{"id":"F2006B10653","name":"AD/HU 269/95 - Cyclic Pitch Control","slug":"ad-hu-269-95-cyclic-pitch-control","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":116570,"registerId":"commonwealth-F2006B10653-current","compilationNumber":null,"startDate":"2026-04-03","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/HU 269/95 - Cyclic Pitch Control","content":"---\nmeta-content-style-type: text/css\nmeta-content-type: application/xhtml+xml; charset=utf-8\nmeta-generator: Aspose.Words for .NET 22.10.0\n---\n\n?xml version=\"1.0\" encoding=\"utf-8\" standalone=\"no\"?>\n\nCOMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY\n\nSCHEDULE OF AIRWORTHINESS DIRECTIVES\n\n \n\n![](image.001.png)  Schweizer (Hughes) 269 Series Helicopters\n\n \n\nAD/HU 269/95 Cyclic Pitch Control 7/90 DM\n\n \n\nApplicability: All model 269C helicopters S/N 0004 thru 1456.\n\n \n\nRequirement: Unless previously accomplished, action in accordance with Schweizer Service Bulletin B-237.\n\n \n\nNote: FAA Emergency AD 90-09-07 refers.\n\n \n\nCompliance: Prior to 18 May 1990.\n\n \n\nBackground: The manufacturer has advised that movement of the lower longitudinal cyclic control rod spring attachment clamp, P/N AN735-9, has occurred. Movement of this clamp could restrict cyclic control which could result in loss of helicopter control.\n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n","sortOrder":0}],"analysis":{"flash_summary":{"complexity_score":2,"scope_assessment":{"changed":false,"description":"The AD applies to a defined set of helicopters (model 269C, S/N 0004–1456) and mandates completion of the manufacturer’s Service Bulletin B-237 by a specified date. The text does not indicate an expansion or narrowing beyond that targeted, time-limited corrective action and therefore does not reflect a change in scope from the stated operative requirements in this instrument."},"complexity_factors":["Narrow applicability limited to a single helicopter model and a discrete range of serial numbers (Applicability).","Mandatory compliance tied to a single referenced manufacturer service bulletin rather than detailed steps in the AD (Requirement).","Specific part identified (P/N AN735-9), focusing the technical issue and remedy (Background; Requirement).","Firm, near-term compliance deadline creates scheduling pressure (Compliance).","Cross-reference to an external FAA Emergency AD increases regulatory context but does not add procedural complexity within this AD (Note)."],"plain_english_summary":"This AD mandates that owners/operators of Schweizer (Hughes) 269C helicopters (S/N 0004–1456) must carry out the work in Schweizer Service Bulletin B‑237 to secure the lower longitudinal cyclic control rod spring attachment clamp (P/N AN735‑9). The one‑time action must be completed by 18 May 1990; operators bear costs. The requirement addresses clamp movement that could restrict cyclic control and risk loss of helicopter control."},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a discrete, time-bound safety directive addressing a specific mechanical defect in specific aircraft. It has not expanded beyond its original purpose of mandating a single safety modification."},"complexity_factors":["Single, specific applicability (one helicopter model, defined serial number range)","Single requirement referencing an external technical document (Service Bulletin B-237)","No defined terms section","No conditional logic or nested exceptions","No cross-references to other legislation beyond a note about related FAA directive","Extremely short (under 200 words of substantive content)","Clear, unambiguous compliance deadline"],"plain_english_summary":"This is an **Airworthiness Directive** (a mandatory safety order) issued by Australia's Civil Aviation Safety Authority for certain Schweizer (formerly Hughes) 269C helicopters.\n\n**What it does:**\n- Requires owners and operators of specific helicopter models (serial numbers 0004 through 1456) to carry out a safety fix outlined in **Schweizer Service Bulletin B-237**.\n- The fix addresses a dangerous problem where a clamp on the cyclic pitch control rod can move out of position. If this happens, the pilot could lose control of the helicopter.\n\n**Who it affects:**\n- Anyone who owns or operates a Schweizer 269C helicopter with serial numbers between 0004 and 1456.\n\n**Why it matters:**\n- This is a **critical safety issue**. The cyclic pitch control is what lets the pilot steer the helicopter. If the clamp moves and restricts this control, the helicopter could become uncontrollable and crash.\n- The directive had a hard deadline: **before 18 May 1990**.\n- It references an American FAA Emergency AD, showing this was treated as urgent internationally.\n\n**In short:** If you had one of these helicopters in 1990, you legally had to get this clamp inspected and fixed before flying, or you couldn't fly."}},"importantCases":[],"_links":{"self":"/api/acts/ad-hu-269-95-cyclic-pitch-control","history":"/api/acts/ad-hu-269-95-cyclic-pitch-control/history","analysis":"/api/acts/ad-hu-269-95-cyclic-pitch-control/analysis","conflicts":"/api/acts/ad-hu-269-95-cyclic-pitch-control/conflicts","importantCases":"/api/acts/ad-hu-269-95-cyclic-pitch-control/important-cases","documents":"/api/acts/ad-hu-269-95-cyclic-pitch-control/documents"}}