N310PB

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 N310PB.

02 /  NTSB Records

Events on file with the National Transportation Safety Board

03 /  Airworthiness Directives

Applicable to ROBINSON HELICOPTER R44

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

• Jun 6, 2025

  Airworthiness Directives; Robinson Helicopter Company Helicopters

  The FAA is superseding Airworthiness Directive (AD) 2024-19-11 for all Robinson Helicopter Company Model R44 and R44 II helicopters. AD 2024-19-11 required visually inspecting a certain flex plate assembly (flex plate) and certain clutch shaft forward yokes (yokes), including each flex plate bolt, and depending on the results, taking corrective actions. AD…

  Federal Register →

• Jan 30, 2025

  Airworthiness Directives; Robinson Helicopter Company Helicopters

  The FAA proposes to supersede Airworthiness Directive (AD) 2024-19-11, which applies to all Robinson Helicopter Company Model R44 and R44 II helicopters. AD 2024-19-11 requires visually inspecting a certain flex plate assembly (flex plate) and certain clutch shaft forward yokes (yokes), including each flex plate bolt, and depending on the results, taking co…

  Federal Register →

• Dec 3, 2024

  Airworthiness Directives; Robinson Helicopter Company

  The FAA is adopting a new airworthiness directive (AD) for certain Robinson Helicopter Company Model R44 and R44 II helicopters. This AD was prompted by several reports of failed clutch actuators and failed rivets attaching the belt tension clutch actuator brackets (bracket) to the fan scroll housing. This AD requires inspecting each bracket and, depending…

  Federal Register →

• Oct 31, 2024

  Airworthiness Directives; Various Helicopters

  The FAA is adopting a new airworthiness directive (AD) for various helicopters modified by certain supplemental type certificates (STCs) that approve the installation of an emergency float kit or an emergency float with a liferaft kit. This AD was prompted by the results of an accident investigation and subsequent reports of difficulty pulling the emergency…

  Federal Register →

• Oct 24, 2024

  Airworthiness Directives; Robinson Helicopter Company Helicopters

  The FAA is adopting a new airworthiness directive (AD) for Robinson Helicopter Company (Robinson Helicopter) Model R22 Beta, R22 Mariner, R44, and R44 II helicopters with a certain governor controller installed. This AD was prompted by reports of engine governor failure, which was a result of water intrusion inside of the governor controller. This AD requir…

  Federal Register →

• Sep 26, 2024

  Airworthiness Directives; Robinson Helicopter Company Helicopters

  The FAA is adopting a new airworthiness directive (AD) for all Robinson Helicopter Company Model R44 and R44 II helicopters. This AD was prompted by reports of a fractured clutch shaft forward yoke (yoke) on the main rotor (M/R) drive due to fatigue cracking. This AD requires visually inspecting a certain part-numbered flex plate assembly (flex plate) and c…

  Federal Register →

• Jul 17, 2024

  Airworthiness Directives; Robinson Helicopter Company Helicopters

  The FAA proposes to adopt a new airworthiness directive (AD) for Robinson Helicopter Company (Robinson Helicopter) Model R22 Beta, R22 Mariner, R44, and R44 II helicopters with a certain governor controller installed. This proposed AD was prompted by reports of engine governor failure, which was a result of water intrusion inside of the governor controller.…

  Federal Register →

• Jun 27, 2024

  Airworthiness Directives; Robinson Helicopter Company Helicopters

  The FAA proposes to adopt a new airworthiness directive (AD) for certain Robinson Helicopter Company Model R44 and R44 II helicopters. This proposed AD was prompted by several reports of failed clutch actuators and failed rivets attaching the belt tension clutch actuator brackets (bracket) to the fan scroll housing. This proposed AD would require inspecting…

  Federal Register →

• Apr 25, 2024

  Airworthiness Directives; Various Helicopters

  The FAA proposes to adopt a new airworthiness directive (AD) for various helicopters modified by certain supplemental type certificates (STCs) that approve the installation of an emergency float kit or an emergency float with liferaft kit. This proposed AD was prompted by the results of an accident investigation and subsequent reports of difficulty pulling…

  Federal Register →

• Feb 28, 2024

  Airworthiness Directives; Robinson Helicopter Company Helicopters

  The FAA proposes to adopt a new airworthiness directive (AD) for all Robinson Helicopter Company Model R44 and R44 II helicopters. This proposed AD was prompted by reports of a fractured clutch shaft forward yoke (yoke) on the main rotor (M/R) drive due to fatigue cracking. This proposed AD would require visually inspecting a certain part-numbered flex plat…

