{"id":"F2021L00242","name":"Approval of an Alternative Means of Compliance (AMOC) with paragraph (i)(2) of Federal Aviation Administration Airworthiness Directive (FAA AD) 2014-05-29","slug":"approval-of-an-alternative-means-of-compliance-amoc-with-paragraph-i-2-of-federal-aviation-administr","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":101352,"registerId":"commonwealth-F2021L00242-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"part","heading":"Application","content":"# 1 Application\n\nThis instrument applies to the registered operator of an aircraft with Continental Motors Inc. (CMI) reciprocating engine(s) with replacement Superior Air Parts, Inc. (SAP) investment cast cylinder assemblies as identified in paragraphs (c)(1), (c)(2) and (c)(3) of FAA AD 2014-05-29 (the AD), as in force immediately before the commencement of this instrument.","sortOrder":0},{"sectionNumber":"2","sectionType":"part","heading":"Approval","content":"# 2 Approval\n\nThe registered operator is approved to use the following means of compliance with paragraph (i)(2) of the AD, for applicable cylinders that have not reached the hourly time in service but have reached the calendar time in service expressed in CMI Service Information Letter SIL98-9 Revision C, as in force on 17 July 2013:\n\n(a) Compliance with SAP Service Bulletin (SB) B14-01 Revision E as in force on 12 August 2020.\n\nNote: All other requirements of the AD must be complied with.","sortOrder":1},{"sectionNumber":"3","sectionType":"part","heading":"Expiry","content":"# 3 Expiry\n\nThis instrument ceases to have effect if either of the following instruments is amended or cancelled:\n\n(a) FAA AD 2014-05-29, Amendment 39-17801; or\n\n(b) SAP SB B14-01 Revision E, dated 12 August 2020.","sortOrder":2}],"analysis":{"flash_summary":{"complexity_score":4,"scope_assessment":{"changed":true,"description":"Relative to the baseline AD requirements, this instrument modifies the compliance pathway for paragraph (i)(2) of FAA AD 2014-05-29 by approving SAP Service Bulletin B14-01 Revision E as an alternative means of compliance for specified cylinders that have reached calendar time but not hourly time in service (see s.2(a)). The instrument explicitly leaves all other AD requirements unchanged (see s.2, Note) and limits its own duration by tying expiry to amendment or cancellation of the referenced FAA AD or SAP SB (see s.3)."},"complexity_factors":["Dependence on multiple external documents and precise versions/dates (FAA AD 2014-05-29, CMI SIL98-9 Rev C, SAP SB B14-01 Rev E) increases interpretive complexity (see s.1, s.2(a), s.3).","Conditional applicability based on a technical distinction between calendar time-in-service and hourly time-in-service requires operators to apply technical maintenance records and judgment (see s.2).","Limited scope tied to aircraft fitted with specified replacement SAP cylinder assemblies, which requires cross-referencing the AD to identify affected parts (see s.1).","Expiry mechanism triggered by amendment or cancellation of either the FAA AD or the SAP service bulletin creates procedural uncertainty and a need to monitor external regulatory documents (see s.3)."],"plain_english_summary":"This instrument lets the registered operator of aircraft with Continental Motors engines and specified Superior Air Parts cast cylinders comply with paragraph (i)(2) of FAA AD 2014-05-29 by following SAP Service Bulletin B14-01 Revision E (instead of the AD’s default) when a cylinder has reached the calendar-time—but not the hourly-time—threshold in CMI SIL98-9 Revision C. The operator is responsible for arranging and paying the work; the approval is narrow, time‑limited, and does not change any other AD requirements."},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a narrow, single-purpose approval instrument. It has not grown beyond its original intent; it does exactly what its title suggests — approve one specific alternative means of compliance for one paragraph of one FAA airworthiness directive affecting specific engine components."},"complexity_factors":["Extremely short — only 3 operative sections plus title","No defined terms section; relies entirely on external documents (FAA AD 2014-05-29, CMI SIL98-9, SAP SB B14-01)","Single conditional trigger: calendar time reached but hourly time not reached","No nested exceptions or complex logical structures","Simple expiry mechanism (automatic cancellation if source documents change)","Heavy dependence on external technical aviation documents, but the legislative instrument itself is minimal"],"plain_english_summary":"This is a very specific aviation safety approval that lets certain aircraft owners use an alternative method to comply with an American airworthiness rule.\n\n**What it does:**\nNormally, Australian aircraft must follow American Federal Aviation Administration (FAA) airworthiness directives (safety rules) exactly. This instrument creates an exception for one specific safety check.\n\n**Who it affects:**\n- **Registered operators** (the people or companies legally responsible for the aircraft) of planes with **Continental Motors engines** that have **Superior Air Parts replacement cylinders**\n- Only applies to cylinders that are old by calendar time (how many years since made) but haven't yet reached their flight hour limit\n\n**The specific problem:**\nThe American rule (FAA AD 2014-05-29) requires certain inspections or replacements. Paragraph (i)(2) normally forces replacement based on calendar time. This approval lets operators follow a different technical document — **Superior Air Parts Service Bulletin B14-01 Revision E** — instead of doing the calendar-time replacement.\n\n**Why it matters:**\nThis saves aircraft owners from having to replace engine cylinders purely because they're old, provided they follow the alternative safety procedures in the Superior Air Parts bulletin. It's a cost-saving measure that maintains safety through an approved alternative method.\n\n**Key limitation:**\nThis approval dies immediately if either the American safety rule or the Superior Air Parts bulletin is changed or cancelled."}},"importantCases":[],"_links":{"self":"/api/acts/approval-of-an-alternative-means-of-compliance-amoc-with-paragraph-i-2-of-federal-aviation-administr","history":"/api/acts/approval-of-an-alternative-means-of-compliance-amoc-with-paragraph-i-2-of-federal-aviation-administr/history","analysis":"/api/acts/approval-of-an-alternative-means-of-compliance-amoc-with-paragraph-i-2-of-federal-aviation-administr/analysis","conflicts":"/api/acts/approval-of-an-alternative-means-of-compliance-amoc-with-paragraph-i-2-of-federal-aviation-administr/conflicts","importantCases":"/api/acts/approval-of-an-alternative-means-of-compliance-amoc-with-paragraph-i-2-of-federal-aviation-administr/important-cases","documents":"/api/acts/approval-of-an-alternative-means-of-compliance-amoc-with-paragraph-i-2-of-federal-aviation-administr/documents"}}