{"id":"F2009L00754","name":"AD/CESSNA 180/95 - Intercooler and Associated Hoses","slug":"ad-cessna-180-95-intercooler-and-associated-hoses","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":77715,"registerId":"commonwealth-F2009L00754-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Cessna 180, 182 and Wren 460 Series Aero","sectionType":"division","heading":"Cessna 180, 182 and Wren 460 Series Aeroplanes","content":"### Cessna 180, 182 and Wren 460 Series Aeroplanes\n\n| AD/CESSNA 180/95 | Intercooler and Associated Hoses | 4/2009 DM |\n| ---------------- | -------------------------------- | --------- |\n\n| Applicability: | Cessna Models 182Q and 182R aeroplanes equipped with:Societé de Motorisations Aéronautiques (SMA) aircraft diesel engine (ADE) Model SR305-230-1 installed under Supplemental Type Certificate (STC) SA03302AT; orSMA ADE Model SR305-230 converted to Model SR305-230-1 (by incorporation of SMA Service Bulletin SB-01-76-002) installed under STC SA03302AT.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              |\n| -------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |\n| Requirement:   | 1. Remove intercooler part number (P/N) SF01170004-0 and install reworked intercooler P/N SF01170004-1 and remove intercooler inlet and outlet hoses and install new intercooler inlet hose P/N SF01170083-0 and intercooler outlet hose P/N SF01170048-0.2. Inspect intercooler inlet and outlet hoses and clamps for displacement and re-torque clamps. If you find any displacement do the displacement recovery.3. Inspect the installation of the intercooler outlet hose and intercooler inlet hose assembly for any displacement or damage of clamps or hoses.4. If, any displacement or damage of clamps or hoses is found during the inspection detailed in Requirement 3 of this AD, replace any damaged clamps and hoses.5. Do not install any intercooler P/N SF01170004-0.SMA SAFRAN Group Service Bulletin SB-C182-75-004, Revision No. Basic Issue, dated 8 July 2008 provides the instructions for compliance with Requirements 1 through 4 of this AD.Later revisions of the above SB, approved by the United States Federal Aviation Administration (FAA) as an Alternate Method of Compliance (AMOC) to FAA AD 2009-04-05 are considered acceptable for compliance with the equivalent Requirements of this Directive.Note: FAA AD 2009-04-05 Amdt 39-15811 dated 6 February 2009 refers. |\n\n| Compliance: | For Requirement 1 - Before further flight after the effective date of this AD.For Requirement 2 - Within the next 25 hours time-in service (TIS) following installation detailed in Requirement 1 of this AD.For Requirement 3 - Initially inspect within the next 100 hours TIS or within 12 months after the action detailed in Requirement 1 of this AD is carried out, whichever occurs first.Thereafter repeat the inspection at intervals not to exceed 100 hours TIS or 12 months, whichever occurs first.For Requirement 4 - Before further flight, after the inspection detailed in Requirement 3 of this AD is carried out and any displacement or damage of clamps or hoses is found.For Requirement 5 - From the effective date of this AD. |\n| ----------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n|             | This Airworthiness Directive becomes effective on 27 March 2009.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        |\n| Background: | This FAA has advised of two instances of induction hose disconnection occurring while in service on the air inlet manifold circuit, resulting in a loss of turbo boost and a significant loss of engine power. The issuing this AD is intended to detect and correct improper intercooler hose assembly installation, which could result in loss of turbo boost and a significant loss of engine power.This failure could lead to an inability to maintain constant altitude in flight.                                                                                                                                                                                                                                                                 |\n\n![](image.001.png)  \nJames Coyne  \nDelegate of the Civil Aviation Safety Authority\n\n26 February 2009","sortOrder":0},{"sectionNumber":"AD/CESSNA 180/95","sectionType":"part","heading":"AD/CESSNA 180/95","content":"## AD/CESSNA 180/95","sortOrder":1},{"sectionNumber":"Intercooler and Associated Hoses","sectionType":"part","heading":"Intercooler and Associated Hoses","content":"## Intercooler and Associated Hoses","sortOrder":2},{"sectionNumber":"4/2009 DM","sectionType":"part","heading":"4/2009 DM","content":"## 4/2009 DM","sortOrder":3}],"analysis":{"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"Scope remains focused on Cessna 182Q/182R aeroplanes with the SMA SR305‑230‑1 installation as described in the Applicability. The directive enforces specific part replacement, inspections and a ban on the old part and does not expand to other models or engine types (Applicability; Requirements; Background)."},"complexity_factors":["Narrow applicability limited to Cessna 182Q and 182R with SMA SR305‑230‑1 installed under STC SA03302AT or converted under SMA SB‑01‑76‑002 (Applicability).","Mandatory hardware change: replace intercooler P/N SF01170004‑0 with reworked P/N SF01170004‑1 and install new hoses P/N SF01170083‑0 and SF01170048‑0 (Requirement 1).","Prohibition on reinstalling the old intercooler part (Requirement 5).","Multiple inspection and corrective actions: immediate post‑installation inspection, initial inspection within 100 hours TIS or 12 months, and repetitive inspections at those intervals; replace damaged clamps/hoses as found (Requirements 2–4; Compliance).","Tight and varied compliance timings: some actions required before further flight, others within 25 hours TIS or at 100‑hour/12‑month intervals (Compliance: Requirements 1–4).","Reliance on an external service bulletin and FAA approval for compliance details: SMA SAFRAN Group SB‑C182‑75‑004 and FAA AD 2009‑04‑05 / AMOC references (Requirement note; Background).","Operational and logistical impacts for operators: parts acquisition, maintenance labour and aircraft downtime driven by the 'before further flight' and scheduled inspection requirements (Requirements 1–4; Compliance)."],"plain_english_summary":"**What it does:** This directive requires owners/operators of Cessna 182Q and 182R aeroplanes fitted with SMA SR305‑230‑1 engines (installed under STC SA03302AT or converted under SMA SB‑01‑76‑002) to replace a specified intercooler and install new inlet/outlet hoses, inspect clamps and hoses, and not re‑install the old intercooler part.  \n\n**Why it matters:** The measures respond to reported intercooler/induction hose disconnections that caused loss of turbo boost and engine power; some actions must be done before next flight, others on a recurring inspection schedule."},"kimi_summary":{"content_quality":"ok","complexity_score":3,"scope_assessment":{"changed":false,"description":"This is a standard Airworthiness Directive with a tightly scoped, safety-critical purpose: addressing a specific mechanical defect in a specific aircraft/engine combination. The scope remains precisely targeted at the identified safety risk (intercooler hose disconnection) without expansion into broader operational or maintenance requirements."},"complexity_factors":["Single, specific technical subject matter (intercooler and hoses on one aircraft/engine combination)","5 numbered requirements with clear sequential logic","Cross-reference to one external document (SMA Service Bulletin SB-C182-75-004) for detailed instructions","Reference to US FAA AD 2009-04-05 as alternate compliance method","Multiple compliance timeframes (before further flight, 25 hours TIS, 100 hours TIS/12 months)","Limited defined terms (only standard aviation abbreviations: TIS, P/N, STC, AMOC, FAA)","No nested exceptions or conditional sub-clauses"],"plain_english_summary":"This AD requires owners/operators of Cessna 182Q and 182R aeroplanes with the SMA SR305-230-1 diesel engine (installed under STC SA03302AT) to fit a redesigned intercooler, replace related hoses, inspect and re‑torque hose clamps, and prohibits reinstalling the old intercooler. It responds to reports of in‑flight induction hose disconnection causing turbo loss and significant engine power reduction, a safety risk that could prevent maintaining altitude."},"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"}},"importantCases":[],"_links":{"self":"/api/acts/ad-cessna-180-95-intercooler-and-associated-hoses","history":"/api/acts/ad-cessna-180-95-intercooler-and-associated-hoses/history","analysis":"/api/acts/ad-cessna-180-95-intercooler-and-associated-hoses/analysis","conflicts":"/api/acts/ad-cessna-180-95-intercooler-and-associated-hoses/conflicts","importantCases":"/api/acts/ad-cessna-180-95-intercooler-and-associated-hoses/important-cases","documents":"/api/acts/ad-cessna-180-95-intercooler-and-associated-hoses/documents"}}