N55H

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 N55H.

02 /  NTSB Records

Events on file with the National Transportation Safety Board

03 /  Airworthiness Directives

Applicable to MCDONNELL DOUGLAS HELICOPTER 369E

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

• Mar 26, 2013

  Airworthiness Directives; Hughes Helicopters, Inc., and McDonnell Douglas Helicopter Systems (Type Certificate Is Currently Held by MD Helicopters, Inc.) Helicopters

  We are adopting a new airworthiness directive (AD) for MD Helicopters, Inc. (MDHI) Model 369D, 369E, 369F, and 369FF helicopters with certain serial-numbered tailboom assemblies. This AD requires measuring the distance between aft longeron rivets and the outboard edge of frame rings. If the distance is too short to ensure a safe flight, the AD requires inst…

  Federal Register →

• Aug 29, 2012

  Airworthiness Directives; Hughes Helicopters, Inc., and McDonnell Douglas Helicopter Systems (Type Certificate Currently Held by MD Helicopters, Inc.) Helicopters

  We propose to adopt a new airworthiness directive (AD) for MD Helicopters, Inc. (MDHI) Model 369D, 369E, 369F, and 369FF helicopters with certain serial-numbered tailboom assemblies. This proposed AD is prompted by the discovery of short-edge margin conditions on two tailboom assemblies. The proposed actions are intended to detect a short-edge margin condit…

  Federal Register →

• Jun 21, 2006

  Airworthiness Directives; Rolls-Royce Corporation (Formerly Allison Engine Company, Allison Gas Turbine Division, and Detroit Diesel Allison) 250-B and 250-C Series Turboprop and Turboshaft Engines

  The FAA is adopting a new airworthiness directive (AD) for Rolls-Royce Corporation 250-B and 250-C series turboprop and turboshaft engines with certain part numbers (P/Ns) of gas producer rotor assembly tie bolts manufactured by EXTEX Ltd., Pacific Sky Supply Inc., Rolls- Royce Corporation (RRC), and Superior Air Parts Inc. This AD requires operators to rem…

  Federal Register →

• Nov 10, 2005

  Airworthiness Directives; Rolls-Royce Corporation (formerly Allison Engine Company, Allison Gas Turbine Division, and Detroit Diesel Allison) 250-B and 250-C Series Turboprop and Turboshaft Engines

  The FAA proposes to adopt a new airworthiness directive (AD) for Rolls-Royce Corporation 250-B and 250-C series turboprop and turboshaft engines with certain part numbers (P/Ns) of gas producer rotor assembly tie bolts manufactured by EXTEX Ltd., Pacific Sky Supply Inc., Rolls-Royce Corporation (RRC), and Superior Air Parts Inc. This proposed AD would requi…

  Federal Register →

• Oct 18, 2005

  Airworthiness Directives; Rolls-Royce Corporation (Formerly Allison Engine Company, Allison Gas Turbine Division, and Detroit Diesel Allison) (RRC) 250-B and 250-C Series Turboshaft and Turboprop Engines

  The FAA proposes to supersede an existing airworthiness directive (AD) for certain RRC 250-B and 250-C series turboshaft and turboprop engines. That AD currently requires a onetime inspection of the fuel nozzle screen for contamination, and if contamination is found, inspection and cleaning of the entire aircraft fuel system before further flight. That AD a…

  Federal Register →

• Dec 1, 2004

  Airworthiness Directives; Rolls-Royce Corporation (Formerly Allison Engine Company, Allison Gas Turbine Division, and Detroit Diesel Allison) (RRC) 250-B and 250-C Series Turboshaft and Turboprop Engines

  The FAA is adopting a new airworthiness directive (AD) for certain RRC 250-B and 250-C series turboshaft and turboprop engines. This AD requires a onetime inspection of the fuel nozzle screen for contamination, and if contamination is found, inspection and cleaning of the entire aircraft fuel system before further flight. This AD also requires replacing the…

  Federal Register →

• May 7, 2004

  Airworthiness Directives; Rolls-Royce Corporation (Formerly Allison Engine Company, Allison Gas Turbine Division, and Detroit Diesel Allison) (RRC) 250-B and 250-C Series Turboshaft and Turboprop Engines

  The FAA proposes to adopt a new airworthiness directive (AD) for certain RRC 250-B and 250-C series turboshaft and turboprop engines. This proposed AD would require a one-time inspection of the fuel nozzle screen for contamination, and if contamination is found, inspection and cleaning of the entire aircraft fuel system before further flight. This proposed…

  Federal Register →

• Apr 25, 2000

  Airworthiness Directives; Allison Engine Company 250-C18 and -C20 Series Turboshaft Engines

  This document proposes to adopt a new airworthiness directive (AD), applicable to Allison Engine Company 250-C18 and -C20 series turboshaft engines. This proposal would require a one-time visual inspection of the fuel nozzle screen for contamination. If contamination is found, this proposal would require, prior to further flight, replacement of the fuel noz…

  Federal Register →

• May 21, 1999

  Airworthiness Directives; McDonnell Douglas Helicopter Systems (MDHS) Model 369E, 369FF, 500N, and 600N Helicopters

