{"id":"F2009L04362","name":"AD/SF340/9 Amdt 2 - Power Control Cable","slug":"ad-sf340-9-amdt-2-power-control-cable","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":82108,"registerId":"commonwealth-F2009L04362-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"SAAB SF340 Series Aeroplanes","sectionType":"division","heading":"SAAB SF340 Series Aeroplanes","content":"### SAAB SF340 Series Aeroplanes\n\n| AD/SF340/9 Amdt 2 | Power Control Cable | 24/2009 |\n| ----------------- | ------------------- | ------- |\n\n| Applicability: | Model SAAB SF340A with power control cables P/No. C82146-1 and/or C82146-2 installed.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              |\n| -------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |\n| Requirement:   | Inspect power control cables in accordance with SAAB Alert Service Bulletin (SB) No. SF340-76A-024 Revision 2, or later approved revisions.Installation of a modified cable in accordance with SAAB SB SF340-76-026, modification No. 1864, or later approved revisions, discontinues the need for the inspection contained in the requirement document.Note: Swedish AD No. 1-024 Rev. B refers, or later approved revisions.                                                                                                                                                                                                                                     |\n| Compliance:    | Unless already accomplished, initially inspect in accordance with the requirement document and thereafter at intervals not exceeding 200 hours TIS unless modified in accordance with SAAB SB SF340-76-026, or later approved revisions.                                                                                                                                                                                                                                                                                                                                                                                                                           |\n|                | This Amendment becomes effective on 28 January 2010.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               |\n| Background:    | The manufacturer received reports of wear in the two-pin joint of the power control cable and its end pieces, resulting in enlargement of the pin holes which could cause the pins to shear. A possibility then exists for the power lever on the PCU to be unintentionally moved into the Beta Range when the power lever in the control quadrant is retarded to flight idle.Amendment 1 was raised because field experience had shown that the original inspection criteria and intervals were not sufficient.This amendment updates the revision status of the Swedish AD and includes terminating action for the inspection requirements contained in this AD. |\n\n![](image.001.png)\n\nWilliam David  \nDelegate of the Civil Aviation Safety Authority\n\n25 November 2009","sortOrder":0},{"sectionNumber":"AD/SF340/9 Amdt 2","sectionType":"part","heading":"AD/SF340/9 Amdt 2","content":"## AD/SF340/9 Amdt 2","sortOrder":1},{"sectionNumber":"Power Control Cable","sectionType":"part","heading":"Power Control Cable","content":"## Power Control Cable","sortOrder":2},{"sectionNumber":"24/2009","sectionType":"part","heading":"24/2009","content":"## 24/2009","sortOrder":3}],"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"},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":true,"description":"Yes. Amendment 2 updates the referenced Swedish AD revision status and adds a clear terminating action (installation of the modified cable per SAAB SB SF340-76-026, mod 1864) that discontinues the recurring inspection requirement. Earlier amendment(s) changed inspection criteria and intervals after field experience showed the original regime was insufficient (Background/Requirement)."},"complexity_factors":["Narrow applicability to specific part numbers (Applicability) increases determinability but requires accurate parts records.","Mandated reliance on external manufacturer service bulletins and later approved revisions (Requirement/Note) creates dependency on SB revision control and regulatory approval.","Recurring inspection interval (200 hours TIS) creates an ongoing operational and maintenance scheduling burden (Compliance).","Presence of a terminating action (installation of modified cable per SB SF340-76-026, mod 1864) introduces a one‑off compliance alternative with upfront cost trade‑off (Requirement).","Safety rationale is specific and technical (pin wear, hole enlargement, pin shear, unintended Beta Range movement) requiring trained inspection and judgment (Background).","Amendment history and cross‑references to Swedish AD revisions mean implementers must track multiple documents and revisions (Background/Requirement)."],"plain_english_summary":"This AD requires operators of SAAB SF340A aeroplanes fitted with power control cables P/No. C82146-1 or C82146-2 to inspect those cables per SAAB Alert SB SF340-76A-024 (Rev 2) and repeat inspections every 200 hours TIS unless the cable is replaced by the modification in SAAB SB SF340-76-026 (mod 1864), which stops the inspection requirement. Effective 28 January 2010.\n\nIt affects aircraft owners/operators who pay inspection labour and potential replacement costs and who must choose between ongoing inspections or a one‑off modification; the AD responds to reported pin‑wear that could allow unintended movement into Beta Range (Background)."},"kimi_summary":{"content_quality":"ok","complexity_score":3,"scope_assessment":{"changed":false,"description":"This AD remains tightly focused on its original purpose: addressing wear in specific power control cables on SAAB SF340A aircraft. Amendment 2 simply updates reference documents and adds a terminating action (the modification option), without expanding to other aircraft systems or cable types."},"complexity_factors":["Short, single-purpose safety directive (approximately 250 words of substantive content)","Only 2 specific part numbers in applicability","Clear compliance pathway: inspect repeatedly OR modify once to terminate","References to external technical documents (SAAB Service Bulletins) rather than embedding full technical specifications","Simple conditional logic: 'Unless already accomplished' and 'unless modified'","No nested definitions or interpretation sections","Single amendment tracking (Amendment 2) with clear background explaining evolution"],"plain_english_summary":"Owners/operators and maintenance organisations of SAAB SF340A aircraft must inspect specific power control cables (P/N C82146-1/‑2) for dangerous wear that can enlarge the two‑pin joint and allow pins to shear, risking unintended reverse thrust in flight. Inspections follow SAAB SB SF340‑76A‑024 Rev 2 every 200 TIS, unless replaced by the modified cable in SB SF340‑76‑026 (Mod 1864), which removes the recurring inspection requirement."}},"importantCases":[],"_links":{"self":"/api/acts/ad-sf340-9-amdt-2-power-control-cable","history":"/api/acts/ad-sf340-9-amdt-2-power-control-cable/history","analysis":"/api/acts/ad-sf340-9-amdt-2-power-control-cable/analysis","conflicts":"/api/acts/ad-sf340-9-amdt-2-power-control-cable/conflicts","importantCases":"/api/acts/ad-sf340-9-amdt-2-power-control-cable/important-cases","documents":"/api/acts/ad-sf340-9-amdt-2-power-control-cable/documents"}}