  Federal Register →

• Feb 27, 2024

  Airworthiness Directives; Robinson Helicopter Company Helicopters

  The FAA is adopting a new airworthiness directive (AD) for certain Robinson Helicopter Company Model R22, R22 Alpha, R22 Beta, R22 Mariner, R44, R44 II, and R66 helicopters. This AD was prompted by reports of helicopters losing a tail rotor blade (TRB) tip cap. This AD requires visually checking and inspecting certain part-numbered and serial-numbered TRB t…

  Federal Register →

• Dec 6, 2023

  Airworthiness Directives; Robinson Helicopter Company Helicopters

  The FAA proposes to adopt a new airworthiness directive (AD) for certain Robinson Helicopter Company Model R22, R22 Alpha, R22 Beta, R22 Mariner, R44, R44 II, and R66 helicopters. This proposed AD was prompted by reports of helicopters losing a tail rotor blade (TRB) tip cap. This proposed AD would require visually checking and inspecting certain part-numbe…

  Federal Register →

• Sep 15, 2022

  Airworthiness Directives; Robinson Helicopter Company Helicopters

  The FAA is superseding Airworthiness Directive (AD) 2021-19- 08, which applied to certain Robinson Helicopter Company (Robinson) Model R44 and R44 II helicopters. AD 2021-19-08 required checking each tail rotor blade (blade) for any crack and removing any cracked blade from service. AD 2021-19-08 also required removing all affected blades from service and p…

  Federal Register →

• Jul 13, 2022

  Airworthiness Directives; Robinson Helicopter Company Helicopters

  The FAA proposes to supersede Airworthiness Directive (AD) 2021-19-08, which applies to certain Robinson Helicopter Company (Robinson) Model R44 and R44 II helicopters. AD 2021-19-08 requires checking each tail rotor blade (blade) for any crack and removing any cracked blade from service. AD 2021-19-08 also requires removing all affected blades from service…

  Federal Register →

• Jun 14, 2022

  Airworthiness Directives; Robinson Helicopter Company Helicopters

  The FAA is adopting a new airworthiness directive (AD) for certain Robinson Helicopter Company Model R22 BETA, R44, and R44 II helicopters. This AD was prompted by reports of intermittent or abnormal operation of the engine revolutions per minute (RPM) governor (governor). This AD requires inspecting the engine RPM sensor wiring and installing a wiring kit.…

  Federal Register →

• Sep 7, 2021

  Airworthiness Directives; Robinson Helicopter Company Helicopters

  The FAA is adopting a new airworthiness directive (AD) for certain Robinson Helicopter Company Model R44 and R44 II helicopters. This AD was prompted by reports of cracked tail rotor blades (blades). This AD requires checking each blade for any crack and removing any cracked blade from service. This AD also requires removing all affected blades from service…

  Federal Register →

• Aug 27, 2020

  Airworthiness Directives; Robinson Helicopter Company

  The FAA is superseding Airworthiness Directive (AD) 2019-12-18 for Robinson Helicopter Company (Robinson) Model R44 II helicopters. AD 2019-12-18 required inspecting certain engine air induction hoses (hoses) and replacing any hose that was not airworthy. AD 2019-12-18 also prohibited the installation of certain hoses. This AD continues to require inspectin…

  Federal Register →

• Apr 17, 2020

  Airworthiness Directives; Robinson Helicopter Company Helicopters

  The FAA is adopting a new airworthiness directive (AD) for Robinson Helicopter Company (Robinson) Model R44 and R44 II helicopters. This AD was prompted by reports of cracking in certain tail rotor blades. This AD requires visually checking each tail rotor blade for a crack. The FAA is issuing this AD to address the unsafe condition on these products.

  Federal Register →

• Mar 12, 2020

  Airworthiness Directives; Robinson Helicopter Company Helicopters

  The FAA is adopting a new airworthiness directive (AD) for Robinson Helicopter Company Model R44 and R44 II helicopters with an agricultural spray system installed by Supplemental Type Certificate (STC) SR00286BO (spray system). This spray system is also known as a Simplex Manufacturing Company (Simplex) Model 244 spray system. This AD was prompted by a rep…

  Federal Register →

• Dec 17, 2019

  Airworthiness Directives; Robinson Helicopter Company Helicopters

  The FAA proposes to adopt a new airworthiness directive (AD) for Robinson Helicopter Company Model R44 and R44 II helicopters with an agricultural spray system installed by Supplemental Type Certificate (STC) SR00286BO (spray system). This spray system is also known as a Simplex Manufacturing Company (Simplex) Model 244 spray system. This proposed AD was pr…

