{"id":"F2006B07791","name":"Airworthiness Directives 2004 - Revocation and Remaking - Cessna 170 172 F172 FR172 and 175 Series Aeroplanes","slug":"airworthiness-directives-2004-revocation-and-remaking-cessna-170-172-f172-fr172-and-175-series-aerop","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":50614,"registerId":"commonwealth-F2006B07791-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 - Cessna 170 172 F172 FR172 and 175 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\nCessna 170, 172, F172, FR172 and 175 Series Aeroplanes\n\nAD Name AD Number\n\nCabin Air Heater Muff - CANCELLED AD/CESSNA 170/1\n\nRight Wing Rear Spar AD/CESSNA 170/2\n\nNose Wheel Strut AD/CESSNA 170/3\n\nTitle Unknown - CANCELLED AD/CESSNA 170/4\n\nRear Spar - CANCELLED AD/CESSNA 170/5\n\nUndercarriage Attachment Bolts AD/CESSNA 170/6 Amdt 2\n\nElevator Control System - CANCELLED AD/CESSNA 170/7\n\nUpper Surface of Wing L.E. Skin - CANCELLED AD/CESSNA 170/8\n\nMain Undercarriage U Bolts AD/CESSNA 170/9 Amdt 1\n\nStratoflex Fuel Hoses - CANCELLED AD/CESSNA 170/10\n\nEngine Cowl Access Doors - CANCELLED AD/CESSNA 170/11\n\nNose Gear Upper Torque Link AD/CESSNA 170/12 Amdt\n\nPlastic Control Wheel AD/CESSNA 170/13 Amdt\n\nWindshield Defrosting Flexible Hose - CANCELLED AD/CESSNA 170/14\n\nLower Engine Mount Brackets - CANCELLED AD/CESSNA 170/15\n\nRear Spar AD/CESSNA 170/16 Amdt\n\nPropeller Spinner Bulkhead - CANCELLED AD/CESSNA 170/17 Amdt\n\nBrake Master Cylinder Attachment - CANCELLED AD/CESSNA 170/18 Amdt\n\nPneumatic Stall Warning System AD/CESSNA 170/19 Amdt\n\nExhaust System - CANCELLED AD/CESSNA 170/20\n\nControl Systems AD/CESSNA 170/21\n\nOil Pressure Line - CANCELLED AD/CESSNA 170/22\n\nFlap Actuator - CANCELLED AD/CESSNA 170/23\n\nAileron Mass Balance Weight Attachment Rivets AD/CESSNA 170/24 Amdt\n\nEngine Power Limitations - Placard AD/CESSNA 170/25\n\nFront Seat Restraint Installation AD/CESSNA 170/26\n\nFuel System Placard AD/CESSNA 170/27\n\nWing Strut Attachment Strap AD/CESSNA 170/28\n\nAft Fuselage Bulkhead Assembly AD/CESSNA 170/29 Amdt\n\n  \nWing Flap Actuator Ball Nut Assemblies AD/CESSNA 170/30\n\nFuel Vent Tube AD/CESSNA 170/31 Amdt\n\nVented Fuel Caps AD/CESSNA 170/32 Amdt\n\nFlap Actuator AD/CESSNA 170/33 Amdt\n\nEngine Mounting Bracket Bolts AD/CESSNA 170/34 Amdt\n\nFlying Control System Turnbuckles AD/CESSNA 170/35\n\nFuel Line/Map Light Switch - CANCELLED AD/CESSNA 170/36\n\nWing Flap Operating System AD/CESSNA 170/37 Amdt\n\nOil Pump Drive - CANCELLED AD/CESSNA 170/38\n\nElevator Cable Clevis - CANCELLED AD/CESSNA 170/39\n\nMixture Control Connection AD/CESSNA 170/40\n\nExhaust Muffler - CANCELLED AD/CESSNA 170/41\n\nOil Pressure Line AD/CESSNA 170/42\n\nFuel Quantity Placarding AD/CESSNA 170/43\n\nLimited Elevator Movement - Placard AD/CESSNA 170/44\n\nRudder Trim/Nose Gear Steering Bungee AD/CESSNA 170/45\n\nElevator Cable Clevis to Aft Elevator Bellcrank Attachment AD/CESSNA 170/46\n\nCrankcase Breather Tube and Oil Seal AD/CESSNA 170/47 Amdt\n\nExhaust Muffler/Shroud AD/CESSNA 170/48\n\nRight Hand (Co-Pilots) Control Wheel Yoke Guide AD/CESSNA 170/49\n\nAileron Hinge Pin AD/CESSNA 170/50\n\nConsole Reinforcement and Fuel Selector Shaft Roll Pin AD/CESSNA 170/51\n\nMuffler AD/CESSNA 170/52\n\nSeat Adjustment Mechanism AD/CESSNA 170/53 Amdt\n\nAircraft Repair AD/CESSNA 170/54\n\nExhaust Heater/Muffler AD/CESSNA 170/55\n\nInstrument Panel Light Dimming Rheostat AD/CESSNA 170/56\n\nForward Door Post Bulkhead AD/CESSNA 170/57 Amdt\n\nNose Landing Gear Actuator Attach Fitting AD/CESSNA 170/58\n\nHorizontal Stabiliser Front Spar AD/CESSNA 170/59 Amdt\n\nFuel Strainer Drain and Engine Muffler Tailpipe AD/CESSNA 170/60\n\nAlternate Static Source Valve Inspection AD/CESSNA 170/61\n\nroquip Engine Exhaust Mufflers AD/CESSNA 170/62\n\nFlight Control System AD/CESSNA 170/63\n\nLower Forward Doorpost AD/CESSNA 170/64\n\nControl Yoke Pivot Bolt AD/CESSNA 170/65\n\n  \nFuel Selector Valve AD/CESSNA 170/66\n\nOil Pressure Switch AD/CESSNA 170/67\n\nFuel Strainer AD/CESSNA 170/68\n\nMain Landing Gear Pivot Assembly AD/CESSNA 170/69\n\nFuel Mixture Setting AD/CESSNA 170/70\n\nFuel Line/Map Light Switch AD/CESSNA 170/71\n\nCigar Lighter Wiring AD/CESSNA 170/72\n\nKAP 140 Autopilot System AD/CESSNA 170/73\n\nKAP 140 Autopilot System AD/CESSNA 170/74\n\nUpper Shoulder Harness Adjuster Spring AD/CESSNA 170/75","sortOrder":0}],"analysis":{"flash_summary":{"complexity_score":4,"scope_assessment":{"changed":false,"description":"The instrument does not change substantive requirements. The note states each attached AD is remade 'in exactly the same form' as the latest published edition. The measure is administrative: it revokes listed ADs and republishes them as separate instruments rather than altering their technical content."