{"id":"F2006B04162","name":"AD/BEECH 65/68 - Magnesium Metal Bonded Elevator Assembly","slug":"ad-beech-65-68-magnesium-metal-bonded-elevator-assembly","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":43894,"registerId":"commonwealth-F2006B04162-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"AIRWORTHINESS DIRECTIVE","sectionType":"part","heading":"AIRWORTHINESS DIRECTIVE","content":"# AIRWORTHINESS DIRECTIVE\n\n![](image.002.png)\n\n![](image.002.png)  \nFor the reasons set out in the background section, the CASA delegate whose signature appears below issues the following Airworthiness Directive (AD) under subregulation 39.1 (1) of CAR 1998. The AD requires that the action set out in the requirement section (being action that the delegate considers necessary to correct the unsafe condition) be taken in relation to the aircraft or aeronautical product mentioned in the applicability section: (a) in the circumstances mentioned in the requirement section; and (b) in accordance with the instructions set out in the requirement section; and (c) at the time mentioned in the compliance section.","sortOrder":0},{"sectionNumber":"AD/BEECH 65/68 Magnesium Metal Bonded El","sectionType":"part","heading":"AD/BEECH 65/68 Magnesium Metal Bonded Elevator Assembly 13/2000","content":"# AD/BEECH 65/68 Magnesium Metal Bonded Elevator Assembly 13/2000\n\nApplicability: Model Serial Numbers\n\nA65 LC-265 through LC-272 and LC-325 through LC-335 A65-8200 LC-273 through LC-324\n\n65-B80 LD-349 through LD-511\n\n70 LB-1 through LB-35\n\nRequirement: Action in accordance with Raytheon Aircraft Mandatory Service Bulletin 27-3396, Issued May 2000, Revised June 2000.\n\nNote: FAA AD 2000-18-02 Amdt 39-11887 refers.\n\nCompliance: Accomplish, before 28 January 2001, the check to determine whether an affected elevator skin assembly is installed. Replace, before further flight, any elevator skin assembly found to be affected.\n\nThis Airworthiness Directive becomes effective on 28 December 2000.\n\nBackground: The FAA received reports that certain elevator skin assemblies did not receive a 250 degree Fahrenheit bake operation after corrosion treatment; thus making the skin susceptible to separation from the elevator assembly. Static strength capability is reduced due to the bond degradation, and continued operation could result in skin separation with potential aircraft flutter, and consequent loss of control of the aircraft.\n\n![](image.003.png)  \n\nDavid Alan Villiers\n\nDelegate of the Civil Aviation Safety Authority 7 November 2000\n\n![](image.002.png)  \n\nThe above AD is notified in the Commonwealth of Australia Gazette on 22 November 2000.","sortOrder":1}],"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 manufacturing defect in specific aircraft models. It remains tightly scoped to its original purpose of correcting a known unsafe condition in the elevator assemblies of particular Beechcraft aircraft."},"complexity_factors":["Very short document (approximately 300 words)","Only 4 defined model/serial number ranges in applicability section","Single requirement referencing an external technical document (Raytheon Service Bulletin 27-3396)","Simple two-step compliance: inspect by date, replace if failed","No nested exceptions or conditional logic","No cross-references to other legislation beyond the enabling regulation (CAR 1998 subreg 39.1(1)) and a note about the corresponding FAA directive"],"plain_english_summary":"This safety order requires owners/operators of certain Beechcraft A65/65‑8200/65‑B80/70 aircraft with specific serial numbers to inspect elevator skin assemblies per Raytheon’s service bulletin by 28 January 2001 and to replace any defective skins before further flight. Missing heat treatment on some skins can allow corrosion and bond failure, risking in‑flight skin separation and dangerous control‑surface flutter. The order is effective 28 December 2000."},"flash_summary":{"complexity_score":2,"scope_assessment":{"changed":false,"description":"This AD stays within the original safety-remedy scope: it targets a specific manufacturing/process defect (missing 250 °F bake after corrosion treatment) affecting particular elevator skin assemblies on defined serial-numbered aircraft. It does not broaden the remedy to other parts, models, or novel regulatory powers. The directive prescribes inspection and replacement per the manufacturer’s service bulletin and does not expand obligations beyond that narrowly defined corrective action."