{"id":"F2008L04265","name":"AD/PREMIER/6 - Hydraulic Pump Pressure Output Hose","slug":"ad-premier-6-hydraulic-pump-pressure-output-hose","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":76264,"registerId":"commonwealth-F2008L04265-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Hawker Beechcraft (Raytheon) 390 Series ","sectionType":"division","heading":"Hawker Beechcraft (Raytheon) 390 Series Aeroplanes","content":"### Hawker Beechcraft (Raytheon) 390 Series Aeroplanes\n\n| AD/PREMIER/6 | Hydraulic Pump Pressure Output Hose | 13/2008 DM |\n| ------------ | ----------------------------------- | ---------- |\n\n| Applicability: | Hawker Beechcraft Corporation Model 390 aeroplanes:1. Serial numbers (S/N) RB-1 and RB-4 through RB-209 equipped with hose kit 390-5805-0001 installed during compliance with Hawker Beechcraft Mandatory Service Bulletin 29-3800, dated May 2007; and2. S/N RB-210 though RB-239.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |\n| -------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n| Requirement:   | 1. Initially inspect for suspect engine hydraulic pump pressure output hose assemblies, left part number (P/N) 170H143-6CR-0174 and right P/N 170H192D0394C275, by looking at the identification tags for work order numbers and manufacturing dates listed in Table 1 of Hawker Beechcraft Mandatory Service Bulletin (SB) 29-3897, dated August 2008.If, as a result of this inspection, you find these affected hose assemblies are not installed, no further action is required by this AD.2. If as a result of the inspection required in Requirement 1 of this AD, it is found that one of the hose assemblies is installed, inspect for evidence of hydraulic fluid leakage in accordance with Hawker Beechcraft Mandatory SB 29-3897.3. Replace the hose assembly.Note: FAA AD 2008-22-11 Amdt 39-15707 dated 17 October 2008 refers. |\n| Compliance:    | For Requirement 1 - Within 10 hours time-in-service (TIS) after the effective date of this AD.For Requirement 2 - Initially within 10 hours TIS after the effective date of this AD and repetitively thereafter at intervals not to exceed 10 hours TIS until whichever of the following occurs first:(a) When 40 hours total TIS is accumulated on the installed hose assembly; or(b) When the hose assembly is replaced following the procedures in the service information.                                                                                                                                                                                                                                                                                                                                                                |\n\n|             | For Requirement 3 - Whichever applies and occurs first:(a) Before further flight after any inspection where hydraulic fluid leakage was found; or(b) Within the next 200 hours TIS after the effective date of this AD) or within the next 6 months after the effective date of this AD whichever occurs first.                                                                                                                                                                                                                                   |\n| ----------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n|             | This Airworthiness Directive becomes effective on 3 November 2008.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |\n| Background: | This AD is the result of reports of hydraulic leaks from the hydraulic pump pressure output hose assemblies. The issuing of this AD is intended to prevent leakage of hydraulic fluid from the pump output hose within the engine compartment, which could cause an in-flight fire.This AD requires you to inspect hydraulic pump pressure output hose assemblies to determine if they are from the affected lots, inspect for hydraulic fluid leaks if the hose assemblies are from the affected lots, and replace all affected hose assemblies. |\n\n![](image.001.png)  \nJames Coyne  \nDelegate of the Civil Aviation Safety Authority\n\n28 October 2008","sortOrder":0},{"sectionNumber":"AD/PREMIER/6","sectionType":"part","heading":"AD/PREMIER/6","content":"## AD/PREMIER/6","sortOrder":1},{"sectionNumber":"Hydraulic Pump Pressure Output Hose","sectionType":"part","heading":"Hydraulic Pump Pressure Output Hose","content":"## Hydraulic Pump Pressure Output Hose","sortOrder":2},{"sectionNumber":"13/2008 DM","sectionType":"part","heading":"13/2008 DM","content":"## 13/2008 DM","sortOrder":3}],"analysis":{"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"},"flash_summary":{"complexity_score":4,"scope_assessment":{"changed":false,"description":"The AD keeps scope narrowly focused on the specified serial numbers and the two identified hose part numbers to address reported hydraulic leaks. It mandates identification‑tag checks, periodic leak inspections, and replacement under defined TIS and calendar deadlines, and does not expand beyond those measures described in the instrument."