1、Designation:F235405b(Reapproved 2013)Standard Specification forContinued Airworthiness System for Lighter-Than-Air LightSport Aircraft1This standard is issued under the fixed designation F2354;the number immediately following the designation indicates the year oforiginal adoption or,in the case of r
2、evision,the year of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This specification covers continued airworthiness re-quirements for the manufacture of lighter-than-air
3、 light sportaircraft and their qualification for possible certification.1.2 The values stated in SI units are to be regarded as thestandard.The values given in parentheses are for informationonly.1.3 This standard does not purport to address all of thesafety concerns,if any,associated with its use.I
4、t is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2.Terminology2.1 Definitions:2.1.1 airshipengine-driven lighter-than-air aircraft thatcan be steered.2.1.2 balloonlighter-
5、than-air aircraft that is not engine-driven,and that sustains flight through the use of either gasbuoyancy or an airborne heater,or both.2.1.3 lighter-than-air aircraftaircraft that can rise andremain suspended by using contained gas weighing less thanthe air that is displaced by the gas.2.1.3.1 Dis
6、cussionAirships may include dynamic lift thatderive as much as 30%lift from other than buoyancy.3.Current Operators List Documentation3.1 The manufacturer shall maintain a list of registeredaircraft owners that includes all aircraft in service by serialnumber,registration number,together with the na
7、me andaddress of the owner.3.2 In cases where the appropriate Civil Aviation Authoritymaintains records of registered owners sufficient for trackingaircraft and the manufacturer has access to such records,themanufacturer may elect to utilize such records for complyingwith this section.4.Monitoring,I
8、nvestigation,and Remedial Action4.1 The manufacturer shall maintain contact with dealersand owners who report incidents or other situations that mightrelate to safety,operations,or maintenance of aircraft producedand placed in service.The manufacturer will promptly inves-tigate all reported failures
9、,malfunctions,or defects and de-velop the appropriate corrective action.The magnitude of theservice problem will define the subsequent publication to theoperators.5.Safety Directives5.1 A safety directive will be distributed to all operatorswhen an unsafe condition is found to exist that may also ex
10、istin other aircraft in the fleet.When a safety directive is issued,immediately provide a copy to the appropriate airworthinessauthority.A safety directive will require an action(change tooperational limitations,an inspection,a replacement part or adesign change,etc.)to specifically address an unsaf
11、e conditionwithin a stated time frame.This required action is mandatoryand must be performed and documented in the individualaircraft logs in order for that aircraft to maintain compliancewith ASTM standards and continue to operate as an LSAaircraft.Noncompliance with any safety of flight bulletin w
12、ill,at the minimum,result in the aircraft being put in theexperimental category.5.1.1 Manufacturers must have in place a process to gatherand analyze service problems so that safety of flight issues canbe addressed in a timely manner.Distribution of printed formsor making E-mail templates available
13、is recommended.Theprinted form or template(or equivalent method)will provide tothe operator a listing of critical malfunctions or failures thatmust be reported to the manufacturer in an expeditious manner.5.1.2 Manufacturers must document all service difficultyreports and maintain a record of the an
14、alysis justifying the levelof response.6.Service Bulletin Documents6.1 Service bulletins will be distributed to all operators bythe manufacturer when no unsafe condition exists that could1This specification is under the jurisdiction of ASTM Committee F37 on LightSport Aircraft and is the direct resp
15、onsibility of Subcommittee F37.60 on Lighterthan Air.Current edition approved June 1,2013.Published September 2013.Originallyapproved in 2004.Last previous edition approved in 2010 as F2354 05b(2010).DOI:10.1520/F2354-05BR13.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshoh
16、ocken,PA 19428-2959.United States1 lead to an unairworthy condition,but a service problem hasbecome repetitive for which the manufacturer has developed adesign change or service procedure change that will contributeto the improvement or convenience of operation or mainte-nance of the aircraft.Service bulletin changes are not manda-tory to maintain the aircrafts compliance with ASTM stan-dards.7.Service Letter Documents7.1 The manufacturer will issue service letters on anysubject that is consider
