurocopter) Model AS350B, B1, B2, B3, BA, C, D, and D1 helicopters; and Model AS355E, F, F1, F2, and N helicopters with certain tail rotor pitch control rods installed. That AD requires a daily check of the tail rotor (T/R) pitch control rod (control rod) outboard…

    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

We render only what the agency publishes. Found a factual error? Report it → We acknowledge within 5 business days and resolve within 14.