},"complexity_factors":["Narrow applicability but precise: applies only to Hawker Beechcraft Model 390 with specified serial numbers and two specific hose part numbers (Applicability).","Identification method requires checking identification tags for work‑order numbers and manufacturing dates per Table 1 of SB 29‑3897 (Requirement 1) — an administrative check subject to record accuracy.","Conditional workflow: if affected hoses are not installed, no further action; if installed, additional leak inspections are required (Requirement 2).","High-frequency repetitive inspections: leak checks initially within 10 hours TIS and then every 10 hours TIS until either 40 hours total TIS on the hose or the hose is replaced (Compliance for Requirement 2) — operational scheduling burden for operators.","Replacement triggers and deadlines are branched: immediate replacement before further flight if leakage is found; otherwise replacement within 200 hours TIS or within 6 months from the AD effective date, whichever occurs first (Requirement 3 / Compliance).","Procedural reliance on manufacturer service bulletin (SB 29‑3897) for inspection/replacement steps and on FAA AD 2008‑22‑11 for related authority — requires cross‑referencing external documents.","Safety‑critical subject matter (risk of in‑flight fire) increases enforcement and operational impact, including potential aircraft grounding where leakage is detected (Background and Requirement 3).","Compliance costs and downtime fall to aircraft owners/operators (inspections, parts, labour), creating concentrated costs for affected aircraft versus diffuse safety benefits to operators and passengers."],"plain_english_summary":"This Airworthiness Directive requires operators of specified Hawker Beechcraft 390-series aeroplanes to inspect particular hydraulic pump pressure output hoses (by checking identification tags/work-order numbers), carry out frequent leak checks if those hoses are fitted, and replace any affected or leaking hose assemblies within set flight‑time or calendar limits. The rule is intended to prevent hydraulic fluid leaks from pump output hoses that could lead to in‑flight fires. Operators pay for inspection and replacement; the regulator (CASA via the AD) sets the deadlines and inspection cadence."},"kimi_summary":{"content_quality":"ok","complexity_score":3,"scope_assessment":{"changed":false,"description":"This is a standard, targeted airworthiness directive addressing a specific safety-critical defect in a specific aircraft type. The scope remains tightly focused on the hydraulic hose defect and has not expanded beyond the original safety purpose."},"complexity_factors":["Multiple conditional pathways: inspection results determine subsequent actions (if hoses found vs. not found, if leaking vs. not leaking)","Nested compliance timelines: different deadlines for initial inspection (10 hours TIS), repetitive inspections (every 10 hours), and replacement (200 hours TIS or 6 months)","Specific part number references requiring cross-checking against service bulletins (SB 29-3897 and SB 29-3800)","Serial number-based applicability with two distinct categories (RB-1/RB-4-209 with specific kit, and RB-210-239)","Reference to external FAA AD (2008-22-11) for additional context"],"plain_english_summary":"This AD requires operators of certain Hawker Beechcraft (Raytheon) 390 Premier I jets (specific serial-numbered aircraft) to inspect for and, if present, replace suspect hydraulic pump hose assemblies that could leak flammable fluid into the engine bay.  \n\nIt affects owners, operators and maintenance engineers and matters because leaking hydraulic fluid onto hot engine components can cause an in‑flight fire; inspections and replacement deadlines are mandated to eliminate that risk."}},"importantCases":[],"_links":{"self":"/api/acts/ad-premier-6-hydraulic-pump-pressure-output-hose","history":"/api/acts/ad-premier-6-hydraulic-pump-pressure-output-hose/history","analysis":"/api/acts/ad-premier-6-hydraulic-pump-pressure-output-hose/analysis","conflicts":"/api/acts/ad-premier-6-hydraulic-pump-pressure-output-hose/conflicts","importantCases":"/api/acts/ad-premier-6-hydraulic-pump-pressure-output-hose/important-cases","documents":"/api/acts/ad-premier-6-hydraulic-pump-pressure-output-hose/documents"}}