{"id":"F2006L00236","name":"AD/SMA/1 - Engine Operating Limitations","slug":"ad-sma-1-engine-operating-limitations","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":58195,"registerId":"commonwealth-F2006L00236-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"SMA Piston Engines","sectionType":"division","heading":"SMA Piston Engines","content":"### SMA Piston Engines\n\n| AD/SMA/1 | Engine Operating Limitations | 3/2006 TX |\n| -------- | ---------------------------- | --------- |\n\n| Applicability: | SMA SR305-230 engines fitted to CESSNA 182 and REIMS-CESSNA F182 aeroplanes.                                                                                                                                                                             |\n| -------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n| Requirement:   | Unless previously accomplished carry out the accomplishment instructions of paragraph 3 of SMA Service Bulletin No SB-C182-71-002 or later DGAC approved revision.Note: DGAC AD F-2006-007 EASA approval No. 2005-6451 dated 23 December 2005 refers.    |\n| Compliance:    | Before further flight following the effective date of this AD.                                                                                                                                                                                           |\n|                | This Airworthiness Directive becomes effective on 31 January 2006.                                                                                                                                                                                       |\n| Background:    | During testing in cold weather conditions, it has been established that engine flameout may occur at low power operation. As a result operating limitations are to be imposed to prevent an engine stall that may cause forced landing of the aeroplane. |\n\n![](image.001.png)  \nJames Coyne  \nDelegate of the Civil Aviation Safety Authority\n\n25 January 2006","sortOrder":0},{"sectionNumber":"AD/SMA/1","sectionType":"part","heading":"AD/SMA/1","content":"## AD/SMA/1","sortOrder":1},{"sectionNumber":"Engine Operating Limitations","sectionType":"part","heading":"Engine Operating Limitations","content":"## Engine Operating Limitations","sortOrder":2},{"sectionNumber":"3/2006 TX","sectionType":"part","heading":"3/2006 TX","content":"## 3/2006 TX","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"},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a targeted safety directive addressing a specific technical defect (cold weather flameout) in a specific engine-aircraft combination. The scope remains precisely limited to its original safety purpose with no evidence of scope creep."},"complexity_factors":["Very short document (under 300 words)","Single, clear applicability criterion (specific engine model in specific aircraft)","Single compliance requirement referencing an external service bulletin","No defined terms section","No conditional logic or nested exceptions","Straightforward temporal compliance ('before further flight')","Only one cross-reference (to the French DGAC AD and EASA approval)"],"plain_english_summary":"This AD orders immediate compliance for Cessna 182/Reims‑Cessna F182 aircraft fitted with SMA SR305‑230 diesel engines: operators must implement the engine manufacturer’s service bulletin and new operating limitations before the next flight (after 31 January 2006). It responds to cold‑weather low‑power flameouts that can cause engine failure at low altitude, so affected owners/operators cannot fly until these mandatory measures are in place."},"flash_summary":{"complexity_score":4,"scope_assessment":{"changed":false,"description":"The instrument confines itself to the named engine‑aircraft combinations and requires executing specified Service Bulletin instructions; it does not indicate an expansion or contraction of the stated applicability. Technical means of compliance are deferred to the referenced Service Bulletin and DGAC‑approved revisions (Applicability/Requirement)."},"complexity_factors":["Narrow, specific applicability to SMA SR305‑230 engines on CESSNA 182 and REIMS‑CESSNA F182 (Applicability).","Immediate mandatory compliance: actions must be done before further flight following the AD (Compliance).","Substantive technical content is delegated to paragraph 3 of an external Service Bulletin, requiring operators to obtain and follow that document (Requirement).","Dependency on DGAC approval and allowance for later DGAC‑approved revisions creates an ongoing external-authority link (Requirement/Note referencing DGAC AD F-2006-007 and EASA approval).","Limited explanation of the exact technical change in the AD text (Background/Requirement), which can create ambiguity about whether the action is a procedural limitation or a hardware/modification requirement.","Cross-jurisdictional references (DGAC, EASA) increase compliance-check complexity for domestic regulators and operators.","Verification and enforcement burden falls on operators and the regulator to confirm Service Bulletin actions were accomplished and remain current (Compliance).","Specified effective date (31 January 2006) fixes an implementation deadline that can affect operational scheduling (Compliance)."],"plain_english_summary":"This Airworthiness Directive requires operators of Cessna 182 and Reims‑Cessna F182 aeroplanes fitted with SMA SR305‑230 piston engines to carry out the actions in paragraph 3 of SMA Service Bulletin SB‑C182‑71‑002 (or a later DGAC‑approved revision) before next flight. It was issued because cold‑weather testing showed a risk of engine flameout at low power, so the directive imposes operating limitations intended to prevent engine stall and forced landing."}},"importantCases":[],"_links":{"self":"/api/acts/ad-sma-1-engine-operating-limitations","history":"/api/acts/ad-sma-1-engine-operating-limitations/history","analysis":"/api/acts/ad-sma-1-engine-operating-limitations/analysis","conflicts":"/api/acts/ad-sma-1-engine-operating-limitations/conflicts","importantCases":"/api/acts/ad-sma-1-engine-operating-limitations/important-cases","documents":"/api/acts/ad-sma-1-engine-operating-limitations/documents"}}