},"complexity_factors":["Large number of ADs listed in Schedule 1 (many entries, including variants marked 'CANCELLED' and 'Amdt') increases administrative scope.","Action is procedural—revocation and remaking—so legal effect depends on accuracy of republishing; potential for implementation error.","Reference to subregulation 39.001(1) concentrates decision authority in a CASA delegate, creating a single point of legal discretion.","Operators must track multiple separate instruments after remaking, increasing compliance and record-keeping burden.","Document does not reproduce full AD texts here (note says attached ADs are remade), so practical effect requires consulting the attachments/latest published editions.","Mixture of substantive and cancelled entries creates minor ambiguity for readers about which ADs remain operative without cross-checking."],"plain_english_summary":"This instrument revokes a long list of Airworthiness Directives (ADs) for Cessna 170, 172, F172, FR172 and 175 series aeroplanes and remakes each listed AD as a separate instrument in the same form as the latest published editions. It is made by a delegate of the Civil Aviation Safety Authority under subregulation 39.001(1).\n\nOwners and operators of the listed aircraft remain required to comply with those ADs; the measure is administrative (republishing existing ADs) but creates an administrative burden to track the reissued instruments."},"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":"The legislation maintains identical substantive scope to the original Airworthiness Directives. The instrument explicitly states that each AD is being re-made 'in exactly the same form as appears in the latest published edition.' This is purely a procedural restructuring of legislative form, not an expansion or alteration of regulatory substance."},"complexity_factors":["Single operative provision with straightforward dual action (revocation and remaking)","No defined terms section — relies on external references to Civil Aviation Safety Regulations 1998","Extensive schedule (75 items) but purely tabular/list format with no conditional logic","No cross-references within the instrument itself beyond the Schedule 1 reference","Simple administrative mechanism with no exceptions, exemptions, or nested conditions","Note clarifies that content is being reproduced exactly without amendment, reducing interpretive burden"],"plain_english_summary":"This instrument revokes 75 existing Airworthiness Directives for Cessna 170/172/F172/FR172/175 series aeroplanes and remakes each one as a separate, identical legal instrument.  \n\nIt's a housekeeping re‑structuring by CASA: requirements, inspections and maintenance obligations stay the same, but each AD is now a standalone document. Affects aircraft owners/operators, maintenance engineers, flying schools and clubs—no practical change to compliance."}},"importantCases":[],"_links":{"self":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-cessna-170-172-f172-fr172-and-175-series-aerop","history":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-cessna-170-172-f172-fr172-and-175-series-aerop/history","analysis":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-cessna-170-172-f172-fr172-and-175-series-aerop/analysis","conflicts":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-cessna-170-172-f172-fr172-and-175-series-aerop/conflicts","importantCases":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-cessna-170-172-f172-fr172-and-175-series-aerop/important-cases","documents":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-cessna-170-172-f172-fr172-and-175-series-aerop/documents"}}