{"id":"F2006B07926","name":"Airworthiness Directives 2004 - Revocation and Remaking - Mitsubishi MU-2 Series Aeroplanes","slug":"airworthiness-directives-2004-revocation-and-remaking-mitsubishi-mu-2-series-aeroplanes","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":50974,"registerId":"commonwealth-F2006B07926-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"Airworthiness Directives 2004 - Revocation and Remaking - Mitsubishi MU-2 Series Aeroplanes","content":"Airworthiness Directives 2004\n\nI, DAVID ALAN VILLIERS, delegate of the Civil Aviation Safety\n\nAuthority, acting under subregulation 39.001 (1) of the Civil\n\nAviation Safety Regulations 1998:\n\n(a) revoke the Airworthiness Directives mentioned in\n\nSchedule 1; and\n\n(b) make, as separate instruments, each Airworthiness\n\nDirective mentioned in Schedule 1 and attached.\n\n![](image.001.png)\n\nDavid Villiers\n\nDelegate of the Civil Aviation Safety Authority\n\n20 December 2004\n\nNote: Each attached Airworthiness Directive is being re-made in exactly the\n\nsame form as appears in the latest published edition of the Directive.\n\n  \nSchedule 1 Revocation and Remaking of\n\nAirworthiness Directives\n\nMitsubishi MU-2 Series Aeroplanes\n\nAD Name AD Number\n\nLagging of Engine Air Bleed Pipes - Modification AD/MU-2/1\n\nWindows - Cabin and Cockpit - Modification AD/MU-2/2\n\nIntegral Fuel Vent Check Valve AD/MU-2/3 Amdt 1\n\nIntegral Fuel Tank Sealing - Inspection AD/MU-2/4 Amdt 1\n\nWing Structural Fatigue Limitation AD/MU-2/5 Amdt 3\n\nNose Landing Gear Actuator and Bracket Bolts - Replacement AD/MU-2/6\n\nFront Seat Restraint Installations - Modification AD/MU-2/7\n\nFront Windshield Outer Pane - Inspection and Windshield De-Fogging Air AD/MU-2/8 Amdt 1\n\nTrim Aileron Bellcrank Bracket Bolt Holes - Inspection AD/MU-2/9\n\nFlap Control System Flexible Shafts - Inspection AD/MU-2/10 Amdt 1\n\nPropeller Pitch Control Lever - Inspection AD/MU-2/11\n\nNose Landing Gear Shimmy Damper - Inspection AD/MU-2/12\n\nMain Landing Gear Forward Door Emergency Cable - Inspection AD/MU-2/13\n\nEngine Nacelle Upper Door Latches - Inspection AD/MU-2/14\n\nMain Landing Gear Door Mechanism Support - Inspection AD/MU-2/15\n\nMain Landing Gear Drag Strut - Inspection AD/MU-2/16\n\nElevator Trim Tab Bracket - Inspection and Replacement AD/MU-2/17 Amdt 4\n\nFlap Jack Screw - Inspection: Flap Gearbox - Inspection and Re-adjustment AD/MU-2/18\n\nEngine Nacelle Upper Door Rod Assembly - Removal and Modification AD/MU-2/19\n\nEngine Nacelle Upper Door Latch Link - Replacement AD/MU-2/20\n\nOuter Fuel Tank Switch Wiring - Modification AD/MU-2/21 Amdt 1\n\nNose Landing Gear Strut Assembly AD/MU-2/22 Amdt 2\n\nNose Landing Gear Retracting Mechanism - Inspection AD/MU-2/23\n\nNose Landing Gear L/H Drag Strut Attach Bracket - Inspection and AD/MU-2/24 Amdt 1\n\nFlap Control System Torque Tube Assembly Joint AD/MU-2/25 Amdt 2\n\nControl Cable Turnbuckles - Inspection and Replacement AD/MU-2/26\n\nEngine Control System Cable Pulleys - Replacement AD/MU-2/27\n\nNose Landing Gear Eccentric BO - Inspection and Replacement AD/MU-2/28\n\nAvionic Equipment Mounting Shelf - Modification AD/MU-2/29\n\n  \nEngine Electrical Harness - Inspection and Replacement of P/No MS25471 AD/MU-2/30\n\nCockpit Airconditioning Ducts - Inspection and Modification AD/MU-2/31\n\nReplacement of Series Relay and Modification to the Two Battery System AD/MU-2/32\n\nRudder and Elevator Trim Idler Installation - Modification AD/MU-2/33\n\nEngine Air Intake Bleed Air Tubing Coupling Nut Retorque, Inspection, AD/MU-2/34\n\nHorizontal Stabiliser Leading Edge Skin - Inspection and Modification AD/MU-2/35\n\nPitot System AD/MU-2/36 Amdt 1\n\nFlap Flexible Shaft Sealing and Torque Check AD/MU-2/37\n\nLanding Gear Aural Warning System AD/MU-2/38\n\nFitment of Manual Ignition Switches AD/MU-2/39\n\nPlacard - Use of Reverse Thrust AD/MU-2/40\n\nGenerator Wiring AD/MU-2/41 Amdt 1\n\nAutopilot/Electric Trim Switch Standardisation AD/MU-2/42\n\nAutopilot/Electric Trim Switch Standardisation AD/MU-2/43\n\nSplit Radio Bus AD/MU-2/44\n\nOperational Restrictions - CANCELLED AD/MU-2/45 Amdt 3\n\nAnti-Ice and De-Ice Systems AD/MU-2/46\n\nElevator and Rudder Trim Tab Spar AD/MU-2/47\n\nRudder Trim Tab AD/MU-2/48\n\nUnderwing Pressure Bulkhead Flange AD/MU-2/49 Amdt 1\n\nHartzell Propeller Blade Pilot Tube Bore - CANCELLED AD/MU-2/50 Amdt 1\n\nAutopilot Engage Switch Guard AD/MU-2/51\n\nElevator Nose-Down Trim Limit