  Federal Register →

• Jul 5, 2019

  Airworthiness Directives; Robinson Helicopter Company Helicopters

  The FAA is adopting a new airworthiness directive (AD) for Robinson Helicopter Company (Robinson) Model R44 II helicopters. This AD requires inspecting the engine air induction hose (hose) and replacing any hose that is not airworthy. This AD was prompted by multiple reports of separation between the outer and inner layers of the hoses. The FAA is issuing t…

  Federal Register →

• May 23, 2018

  Airworthiness Directives; Robinson Helicopter Company Helicopters

  We propose to adopt a new airworthiness directive (AD) for Robinson Helicopter Company (Robinson) Model R44 and R44 II helicopters. This proposed AD would require visually checking each tail rotor blade for a crack. This proposed AD is prompted by a report of cracking in certain tail rotor blades. The actions of this proposed AD are intended to address an u…

  Federal Register →

• Jan 4, 2017

  Airworthiness Directives; Robinson Helicopter Company Helicopters

  We are adopting a new airworthiness directive (AD) for Robinson Helicopter Company (Robinson) Model R44, R44 II, and R66 helicopters. This AD requires inspecting the main rotor blade (MRB). This AD was prompted by a determination that some MRBs may have reduced blade thickness due to blending out corrosion. The actions are intended to prevent the unsafe con…

  Federal Register →

• May 27, 2016

  Airworthiness Directives; Robinson Helicopter Company Helicopters

  We propose to adopt a new airworthiness directive (AD) for Robinson Helicopter Company (Robinson) Model R44, R44 II, and R66 helicopters. This proposed AD would require a visual inspection of the main rotor blade (MRB) and either removing or altering it. This proposed AD is prompted by a report that a fatigue crack was found at an MRB's trailing edge and a…

  Federal Register →

• Dec 5, 2014

  Airworthiness Directives; Robinson Helicopter Company Helicopters

  We are superseding Airworthiness Directive (AD) 2011-12-10 for Robinson Helicopter Company (Robinson) Model R22, R22 Alpha, R22 Beta, R22 Mariner, R44, and R44 II helicopters with certain main rotor blades (blade) installed. AD 2011-12-10 required inspecting each blade at the skin-to-spar line for debonding, corrosion, a separation, a gap, or a dent and rep…

  Federal Register →

• Mar 26, 2013

  Airworthiness Directives; Robinson Helicopter Company Helicopters

  We are adopting a new airworthiness directive (AD) for Robinson Helicopter Company (Robinson) Model R44 and R44 II helicopters equipped with emergency floats. This AD requires replacing the inflation valve assembly. This AD was prompted by the failure of the emergency floats to deploy during a factory test because a needle was binding within the inflation v…

  Federal Register →

• Feb 25, 2013

  Airworthiness Directives; Robinson Helicopter Company

  We propose to supersede an existing airworthiness directive (AD) for Robinson Helicopter Company (Robinson) Model R22, R22 Alpha, R22 Beta, R22 Mariner, R44, and R44 II helicopters with certain main rotor blades (blade) installed. The existing AD currently requires inspecting each blade at the skin-to-spar line for debonding, corrosion, a separation, a gap,…

  Federal Register →

• Oct 16, 2012

  Airworthiness Directives; Robinson Helicopter Company Helicopters

  We propose to adopt a new airworthiness directive (AD) for Robinson Helicopter Company (Robinson) Model R44 and R44 II helicopters equipped with emergency floats, which would require replacing the inflation valve assembly. The proposed AD is prompted by failure of the emergency floats to deploy during a factory test because a needle was binding within the i…

  Federal Register →

• Mar 5, 2012

  Airworthiness Directives; Robinson Helicopter Company Helicopters

  The FAA is correcting an airworthiness directive (AD) that was published in the Federal Register. That AD applies to Robinson Helicopter Company (Robinson) Model R22, R22 Alpha, R22 Beta, R22 Mariner, R44, and R44 II helicopters. The paragraph reference in paragraph (b) of the Compliance section is incorrect. Paragraph (b) references paragraph (d), when it…

  Federal Register →

• Jun 17, 2011

  Airworthiness Directives; Robinson Helicopter Company Model (Robinson) R22, R22 Alpha, R22 Beta, R22 Mariner, R44, and R44 II Helicopters

