{"id":"F2006B09919","name":"AD/F50/89 - Cargo Restraint Strap Assemblies","slug":"ad-f50-89-cargo-restraint-strap-assemblies","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":55134,"registerId":"commonwealth-F2006B09919-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"AIRWORTHINESS DIRECTIVE","sectionType":"part","heading":"AIRWORTHINESS DIRECTIVE","content":"# ![](image.001.png)  \nAIRWORTHINESS DIRECTIVE\n\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 CASR 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.\n\n![](image.001.png)  \n\nFokker F50 (F27 Mk 50) Series Aeroplanes","sortOrder":0},{"sectionNumber":"AD/F50/89 Cargo Restraint Strap Assembli","sectionType":"part","heading":"AD/F50/89 Cargo Restraint Strap Assemblies 1/2005","content":"# AD/F50/89 Cargo Restraint Strap Assemblies 1/2005\n\nDM\n\nApplicability: Model F27 Mk. 050 series aircraft, on which cargo restraint strap assemblies part number 1519-MCIDS have been installed per Supplemental Type Certificate (STC) ST01004NY.\n\nRequirement: Revise the Limitations Section of the Aircraft Flight Manual (AFM), and the cargo- loading procedures of the Weight and Balance Manual (WBM), to include the following information (this may be accomplished by inserting a copy of this Directive into the AFM and the WBM):\n\n“Discontinue the use of STC ST01004NY to install Airline Container Manufacturing Company Inc., cargo restraint straps, part number 1519-MCIDS, as the only means of securing cargo to Technical Standard Order (TSO) C90c/NAS3610 pallets. Such cargo restraint straps may continue to be used a supplemental restraints to secure cargo to TSO C90c/NAS3610 pallets, or to the cargo restraint fittings in the aircraft floor, per the aircraft manufacturer’s weight and balance manuals, and within the strap rated load (5,000 lbs).”\n\nNote 1: If the above statement has been incorporated into the general revisions of the AFM and the WBM, the general revisions may be incorporated into the AFM and WBM, and the copy of this Directive may then be removed from the AFM and WBM.\n\nNote 2: FAA AD 2004-22-01 Amdt 39-13829 refers.\n\nCompliance: Within 14 days after 1 December 2004.\n\nThis Airworthiness Directive becomes effective on 1 December 2004.","sortOrder":1}],"analysis":{"flash_summary_failed":{"failed":true,"reason":"Unauthenticated. Configure AI_GATEWAY_API_KEY or use a provider module. Learn more: https://ai-sdk.dev/unauthenticated-ai-gateway","source":"analysis-cron"},"kimi_summary":{"content_quality":"ok","complexity_score":3,"scope_assessment":{"changed":false,"description":"This AD maintains its original narrow scope — addressing a specific unsafe condition with a specific cargo restraint strap part number on a specific aircraft model. It does not expand beyond the original safety issue identified."},"complexity_factors":["Single specific aircraft model and part number scope","Only one main requirement with two implementation options (insert directive or incorporate into general revision)","Two notes providing alternative compliance paths and reference to related FAA directive","Clear compliance date (14 days after effective date)","No nested definitions or extensive cross-referencing within the instrument itself","Relies on external technical documents (AFM, WBM, TSO C90c/NAS3610 standards) but does not define them"],"plain_english_summary":"This AD prohibits using Airline Container Manufacturing Company cargo strap P/N 1519-MCIDS as the sole method to secure cargo on Fokker F50 (F27 Mk 50) aircraft modified under STC ST01004NY. Operators must add a warning to the AFM and WBM within 14 days after 1 December 2004 (by inserting the AD or equivalent wording). It matters because the straps, while suitable as supplemental restraints, were found unsafe as the primary restraint."},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":true,"description":"The AD narrows the operational scope of STC ST01004NY by prohibiting the 1519‑MCIDS strap from being the sole cargo restraint on TSO C90c/NAS3610 pallets and limiting its use to supplemental restraint within a 5,000 lb rated load (Applicability; Requirement). Practically, operators pay compliance costs: they must revise AFM and WBM and alter cargo-securing practices within 14 days (Requirement; Compliance). Decision-making and enforcement lie with CASA/the delegate under subregulation 39.1(1) (preamble)."},"complexity_factors":["Narrow, product-specific applicability: only F27 Mk.050 aircraft with STC ST01004NY are affected (Applicability).","Action is administrative but operationally consequential: requires revision of AFM and WBM or insertion of the AD text (Requirement).","Short compliance window: 14 days after 1 December 2004 creates implementation urgency for operators (Compliance).","Alters approved installation use rather than mandating physical modification: prohibits single-method restraint, allows supplemental use within 5,000 lb rating (Requirement).","Reference to an external regulator’s AD (FAA AD 2004-22-01) may require cross-checking records and technical rationale (Note 2).","Issued under delegated airworthiness authority (subregulation 39.1(1) of CASR 1998), so enforcement and interpretation rest with CASA/delegate (preamble)."],"plain_english_summary":"This Airworthiness Directive orders operators of Fokker F27 Mk.050 aircraft fitted under STC ST01004NY to amend their Aircraft Flight Manual and Weight & Balance Manual so that Airline Container Manufacturing Co. cargo straps part number 1519‑MCIDS are no longer used as the sole means of securing cargo to TSO C90c/NAS3610 pallets. The straps may still be used only as supplemental restraints and within their 5,000 lb rated load; the change must be implemented within 14 days of 1 December 2004."}},"importantCases":[],"_links":{"self":"/api/acts/ad-f50-89-cargo-restraint-strap-assemblies","history":"/api/acts/ad-f50-89-cargo-restraint-strap-assemblies/history","analysis":"/api/acts/ad-f50-89-cargo-restraint-strap-assemblies/analysis","conflicts":"/api/acts/ad-f50-89-cargo-restraint-strap-assemblies/conflicts","importantCases":"/api/acts/ad-f50-89-cargo-restraint-strap-assemblies/important-cases","documents":"/api/acts/ad-f50-89-cargo-restraint-strap-assemblies/documents"}}