{"id":"F2009L03939","name":"AD/B727/220 - Vertical Stabiliser Kickload Beam Shear Tie and Web Post","slug":"ad-b727-220-vertical-stabiliser-kickload-beam-shear-tie-and-web-post","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":81353,"registerId":"commonwealth-F2009L03939-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Boeing 727 Series Aeroplanes","sectionType":"division","heading":"Boeing 727 Series Aeroplanes","content":"### Boeing 727 Series Aeroplanes\n\n| AD/B727/220 | Vertical Stabiliser KickloadBeam Shear Tie and Web Post | 12/2009 |\n| ----------- | ------------------------------------------------------- | ------- |\n\n| Applicability: | All Model 727, 727C, 727-100, -100C, -200 and -200F series aircraft.                                                                                                                                                                                                                                                                     |\n| -------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n| Requirement:   | Action in accordance with the technical requirements of FAA AD 2009-20-03 Amdt 39-16026.Note: Boeing Special Attention 727-55-0093 original issue, or later FAA approved revision, refers.                                                                                                                                               |\n| Compliance:    | As specified in the Requirement document, with a revised effective date of19 November 2009.                                                                                                                                                                                                                                              |\n|                | This Airworthiness Directive becomes effective on 19 November 2009.                                                                                                                                                                                                                                                                      |\n| Background:    | The FAA AD related to this Directive was prompted by a report of cracking of the vertical stabiliser left and right side web posts and shear ties of the kickload beam, which, when coupled with failures in the adjacent structure, could result in structural failure of the vertical stabiliser, and loss of control of the aircraft. |\n\n![](image.001.png)  \nJames Coyne  \nDelegate of the Civil Aviation Safety Authority\n\n30 September 2009","sortOrder":0},{"sectionNumber":"AD/B727/220","sectionType":"part","heading":"AD/B727/220","content":"## AD/B727/220","sortOrder":1},{"sectionNumber":"Vertical Stabiliser KickloadBeam Shear T","sectionType":"part","heading":"Vertical Stabiliser KickloadBeam Shear Tie and Web Post","content":"## Vertical Stabiliser Kickload  \nBeam Shear Tie and Web Post","sortOrder":2},{"sectionNumber":"12/2009","sectionType":"part","heading":"12/2009","content":"## 12/2009","sortOrder":3}],"analysis":{"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a standard, narrow airworthiness directive focused on a specific structural defect in a specific aircraft type. It has not expanded beyond its original safety purpose."},"complexity_factors":["Very short document (under 300 words)","Only 1 defined term implicitly referenced (the FAA AD number)","No conditional logic or nested exceptions — single straightforward requirement","No cross-references to other Australian legislation; only references external FAA technical document","Single compliance date with no alternative methods or phased implementation","Narrow, specific applicability (one aircraft type series)"],"plain_english_summary":"This CASA Airworthiness Directive makes mandatory inspections and repairs of the kickload beam shear tie and web post in the vertical stabiliser of Boeing 727 series aircraft in Australia, following FAA AD 2009-20-03.\n\nIt affects all Australian operators of 727, 727C, 727-100/‑100C and 727-200/‑200F; cracks could lead to tail separation and loss of control. Effective 19 November 2009."},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"The directive adopts the FAA AD requirements for the identified cracking issue and applies them to all listed 727 models. The instrument specifies a revised effective date but does not indicate a change to the technical scope of work required."},"complexity_factors":["Incorporation by reference of FAA AD 2009-20-03 and Boeing service guidance (interpretation and access to external documents required).","Applicability to all Model 727 variants (wide fleet impact and coordination across operators).","Requirement for structural inspections and corrective actions (technical skills, certified maintenance, potential downtime and parts/repair costs).","Revised effective date (compliance scheduling and operational planning).","Safety-critical nature increases regulatory and reporting obligations despite straightforward directive text."],"plain_english_summary":"This directive requires operators of all Boeing 727 series aeroplanes to carry out inspections and any required repairs for cracking of the vertical stabiliser kickload beam shear ties and web posts, by following the technical requirements of FAA Airworthiness Directive 2009-20-03 (and referenced Boeing service guidance). It matters to aircraft operators and maintenance organisations because unchecked cracking, coupled with other structural failures, could lead to loss of the vertical stabiliser and loss of control; the directive is effective 19 November 2009."},"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"}},"importantCases":[],"_links":{"self":"/api/acts/ad-b727-220-vertical-stabiliser-kickload-beam-shear-tie-and-web-post","history":"/api/acts/ad-b727-220-vertical-stabiliser-kickload-beam-shear-tie-and-web-post/history","analysis":"/api/acts/ad-b727-220-vertical-stabiliser-kickload-beam-shear-tie-and-web-post/analysis","conflicts":"/api/acts/ad-b727-220-vertical-stabiliser-kickload-beam-shear-tie-and-web-post/conflicts","importantCases":"/api/acts/ad-b727-220-vertical-stabiliser-kickload-beam-shear-tie-and-web-post/important-cases","documents":"/api/acts/ad-b727-220-vertical-stabiliser-kickload-beam-shear-tie-and-web-post/documents"}}