  This amendment supersedes an existing airworthiness directive (AD) for the specified Robinson model helicopters that currently requires a visual inspection for skin separation along the leading edge of blade skin aft of the skin-to-spar bond line on the lower surface of each main rotor blade (blade) and in the tip cap area. The existing AD also requires a "…

  Federal Register →

• Nov 24, 2010

  Airworthiness Directives; Robinson Helicopter Company (Robinson) Model R22, R22 Alpha, R22 Beta, and R22 Mariner Helicopters, and Model R44, and R44 II Helicopters

  This amendment adopts a new airworthiness directive (AD) for Robinson Model R22, R22 Alpha, R22 Beta, and R22 Mariner helicopters, and Model R44 and R44 II helicopters. This AD requires visually inspecting each tail rotor (T/R) control pedal bearing block support (support) for a crack, measuring the thickness of each support, installing support safety tabs…

  Federal Register →

• Jul 15, 2010

  Airworthiness Directives; Robinson Helicopter Company (Robinson) Model R22, R22 Alpha, R22 Beta, and R22 Mariner Helicopters, and Model R44, and R44 II Helicopters

  This document proposes adopting a new airworthiness directive (AD) for Robinson Model R22, R22 Alpha, R22 Beta, and R22 Mariner helicopters, and Model R44 and R44 II helicopters. The AD would require visually inspecting each tail rotor (T/R) control pedal bearing block support (support) for a crack, measuring the thickness of each uncracked support, install…

  Federal Register →

• Jan 3, 2008

  Airworthiness Directives; Robinson Helicopter Company Models R22, R22 Alpha, R22 Beta, R22 Mariner, R44 and R44 II Helicopters

  This amendment adopts a new airworthiness directive (AD) for the specified Robinson Helicopter Company (Robinson) helicopters. This action requires a one-time visual inspection for skin separation along the leading edge of blade skin aft of the skin-to-spar bond line on the lower surface of each blade and in the tip cap area. This action also requires a "ta…

  Federal Register →

• May 23, 2007

  Airworthiness Directives; Robinson Helicopter Company Model R44 and R44 II Helicopters

  This amendment adopts a new airworthiness directive (AD) for Robinson Helicopter Company (Robinson) Model R44 and R44 II helicopters that have a certain seat belt buckle (buckle) assembly installed, that requires removing the buckle assembly and the buckle assembly spacer, and replacing them with airworthy parts. This amendment is prompted by an accident in…

  Federal Register →

• Jan 9, 2007

  Airworthiness Directives; Robinson Helicopter Company Model R44 and R44 II Helicopters

  This document proposes adopting a new airworthiness directive (AD) for robinson Helicopter Company (Robinson) Model R44 and R44 II helicopters that have a certain seat belt buckle (buckle) assembly installed. The AD would require removing the buckle assembly and the buckle assembly spacer, and replacing them with airworthy parts. This proposal is prompted b…

  Federal Register →

• Jul 6, 2004

  Airworthiness Directives; Robinson Helicopter Company Model R44 Helicopters

  This amendment rescinds an existing Airworthiness Directive (AD) for Robinson Helicopter Company (Robinson) Model R44 helicopters, which currently requires revisions to the R44 Rotorcraft Flight Manual (RFM). The RFM revisions limit operations in high winds and turbulence. The RFM revisions also provide information about main rotor stall and mast bumping wi…

  Federal Register →

• Mar 26, 2004

  Airworthiness Directives; Robinson Helicopter Company Model R44 Helicopters

  This amendment proposes rescinding an existing Airworthiness Directive (AD) for Robinson Helicopter Company (Robinson) Model R44 helicopters. That AD currently requires revisions to the R44 Rotorcraft Flight Manual (RFM). The revisions limit operations in high winds and turbulence; provide information about main rotor (M/R) stall and mast bumping, recommend…

  Federal Register →

• Feb 19, 2003

  Airworthiness Directives; Robinson Helicopter Company Model R44 Helicopters

  This amendment adopts a new airworthiness directive (AD) for Robinson Helicopter Company (RHC) Model R44 helicopters that requires inspecting the tail rotor pitch control assembly for roughness or binding of the pitch control bearings (bearings) by hand-rotating the pitch control bearing housing (housing). If the housing does not rotate freely, the AD requi…

  Federal Register →

• Feb 19, 2003

  Airworthiness Directives; Robinson Helicopter Company Model R22 Helicopters

  This amendment adopts a new airworthiness directive (AD) for Robinson Helicopter Company (RHC) Model R22 helicopters that requires inspecting the tail rotor pitch control assembly for roughness or binding of the pitch control bearings (bearings) by hand-rotating the pitch control bearing housing (housing). If the housing does not rotate freely, the AD requi…

