{"id":"F2006B03721","name":"AD/BEECH 200/69 - Elevator Balance Weight Attachment","slug":"ad-beech-200-69-elevator-balance-weight-attachment","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":43311,"registerId":"commonwealth-F2006B03721-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"AIRWORTHINESS DIRECTIVE","sectionType":"part","heading":"AIRWORTHINESS DIRECTIVE","content":"# ![](image.001.png)  \nAIRWORTHINESS DIRECTIVE\n\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.\n\n![](image.001.png)\n\nBeechcraft 200 (Super King Air) Series Aeroplanes","sortOrder":0},{"sectionNumber":"AD/BEECH 200/69 Elevator Balance Weight ","sectionType":"part","heading":"AD/BEECH 200/69 Elevator Balance Weight Attachment 2/2003","content":"# AD/BEECH 200/69 Elevator Balance Weight Attachment 2/2003\n\nApplicability: Models 200, 200C, 200T/B200T, 200CT, B200, B200C, and B200CT aircraft, with serial numbers listed in Raytheon Mandatory Service Bulletin (MSB) SB 27-3187, Revision 1, Revised September 2001.\n\nRequirement: 1. Check the aircraft lo gbook to determine whether the elevator(s) have been removed. If, by checking the logbook, it can be positively determined that the elevators have never been removed, no further action is required.\n\n    2. If, by checking the logbook, it can determined that the elevator(s) has/have been removed, or if complete records of elevator(s) do not exist, inspect the elevator balance weight attachment screws to determine if they are the correct length in accordance with the Accomplishment Instructions section of Raytheon MSB SB 27-3187 Revision 1. If the inspection reveals the elevator balance weight attachment screws are the correct length, no further action is required.\n\n    3. If, during the Requirement 2 inspection, the elevator balance weight attachment screw(s) are found to be incorrect length, remove and rebalance the elevator(s) by installing the balance weights with the appropriate new elevator balance weight attachment bolts in accordance with the Accomplishment Instructions section of Raytheon MSB SB 27-3187 Revision 1, and the applicable maintenance manual.\n\n    4. Do not install, on any affected aircraft, an elevator that has been rebalanced unless it has been rebalanced by installing the balance weights with the appropriate new balance weight attachment bolts, part number in the range of NAS6703HU12 through NAS6703HU22, that have drilled heads and are secured with safety wire.\n\nNote: FAA AD 2002-23-11 Amdt 39-12955 refers.\n\nCompliance: For Requirements 1 and 2: Within 200 hours time in service after 20 February 2003.\n\nRequirement 3: Before further flight. Requirement 4: As of 20 February 2003.\n\nThis Airworthiness Directive becomes effective on 20 February 2003.","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"},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"This AD is narrowly targeted at correcting a specific hardware/installation unsafe condition (elevator balance weight attachment screws/bolts) for specified Beechcraft 200-series aircraft serial numbers. It implements technical instructions from the Raytheon MSB as mandatory actions (inspection, replacement, and installation prohibition). The AD does not expand into unrelated regulatory areas or broader aircraft systems, so it does not appear to have grown beyond its original safety-focused purpose."},"complexity_factors":["Single subject AD focused on one hardware item (elevator balance weight attachment)","4-step requirement structure (Requirement 1–4) with clear if/then flow","Cross-reference to one external mandatory service bulletin: Raytheon MSB SB 27-3187 Revision 1 (technical details placed outside the AD)","Specific part-number range requirement (NAS6703HU12 through NAS6703HU22) with physical characteristic requirement (drilled heads, safety-wired)","Different compliance times for different steps (200 hours TIS for Req 1–2; before further flight for Req 3; immediate prohibition for Req 4)","Reference note to a related FAA AD (additional cross-jurisdictional reference)","Applicability limited to certain serial numbers listed in the external MSB (scope determined by an external list)"],"plain_english_summary":"**What this rule does (simple):**\n\n- This Airworthiness Directive (AD) requires owners/operators of certain Beechcraft 200 / Super King Air aeroplanes to check whether the elevators have ever been removed, inspect the screws that attach the elevator balance weights if removal is possible or records are missing, and replace the attachment bolts and rebalance the elevators if the screws are the wrong length. (See \"Requirement\" steps 1–4.)\n\n**Which aeroplanes are affected:**\n\n- Models: Beechcraft 200 family — Models 200, 200C, 200T/B200T, 200CT, B200, B200C, and B200CT.\n- Only the specific serial numbers listed in Raytheon Mandatory Service Bulletin (MSB) SB 27-3187 Revision 1 (Revised September 2001) are covered. (See \"Applicability\".)\n\n**What you must do and when:**\n\n- Step 1 (logbook check): Check the aircraft logbook to see if an elevator has ever been removed. If you can positively confirm the elevators have never been removed, no further action is required. (Requirement 1.)\n\n- Step 2 (inspection): If the logbook shows an elevator has been removed, or if records are incomplete, inspect the elevator balance weight attachment screws for correct length, following the Accomplishment Instructions in Raytheon MSB SB 27-3187 Revision 1. If screws are the correct length, no further action is required. (Requirement 2.)\n\n- Step 3 (corrective action): If the screws are the wrong length, remove and rebalance the elevator(s) by installing the balance weights using the correct new balance weight attachment bolts (and follow the applicable maintenance manual and the MSB). This corrective action must be done before further flight. (Requirement 3.)\n\n- Step 4 (installation prohibition): From the AD effective date forward (20 February 2003), you must not install on an affected aircraft any elevator that has been rebalanced unless the rebalancing was done using new balance weight attachment bolts with part numbers in the range NAS6703HU12 through NAS6703HU22. Those bolts must have drilled heads and be secured with safety wire. (Requirement 4.)