{"id":"F2006B07835","name":"Airworthiness Directives 2004 - Revocation and Remaking - DH114 (Heron) Series Aeroplanes","slug":"airworthiness-directives-2004-revocation-and-remaking-dh114-heron-series-aeroplanes","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":50755,"registerId":"commonwealth-F2006B07835-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 - DH114 (Heron) 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\nDH114 (Heron) Series Aeroplanes\n\nAD Name AD Number\n\nrial Weak Link - Modification AD/DH114/1\n\nFlap Spar - Modification AD/DH114/2\n\nASI Drain Cocks - Modification AD/DH114/3\n\nAileron Differential Pulley Stud - Modification AD/DH114/4\n\nFuel Tank Filler - Modification AD/DH114/5\n\nMainplane Upper and Lower Spar Booms - Inspection AD/DH114/6 Amdt 2\n\nEngine Mounting Frame - Inspection AD/DH114/7\n\nCentre Section Spar Boom Inspection for Chafing AD/DH114/8\n\nSuperseded by AD/DH114/26 AD/DH114/9 Amdt 1\n\nFlying Control Hinge Brackets - Inspection AD/DH114/10 Amdt 1\n\nWing Rear Spar - Inspection AD/DH114/11\n\nAileron Lever Part No. 14 WA. 199 - Inspection and Modification AD/DH114/12 Amdt 1\n\nCentre Section and Wing Spar Boom - Fatigue Life Limitations AD/DH114/13 Amdt 6\n\nFlap Jack Attachment - Modification AD/DH114/14\n\nTop Centre Section Spar Attachment - Inspection and Modification AD/DH114/15\n\nEngine Mounting Frames - Inspection AD/DH114/16 Amdt 1\n\nLanding Gear Actuator Piston - Inspection and Replacement AD/DH114/17\n\nWing Spar - Inspection AD/DH114/18 Amdt 1\n\nEngine Fire Extinguisher Discharge Nozzle - Inspection AD/DH114/19\n\nRear Engine Foot to Engine Mounting Bolts - Inspection and Retirement AD/DH114/20\n\nCANCELLED AD/DH114/21\n\nWing Strap For Engine Mounting Pick-Up - Inspection AD/DH114/22\n\nFin Attachment Brackets - Inspection AD/DH114/23\n\nNose Undercarriage - Inspection and Modification AD/DH114/24\n\nMainplanes and Flaps - Inspection and Modification AD/DH114/25\n\nWing/Fuselage Lower Main Root Joints - Inspection AD/DH114/26 Amdt 1\n\nFlap Datum Hinge Assembly - Inspection AD/DH114/27 Amdt 1\n\nFlap Datum Hinge Safety Washer - Inspection AD/DH114/28\n\nMain Undercarriage - Main and Damper Jack Bolts - Inspection and AD/DH114/29 Amdt 1\n\n  \nMain Undercarriage - Inspection AD/DH114/30\n\nRudder Control Pedal Reversal Lever - Inspection AD/DH114/31\n\nEmergency Escape Hatches - Inspection AD/DH114/32\n\nPneumatic System - Main Air Reservoirs AD/DH114/33\n\nFuselage Keel Frame at Wing Rear Spar - Inspection AD/DH114/34 Amdt 1\n\nAircraft Life Extension AD/DH114/35 Amdt 2\n\nOuter Engine Mounting Attachment Fittings - Inspection AD/DH114/36\n\nMain Undercarriage Damper Ram - Inspection AD/DH114/37 Amdt 1\n\nDrag Bracing Member, Centre Section Spar Lower Boom - Inspection and AD/DH114/38\n\nNose Undercarriage Radius Rod Adjusting Screw - Replacement AD/DH114/39\n\nEngine Mounting Stay Struts - Inspection AD/DH114/40\n\nFront (Pilots) Seats Restraint Installations - Modification AD/DH114/41\n\nNose Gear Inner Casing - Inspection and Replacement AD/DH114/42\n\nCentre Section Main Spar Top and Bottom Boom Joint - Inspection AD/DH114/43 Amdt 2\n\nSuperseded by AD/DH114/35B AD/DH114/44\n\nTailplane Upper Pick-Up Eyebolt in Bulkhead 7 - Inspection AD/DH114/45\n\nFuel System - Modification AD/DH114/46\n\nFuel System - Modification and Component Relocation AD/DH114/47\n\nAileron Mass Balance Weight Assembly AD/DH114/48\n\nFlap To Flap Jack Connecting Pin AD/DH114/49","sortOrder":0}],"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":2,"scope_assessment":{"changed":false,"description":"The instrument does not change the substantive scope or requirements of the listed ADs: each AD is re‑made in exactly the same form as its latest published edition (per the instrument's note). The effect is administrative reissuance rather than alteration of operator obligations; compliance duties, enforcement scope and technical mandates remain unchanged."},"complexity_factors":["Administrative action only: revocation and re‑making of ADs in the same form (source note).","Large number of ADs listed in Schedule 1 (multiple distinct items for DH114 series).","Legal authority: action taken under subregulation 39.001(1) of the Civil Aviation Safety Regulations 1998.","No substantive technical changes to obligations — potential complexity limited to administrative compliance and record‑keeping.","Reference to attachments and latest published editions implies reliance on external published AD texts rather than embedding technical detail here."],"plain_english_summary":"This instrument revokes a batch of existing Airworthiness Directives (ADs) for DH114 (Heron) series aeroplanes and re‑issues each AD as a separate, unchanged instrument. It is made by a Civil Aviation Safety Authority delegate under subregulation 39.001(1).\n\nMechanically, the directive does not change technical requirements: aircraft owners and operators remain obliged to comply with the same ADs. The measure mainly alters administrative form, preserving existing compliance obligations while shifting record‑keeping to the reissued individual instruments."},"kimi_summary":{"content_quality":"ok","complexity_score":3,"scope_assessment":{"changed":false,"description":"The scope remains tightly focused on the administrative consolidation of existing Heron aircraft airworthiness directives. There is no expansion beyond the original purpose of maintaining safety standards for this specific aircraft type."},"complexity_factors":["Single, clear purpose: revocation and remaking of existing instruments","No substantive amendments to the underlying ADs—purely administrative restructuring","Straightforward tabular schedule listing 49 ADs with simple identifiers","Minimal conditional logic—only one cross-reference to enabling regulation (subregulation 39.001(1))","No defined terms section or complex interpretation provisions","Short document (approximately 1 page of operative text plus schedule)","One cancelled AD (AD/DH114/21) and two superseded ADs noted, but these are clearly marked rather than creating interpretive difficulty"],"plain_english_summary":"This CASA instrument cancels 49 existing Airworthiness Directives for the de Havilland DH114 Heron and reapplies each as a separate, standalone legal instrument.  \n\nIt doesn’t change any safety requirements—inspections, repairs and life-limits remain the same—but affects Heron owners/operators, maintenance engineers and CASA by reorganising the legal form of the directives for clarity and administrative management."}},"importantCases":[],"_links":{"self":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-dh114-heron-series-aeroplanes","history":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-dh114-heron-series-aeroplanes/history","analysis":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-dh114-heron-series-aeroplanes/analysis","conflicts":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-dh114-heron-series-aeroplanes/conflicts","importantCases":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-dh114-heron-series-aeroplanes/important-cases","documents":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-dh114-heron-series-aeroplanes/documents"}}