{"id":"F2006B09720","name":"AD/F27/153 - Aircraft Flight Manual - Propeller Flight Idle","slug":"ad-f27-153-aircraft-flight-manual-propeller-flight-idle","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":115900,"registerId":"commonwealth-F2006B09720-current","compilationNumber":null,"startDate":"2026-04-03","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"AIRWORTHINESS DIRECTIVE","sectionType":"part","heading":"AIRWORTHINESS DIRECTIVE","content":"# AIRWORTHINESS DIRECTIVE\n\n![](image.002.png)\n\n![](image.002.png)  \nFor the reasons set out in the background section, the CASA delegate whose signature appears below issues the following Airworthiness Directive (AD) under subregulation 39.1 (1) of CAR 1998. The AD requires that the action set out in the requirement section (being action that the delegate considers necessary to correct the unsafe condition) be taken in relation to the aircraft or aeronautical product mentioned in the applicability section: (a) in the circumstances mentioned in the requirement section; and (b) in accordance with the instructions set out in the requirement section; and (c) at the time mentioned in the compliance section.","sortOrder":0},{"sectionNumber":"AD/F27/153 Aircraft Flight Manual - Prop","sectionType":"part","heading":"AD/F27/153 Aircraft Flight Manual - Propeller Flight Idle 11/2000","content":"# AD/F27/153 Aircraft Flight Manual \\- Propeller Flight Idle 11/2000\n\nDM\n\nApplicability: Fokker F27 Mks 100, 200, 300, 400, 500, 600 and 700 series aircraft.\n\nRequirement: Verify the affected Aircraft Flight Manual (AFM) procedures agree with Fokker Manual Change Notification \\- Operational (MNCO) F27-005 dated February 14, 1998.\n\nCorrect any AFM that does not comply with MNCO F27-005. This can be accomplished by inserting a copy of MNCO F27-005 into the AFM.\n\nNote: RLD AD 2000-100 also refers.\n\nCompliance: No later than 18 October 2000.\n\nThis Airworthiness Directive becomes effective on 4 October 2000.\n\nBackground: This Directive is prompted by incidents that occurred on various turboprop aircraft types where the power levers have been inadvertently placed into the Beta (ground) range in flight. Two incidents are known to have occurred on F27 aircraft. The action prescribed will ensure that an associated AFM revision has been incorporated into the AFM.\n\n![Signature of Eugene Paul Holzapfel, Delegate of the Civil Aviation Safety Authority.](image.003.png)  \n\nEugene Paul Holzapfel\n\nDelegate of the Civil Aviation Safety Authority 25 September 2000\n\n![](image.002.png)  \n\nThe above AD is notified in the Commonwealth of Australia Gazette on 4 October 2000.","sortOrder":1}],"analysis":{"flash_summary_failed":{"failed":true,"reason":"A positive credit balance is required for all requests, including BYOK, so fallback providers remain available. Add credits at https://vercel.com/d?to=%2F%5Bteam%5D%2F%7E%2Fai%3Fmodal%3Dtop-up to continue.","source":"analysis-cron"},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This AD maintains its original narrow scope. It addresses a specific safety issue (inadvertent Beta range selection in flight) for a specific aircraft type (Fokker F27) with a specific, limited remedy (AFM verification/update). There is no evidence of scope creep or expansion beyond the original safety purpose."},"complexity_factors":["Very short document (under 400 words)","Only 1 defined term (MNCO - Manual Change Notification - Operational)","Single, clear applicability criterion (specific aircraft models)","Straightforward compliance action (verify and insert document if needed)","No cross-references to other legislation (only a note referencing a related Dutch AD)","Simple temporal structure (one fixed compliance date, one effective date)","No conditional logic or nested exceptions"],"plain_english_summary":"This AD mandates that operators of Fokker F27 aircraft verify their Aircraft Flight Manual contains MNCO F27-005 (14 Feb 1998) and insert that update if missing. It’s a compulsory safety order.\n\nIt matters because two F27s experienced inadvertent selection of Beta (ground-only) power in flight — a hazardous condition. All affected operators must comply by 18 October 2000 or the aircraft cannot legally fly."},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"Scope is consistent with the directive's stated purpose: require Fokker F27 operators to incorporate MNCO F27-005 into AFMs for the listed marks to address known incidents of in-flight Beta-range lever selection (Applicability; Requirement; Background). The instrument does not indicate any expansion or narrowing beyond that remedial objective."},"complexity_factors":["Narrow applicability: only Fokker F27 Mks 100, 200, 300, 400, 500, 600 and 700 series (Applicability).","Single corrective action: verify AFM agrees with MNCO F27-005 and insert the MNCO if not (Requirement: Verify the affected Aircraft Flight Manual ... MNCO F27-005 dated February 14, 1998).","Fixed deadline: specific compliance date limits scheduling flexibility (Compliance: No later than 18 October 2000).","Low technical alteration: remedy is documentary (insert MNCO) rather than hardware modification (Requirement).","Legal basis and enforceability: issued under subregulation 39.1(1) of CAR 1998 and signed by CASA delegate (front matter; signature).","Cross-reference to related directive may require coordination (Note: RLD AD 2000-100 also refers).","Potential for interpretive judgment when determining whether AFM 'agrees with' the MNCO could impose a modest compliance assessment burden (Requirement).","Background limited to a small number of incidents (Background: two incidents on F27) — scope is targeted but safety-driven."],"plain_english_summary":"This AD requires operators of Fokker F27 (Mks 100–700) to check their Aircraft Flight Manual (AFM) includes Fokker Manual Change Notification Operational (MNCO) F27-005 (14 Feb 1998) and, if it does not, to insert that MNCO by 18 October 2000. CASA issued the directive under subregulation 39.1(1) to address incidents where power levers were inadvertently placed into the Beta (ground) range in flight.\n\nOperators bear the cost and administrative task of updating and documenting AFMs; CASA sets the compliance timing and the procedural requirement."}},"importantCases":[],"_links":{"self":"/api/acts/ad-f27-153-aircraft-flight-manual-propeller-flight-idle","history":"/api/acts/ad-f27-153-aircraft-flight-manual-propeller-flight-idle/history","analysis":"/api/acts/ad-f27-153-aircraft-flight-manual-propeller-flight-idle/analysis","conflicts":"/api/acts/ad-f27-153-aircraft-flight-manual-propeller-flight-idle/conflicts","importantCases":"/api/acts/ad-f27-153-aircraft-flight-manual-propeller-flight-idle/important-cases","documents":"/api/acts/ad-f27-153-aircraft-flight-manual-propeller-flight-idle/documents"}}