  Federal Register →

• Nov 14, 2002

  Airworthiness Directives; Textron Lycoming AEIO-540, IO-540, LTIO-540, O-540, and TIO-540 Series Reciprocating Engines

  This amendment supersedes an emergency airworthiness directive (AD) that was sent previously to all known U.S. owners and operators of Textron Lycoming (T/L) AEIO-540, IO-540, LTIO-540, O-540, and TIO-540 series reciprocating engines. That action requires replacing certain zinc-plated crankshaft gear retaining bolts. This action still requires replacing cer…

  Federal Register →

• Sep 10, 2002

  Airworthiness Directives; Robinson Helicopter Company Model R44 Helicopters

  This document proposes adopting a new airworthiness directive (AD) for Robinson Helicopter Company (RHC) Model R44 helicopters. The AD would require inspecting the pitch control assembly for roughness or binding of the pitch control bearings (bearings) by hand-rotating the pitch control bearing housing (housing). If the housing does not rotate freely, the p…

  Federal Register →

• Sep 10, 2002

  Airworthiness Directives; Robinson Helicopter Company Model R22 Helicopters

  This document proposes adopting a new airworthiness directive (AD) for Robinson Helicopter Company (RHC) Model R22 helicopters. The AD would require inspecting the pitch control assembly for roughness or binding of the pitch control bearings (bearings) by hand-rotating the pitch control bearing housing (housing). If the housing does not rotate freely, the p…

  Federal Register →

• Oct 15, 2001

  Airworthiness Directives; Robinson Helicopter Company Model R44 Helicopters

  This amendment adopts a new airworthiness directive (AD) for Robinson Helicopter Company (RHC) Model R44 helicopters that requires establishing a life limit of 2200 hours time-in-service (TIS) for affected horizontal stabilizers. This amendment is prompted by engineering analysis which indicates that certain vertical-to- horizontal stabilizer attach channel…

  Federal Register →

• Jun 25, 2001

  Airworthiness Directives; Robinson Helicopter Company Model R44 Helicopters

  This document proposes adopting a new airworthiness directive (AD) for Robinson Helicopter Company (RHC) Model R44 helicopters. This proposal would require establishing a life limit of 2200 hours time-in- service (TIS) for affected horizontal stabilizers. This proposal is prompted by engineering analysis, which indicates that certain vertical-to-horizontal…

  Federal Register →

• Apr 19, 2000

  Airworthiness Directives; Robinson Helicopter Company Model R44 Helicopters

  This amendment adopts a new airworthiness directive (AD), applicable to Robinson Helicopter Company (RHC) Model R44 helicopters. This action requires replacing certain serial number (S/N) sprag clutches with an airworthy sprag clutch as specified in this AD. This amendment is prompted by several reports of sprag clutch failures. The actions specified by thi…

  Federal Register →

• Apr 6, 2000

  Airworthiness Directives; Robinson Helicopter Company Model R44 Helicopters

  This amendment adopts a new airworthiness directive (AD), applicable to Robinson Helicopter Company (Robinson) Model R44 helicopters, that requires inspecting the wire harness for contact with the fuel line assembly, removing and replacing the fuel line assembly if chafing has occurred, and installing spiral wrap tubing on the fuel line assembly. This amend…

  Federal Register →

• Nov 3, 1999

  Airworthiness Directives; Robinson Helicopter Company (Robinson) Model R44 Helicopters

  This amendment supersedes an existing airworthiness directive (AD), applicable to Robinson Model R44 helicopters, that currently requires removing and replacing the pilot's cyclic control grip assembly (grip assembly) with an airworthy grip assembly. This amendment requires the same actions as the current AD but would change a part number (P/N) referenced i…

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• Sep 22, 1999

  Airworthiness Directives; Robinson Helicopter Company Model R44 Helicopters

  This document publishes in the Federal Register an amendment adopting Airworthiness Directive (AD) 99-17-17 which was sent previously to all known U.S. owners and operators of Robinson Helicopter Company (RHC) Model R44 helicopters by individual letters. This AD requires, prior to further flight, replacing certain yoke assemblies with airworthy yoke assembl…

  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 →

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  Available

• NTSB CAROL →

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• Federal Register (FAA Airworthiness Directives) →

  Refreshed May 5, 2026

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• FAA Service Difficulty Reports →

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