  Federal Register →

• Apr 6, 1999

  Airworthiness Directives; McDonnell Douglas Helicopter Systems (MDHS) Model 369E, 369FF, 500N, and 600N Helicopters

  This amendment supersedes an existing priority letter airworthiness directive (AD) 98-17-14, applicable to MDHS Model 369E, 369FF, 500N, and 600N helicopters, that currently requires, within the next 14 calendar days, inspecting each relay receptacle contact socket for correct size of the contact socket holes and replacing incorrectly- sized contact sockets…

  Federal Register →

• Feb 16, 1999

  Airworthiness Directives; McDonnell Douglas Helicopter Systems Model 369D, 369E, 369FF, 369H, MD500N, and MD600N Helicopters

  This amendment adopts a new airworthiness directive (AD), applicable to McDonnell Douglas Helicopter Systems (MDHS) Model 369D, 369E, 369FF, 369H, MD500N, and MD600N helicopters, that requires a one- time visual inspection of certain input shaft coupling assemblies for pitting. This amendment is prompted by three operators' reports of discovering pitting on…

  Federal Register →

• Dec 3, 1998

  Airworthiness Directives; Allison Engine Company 250-B and 250-C Series Turboshaft and Turboprop Engines

  This amendment adopts a new airworthiness directive (AD), applicable to certain Allison Engine Company 250-B and 250-C series turboshaft and turboprop engines, that requires replacing existing beryllium copper main fuel control (MFC) bellows assemblies with Inconel 718 stainless steel welded MFC bellows assemblies. This amendment is prompted by reports of l…

  Federal Register →

• Oct 7, 1998

  Airworthiness Directives; McDonnell Douglas Helicopter Systems Model 369D, 369E, 369FF, 500N, AH-6, and MH-6 Helicopters

  This amendment adopts a new airworthiness directive (AD) that is applicable to McDonnell Douglas Helicopter Systems (MDHS) Model 369D, 369E, 369FF, 500N, AH-6 and MH-6 helicopters. This action requires visual inspections of the overrunning clutch retainer, carrier, housing, and pin for wear from spinning of the bearing outer race. This amendment is prompted…

  Federal Register →

• Sep 3, 1998

  Airworthiness Directives; McDonnell Douglas Helicopter Systems Model 369A, 369D, 369E, 369F, 369FF, 369H, 369HE, 369HM, 369HS, 500N, 600N, and OH-6A Helicopters

  Federal Register →

• Jul 23, 1998

  Airworthiness Directives; McDonnell Douglas Helicopter Systems Model 369A, 369D, 369E, 369F, 369FF, 369H, 369HE, 369HM, 369HS, 500N, 600N, and OH-6A Helicopters

  This amendment supersedes an existing priority letter Airworthiness Directive (AD) 98-03-15, applicable to McDonnell Douglas Helicopter Systems (MDHS) Model 369, 369A, 369D, 369E, 369F, 369FF, 369H, 369HE, 369HM, 369HS, 500N, 600N, and OH-6 helicopters that currently requires an inspection for main rotor blade (blade) cracks and for missing or cracked adhes…

  Federal Register →

• May 15, 1998

  Airworthiness Directives; McDonnell Douglas Helicopter Systems Model 369D, 369E, 369FF, 369H, MD500N, and MD600N Helicopters

  This document proposes the adoption of a new airworthiness directive (AD) that is applicable to McDonnell Douglas Helicopter Systems (MDHS) Model 369D, 369E, 369FF, 369H, MD500N, and MD600N helicopters. This proposal would require a one-time visual inspection of certain input shaft coupling assemblies for pitting. This proposal is prompted by three operator…

  Federal Register →

• Apr 21, 1998

  Airworthiness Directives; McDonnell Douglas Helicopter Systems Model 369 (YOH-6A), 369A (OH-6A), 369D, 369E, 369F, 369FF, 369H, 369HE, 369HM, 369HS, and 500N Helicopters

  This amendment supersedes an existing airworthiness directive (AD), applicable to McDonnell Douglas Helicopter Systems (MDHS) Model 369 (YOH-6A), 369A (OH-6A), 369D, 369E, 369F, 369FF, 369H, 369HE, 369HM, and 369HS helicopters, that currently requires replacing overrunning clutch outer races (outer races) having certain heat treatment numbers. This amendmen…

  Federal Register →

• Sep 19, 1995

  Airworthiness Directives; Flight Trails Helicopters, Inc., Hardpoint Assemblies Installed on McDonnell Douglas Helicopter Systems Model 369D, 369E, 369F, 369FF, and 500N Helicopters

  This document proposes the adoption of a new airworthiness directive (AD) that is applicable to Flight Trails Helicopters, Inc. hardpoint assemblies, installed in accordance with Supplemental Type Certificate (STC) No. SH6080NM, or in accordance with Federal Aviation Administration (FAA) Form 337, ``Major Repair and Alteration,'' approved on McDonnell Dougl…

  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) →

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• FAA Service Difficulty Reports →

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