},"complexity_factors":["Short, single-issue Airworthiness Directive (one safety problem)","Applicability defined by a finite list of serial-number ranges (few ranges)","Single external cross-reference to one manufacturer service bulletin (Raytheon SB 27-3396)","Reference to one FAA AD (FAA AD 2000-18-02) rather than an extensive regulatory web","Clear binary compliance action (inspect; if affected, replace before further flight)","Two firm dates (effectivity and compliance deadline)"],"plain_english_summary":"**What this instrument does (mechanically)**\n\n- Requires operators of specific Beech (Raytheon) light-aircraft models and serial-number ranges (listed under “Applicability”) to check whether a particular elevator skin assembly (the outer surface of the elevator control surface) is installed. (See “Applicability”.)\n- Directs that the check be carried out in accordance with Raytheon Aircraft Mandatory Service Bulletin 27-3396 (Issued May 2000, Revised June 2000). (See “Requirement”.)\n- Requires that, if the elevator skin assembly is found to be one of the affected (suspect) assemblies, it must be replaced before the aircraft flies again. (See “Compliance”.)\n- Sets a compliance deadline for the initial check: the check must be completed before 28 January 2001. The AD itself took effect on 28 December 2000. (See “Compliance” and heading.)\n\n**Who is affected**\n\n- Owners/operators of the listed Beech/Raytheon models and specific serial number ranges: A65, A65-8200, 65-B80, and 70 series aircraft as enumerated in the Applicability section (serial ranges LC-265 through LC-335 with some breaks, LC-273–324, LD-349–LD-511, LB-1–LB-35). If you operate any of those serial-numbered aircraft, this AD applies.\n\n**Why it matters (stated safety concern and mechanics)**\n\n- The FAA and manufacturer reported that some elevator skin assemblies were not given the required 250 °F bake after corrosion treatment. That omitted bake can weaken the adhesive bond between the skin and the elevator structure.\n- Bond degradation reduces static strength and can allow the skin to separate in flight. Skin separation can change aerodynamic behaviour, risk inducing flutter, and could lead to loss of control. (See “Background”.)\n\n**How it works in practice**\n\n- The regulator (the CASA delegate who issued the AD) requires the inspection action and prescribes the method: follow Raytheon Service Bulletin 27-3396. The service bulletin contains the procedural detail for the check and for replacement where necessary. (See “Requirement”.)\n- If the check identifies an affected assembly, the operator must replace that elevator skin assembly before further flight. This may ground the aircraft until replacement parts and authorised work are available. (See “Compliance”.)\n- The AD cross-references FAA AD 2000-18-02 and relies on the manufacturer’s service bulletin for technical instructions.\n\n**Who pays and who decides**\n\n- Owners/operators pay for the inspection and for any replacement parts and labour. The AD creates a mandatory maintenance cost and potential downtime cost.\n- The CASA delegate (the regulator) sets the legal requirement; the operator chooses when (before the compliance date) and arranges the work, but must follow the manufacturer’s service bulletin.\n\n**Implementation, incentives and trade-offs**\n\n- Implementation depends on access to the Raytheon service bulletin and availability of replacement elevator skin assemblies. If parts are scarce, operators face aircraft downtime.\n- The directive creates a clear and immediate safety requirement with concentrated benefits (reduced risk for affected aircraft) and diffuse costs (inspection and replacement costs borne by individual operators). There is no alternative compliance route indicated in the AD text; compliance is by following the specified service bulletin and replacing affected parts.\n- The AD relies on the manufacturer and FAA data for technical assessment; regulatory discretion is limited to mandating the remediation and setting the compliance deadline.\n\n(Primary source sections used: “Applicability”, “Requirement”, “Compliance”, “Background”. The AD also notes FAA AD 2000-18-02.)"}},"importantCases":[],"_links":{"self":"/api/acts/ad-beech-65-68-magnesium-metal-bonded-elevator-assembly","history":"/api/acts/ad-beech-65-68-magnesium-metal-bonded-elevator-assembly/history","analysis":"/api/acts/ad-beech-65-68-magnesium-metal-bonded-elevator-assembly/analysis","conflicts":"/api/acts/ad-beech-65-68-magnesium-metal-bonded-elevator-assembly/conflicts","importantCases":"/api/acts/ad-beech-65-68-magnesium-metal-bonded-elevator-assembly/important-cases","documents":"/api/acts/ad-beech-65-68-magnesium-metal-bonded-elevator-assembly/documents"}}