AD/MU-2/52 Amdt 1\n\nIce Detector System Installation AD/MU-2/53 Amdt 1\n\nTip Tank Wiring Conduit AD/MU-2/54\n\nEmergency Gear Down Gearbox AD/MU-2/55\n\nUnderspeed Governor Minimum Stop AD/MU-2/56\n\nAcrylic Windshield and Side Windows AD/MU-2/57\n\nWing Tip Tank Attachment AD/MU-2/58\n\nPropeller Feathering Valve and Linkage - CANCELLED AD/MU-2/59\n\nDe-Ice System Modification AD/MU-2/60 Amdt 1\n\nTrim In Motion and Automatic Pilot Disconnect System AD/MU-2/61 Amdt 1\n\nLanding Gear Actuating Mechanism AD/MU-2/62\n\nLanding Gear Drive Train AD/MU-2/63\n\nElevator Trim Indication AD/MU-2/64\n\nEngine Torque Indication System AD/MU-2/65\n\n  \nFlight Test AD/MU-2/66\n\nFuselage Frame AD/MU-2/67\n\nWing Tip Fuel Tank Attach Brackets AD/MU-2/68\n\nFlap Drive Torque Tube AD/MU-2/69\n\nPneumatic Lines AD/MU-2/70","sortOrder":0}],"analysis":{"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"Scope not changed: the instrument expressly revokes and re‑makes the listed ADs 'in exactly the same form' (see instrument text and Schedule 1), so substantive requirements remain unchanged while the ADs are administratively reissued."},"complexity_factors":["Large number of ADs listed in Schedule 1 (administrative volume for operators and regulators).","No substantive change to content — each AD is re‑made 'in exactly the same form' (low legal complexity).","Legal authority is a single clear power point: subregulation 39.001(1) of the Civil Aviation Safety Regulations 1998.","Operational impact is procedural: tracking and record‑keeping burdens on owners/operators to reference reissued instruments.","Low implementation risk but nontrivial administrative coordination (reissuing, attaching instruments, notifying affected parties)."],"plain_english_summary":"This instrument cancels a long list of existing Airworthiness Directives (ADs) for Mitsubishi MU‑2 aeroplanes and reissues each AD as a separate, identical instrument. It affects aircraft owners, operators and maintenance organisations who must continue to meet the inspections, modifications and other requirements in those ADs. The change is made by a CASA delegate under subregulation 39.001(1); mechanically it is an administrative re‑issuance that preserves existing obligations while requiring parties to track the newly issued instruments for compliance and record‑keeping."},"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":3,"scope_assessment":{"changed":false,"description":"This instrument performs a narrow, technical administrative function. It does not expand or alter the scope of the original Airworthiness Directives—it simply reissues them to maintain legal validity. The scope remains exactly as originally intended: safety regulation of Mitsubishi MU-2 aircraft through mandatory compliance actions."},"complexity_factors":["Single, clear purpose: revocation and remaking of existing instruments","No defined terms section—relies on external references to the Civil Aviation Safety Regulations 1998","Straightforward structure: instrument clause + schedule table + attachments","No conditional logic or nested exceptions in the instrument itself (complexity lies in the attached ADs, not this remaking instrument)","Schedule 1 is a simple table with 70 rows—mechanical listing with no cross-references","Relies entirely on external documents (the 'attached' ADs) for substantive content"],"plain_english_summary":"This CASA Order revokes and reissues 70 Airworthiness Directives for Mitsubishi MU-2 aeroplanes, re-making them in the same form to refresh their legal force. It doesn’t change the substance of the ADs—just renews their enforceability.\n\nIt affects MU-2 owners/operators, maintenance engineers, and CASA enforcement, and is a housekeeping step to keep long-standing safety requirements valid."}},"importantCases":[],"_links":{"self":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-mitsubishi-mu-2-series-aeroplanes","history":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-mitsubishi-mu-2-series-aeroplanes/history","analysis":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-mitsubishi-mu-2-series-aeroplanes/analysis","conflicts":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-mitsubishi-mu-2-series-aeroplanes/conflicts","importantCases":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-mitsubishi-mu-2-series-aeroplanes/important-cases","documents":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-mitsubishi-mu-2-series-aeroplanes/documents"}}