\n\n- Compliance times: Requirements 1 and 2 must be completed within 200 hours time in service after 20 February 2003; Requirement 3 must be completed before further flight; Requirement 4 is effective as of 20 February 2003. (See \"Compliance.\" )\n\n**Why the AD exists (stated purpose and practical effect):**\n\n- The AD says it is issued to correct an unsafe condition — specifically concerns about elevator balance weight attachment hardware (the AD references the Raytheon MSB and an FAA AD). The practical effect is to reduce the risk that improperly attached balance weights could detach or cause control problems by ensuring correct screw/bolt length, correct bolts with drilled heads, and safety-wiring.\n\n**Who pays and who decides:**\n\n- Owners/operators of affected aeroplanes pay for the inspections, parts (replacement bolts if needed), labour and aircraft downtime. Licensed maintenance organisations or engineers will perform the inspections and corrective work following the Raytheon MSB and the applicable maintenance manual. CASA (the Australian Civil Aviation Safety Authority), via an authorised delegate, issued the AD and enforces compliance. The MSB and the maintenance manual provide the technical instructions that the maintenance provider must follow. (Applicability; Requirements; Compliance.)\n\n**Implementation mechanics and record-keeping:**\n\n- Operators must use logbook records as the first check. If records are unclear, a physical inspection per the Raytheon MSB is required.\n- If corrective action is needed, rebalancing and bolt installation must comply with the MSB and the maintenance manual and be recorded in maintenance logs.\n- The AD explicitly prescribes acceptable bolt part numbers (NAS6703HU12 through NAS6703HU22) and the requirement for drilled heads and safety wire.\n\n**Costs, incentives and trade-offs (practical testing of the AD against implementation effects):**\n\n- Direct costs: inspection labour, replacement bolt cost, rebalancing labour, and aircraft downtime. These are borne by the aircraft owner/operator. Parts are standard NAS bolts (part-numbered), which are normally commercially available; the AD does not mandate a sole-source supplier.\n\n- Incentives: clear recordkeeping (logbooks) reduces inspection burden — if operators can positively show elevators were never removed, they avoid the physical inspection. Operators with incomplete records face the inspection/replacement pathway, which may encourage improved recordkeeping.\n\n- Substitution effects: operators may choose to proactively replace bolts to avoid repeated inspections or to comply quickly after discovery. Where work is urgent, operators will incur higher short-term costs but reduce safety risk.\n\n- Implementation risk and compliance burden: the AD requires following an external document (Raytheon MSB SB 27-3187 Revision 1) and the applicable maintenance manual, which creates dependency on OEM instructions for technical detail. Misinterpretation of the MSB or incorrect installation (incorrect torque, incorrectly safety-wired bolts, wrong bolt selection from outside the specified PN range) would defeat the AD’s safety objective. Licensed maintenance providers should have the competence to perform the work; CASA enforces compliance.\n\n- Effects on market/competition: the AD imposes a compliance task but does not restrict who may perform it (licensed maintenance organisations and suitably authorised engineers can comply). There is no exclusive requirement to buy parts from Raytheon, only to use bolts of the specified NAS part numbers; this limits effects on supplier competition.\n\n**Enforcement and record evidence:**\n\n- Compliance must be recorded in the aircraft maintenance logbook per normal regulatory practice; failure to comply could lead to enforcement action or grounding under civil aviation rules. The AD cross-references FAA AD 2002-23-11, which provides related direction in the U.S.\n\n**Bottom line:**\n\n- If you own or operate a covered Beechcraft 200-series aeroplane with the serial numbers listed in the Raytheon MSB, you must check logbooks, inspect balance-weight attachment screws when required, replace bolts and rebalance elevators if screws are incorrect, and ensure any rebalanced elevator uses the specified new bolts (NAS6703HU12–NAS6703HU22) with drilled heads and safety wire. The AD sets firm compliance times and mandates following the Raytheon MSB and the maintenance manual. (Applicability; Requirements 1–4; Compliance.)"},"kimi_summary":{"content_quality":"ok","complexity_score":3,"scope_assessment":{"changed":false,"description":"This is a standard airworthiness directive with a clear, focused scope: addressing a specific unsafe condition in elevator balance weight attachments on specific Beechcraft models. The scope remains tightly constrained to the identified safety issue without expansion into unrelated areas."},"complexity_factors":["Multiple conditional pathways (4 distinct requirements with interdependencies)","Cross-reference to external technical document (Raytheon MSB SB 27-3187 Revision 1) for serial numbers and detailed instructions","Specific part number ranges required (NAS6703HU12 through NAS6703HU22)","Multiple compliance deadlines depending on which requirement applies (200 hours time in service, before further flight, or as of specific date)","Reference to FAA AD 2002-23-11 for additional context"],"plain_english_summary":"This safety order requires owners/operators of certain Beechcraft King Air 200-series aeroplanes (specific serials in a Raytheon bulletin) to check maintenance records and inspect elevator balance-weight fasteners when elevators have been removed or records are incomplete. If incorrect screws are found, elevators must be removed, rebalanced, and reinstalled with specified bolts secured by safety wire. It prevents loose balance weights that could cause severe vibration or loss of control."}},"importantCases":[],"_links":{"self":"/api/acts/ad-beech-200-69-elevator-balance-weight-attachment","history":"/api/acts/ad-beech-200-69-elevator-balance-weight-attachment/history","analysis":"/api/acts/ad-beech-200-69-elevator-balance-weight-attachment/analysis","conflicts":"/api/acts/ad-beech-200-69-elevator-balance-weight-attachment/conflicts","importantCases":"/api/acts/ad-beech-200-69-elevator-balance-weight-attachment/important-cases","documents":"/api/acts/ad-beech-200-69-elevator-balance-weight-attachment/documents"}}