{"id":"F2006B10044","name":"AD/G1159/40 - Goodyear Flight Eagle Tyres","slug":"ad-g1159-40-goodyear-flight-eagle-tyres","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":55469,"registerId":"commonwealth-F2006B10044-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\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/G1159/40 Goodyear Flight Eagle Tyres ","sectionType":"part","heading":"AD/G1159/40 Goodyear Flight Eagle Tyres 11/2001","content":"# ![](image.003.png)AD/G1159/40 Goodyear Flight Eagle Tyres 11/2001\n\nDM\n\nApplicability: Model GIV aircraft, serial numbers 1000 through 1213, except 1183, and Model GII, GIIB, and GIII aircraft, all serial numbers; equipped with any Goodyear Flight Eagle tyre, 34x9.25-16 18PR 210 MPH, part number 348F83-2.\n\nRequirement: Inspect all Goodyear Flight Eagle tyres, 34x9.25-16 18PR 210MPH, part number 348F83-2, to determine if any are within the serial number range of 0168xxxx through 0185xxxx; in accordance with Goodyear Service Bulletin GY SB 2001-32- 006, dated 28 July 2001, and Gulfstream Aerospace Corporation Alert Customer Bulletins No.28 (GIV), No.28 (GII/GIIB), and No.14 (GIII), as applicable.\n\nReplace, before further flight, any affected tyre found within the above referenced serial number range.\n\nNote: FAA AD 2001-18-05 Amdt 39-12431 refers.\n\nCompliance: Within 10 hours time in service after 26 September 2001, unless already accomplished.\n\nThis Airworthiness Directive becomes effective on 26 September 2001.\n\n![](image.004.png)Background: The FAA received reports of several instances of main landing gear tyre tread separations on Gulfstream aircraft. Tread separation could result in structural damage to the aircraft, including damage to the flaps, engine nacelles, and wheel wells.\n\n![](image.005.png)  \n\nDavid Alan Villiers\n\nDelegate of the Civil Aviation Safety Authority 19 September 2001\n\n![](image.002.png)  \n\nThe above AD is notified in the Commonwealth of Australia Gazette on 26 September 2001.","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 Airworthiness Directive maintains its original narrow scope — addressing a specific unsafe condition in specific aircraft with specific tyres. There is no evidence of scope creep; it remains a targeted safety intervention for a identified manufacturing defect."},"complexity_factors":["Single, clearly defined applicability section targeting specific aircraft models and serial numbers","Only one defined term of note ('time in service' — understood aviation standard)","Straightforward conditional logic: IF tyre serial number in range 0168xxxx-0185xxxx THEN replace before flight","No nested exceptions or cross-references to other legislation beyond a single note referencing the parallel FAA directive","Short document (approximately 300 words) with clear section headers","Single compliance deadline with one simple exception ('unless already accomplished')"],"plain_english_summary":"Australia’s aviation safety regulator (CASA) requires owners/operators of Gulfstream GII/GIIB/GIII/GIV jets to inspect specific Goodyear Flight Eagle tyres (PN 348F83-2, SNs 0168xxxx–0185xxxx) for tread-separation defects. Any affected tyres must be replaced before the next flight, following Goodyear/Gulfstream technical instructions, within 10 flight hours after 26 Sept 2001. Maintenance crews and safety inspectors must comply; the order mirrors a related FAA directive."},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"This AD stays within its original safety-limited purpose: identify a specific manufacturer tyre batch (part number and serial-number range) fitted to specified Gulfstream models, inspect them promptly, and replace any affected tyre. It does not expand into unrelated obligations, broader maintenance regimes, certification changes, or economic regulation; the scope is the single unsafe condition (tyre tread separation) identified in the background and addressed by the inspections and replacements."},"complexity_factors":["Short, single-issue AD focused on a specific tyre part number and tyre serial-number range","Applicability limited to a small set of aircraft types and specific serial ranges (GIV limited to serials 1000–1213 except 1183; GII/GIIB/GIII all serials)","Cross-references to three external documents (Goodyear Service Bulletin GY SB 2001-32-006 and Gulfstream Alert Customer Bulletins No.28 (GIV), No.28 (GII/GIIB), No.14 (GIII))","Reference to a related FAA AD (FAA AD 2001-18-05), requiring readers to consult external material for full technical guidance","One short compliance timeframe (inspect within 10 hours time-in-service after the effective date) and a single corrective action (replace before further flight) — low nesting or conditionality"],"plain_english_summary":"**What this directive does (mechanics)\n\n- Who issued it: a delegate of the Civil Aviation Safety Authority (CASA) using powers under CAR 1998 subregulation 39.1(1).  \n- What it requires (Requirement): Inspect all Goodyear Flight Eagle tyres, size 34x9.25-16 18PR 210 MPH, part number 348F83-2, to see whether the tyre serial number falls in the range 0168xxxx through 0185xxxx. The inspection must follow Goodyear Service Bulletin GY SB 2001-32-006 (dated 28 July 2001) and the applicable Gulfstream Alert Customer Bulletin (No.28 for GIV, No.28 for GII/GIIB, or No.14 for GIII).  \n- If an affected tyre is found, it must be replaced before the aircraft flies again. (That is, “replace before further flight”.)  \n- Applicability: Gulfstream model GIV aircraft, serial numbers 1000–1213 except 1183; and Gulfstream models GII, GIIB and GIII (all serial numbers), but only when fitted with the specific Goodyear tyre part number above.  \n- Timing (Compliance): The inspection must be done within 10 hours time-in-service after 26 September 2001 (the AD’s effective date), unless it has already been done.  \n- Cross-references: The AD notes an FAA airworthiness directive (FAA AD 2001-18-05) and requires following the Goodyear and Gulfstream service/bulletin instructions named above.\n\nWhy it was issued (stated reason)\n\n- The FAA reported several instances of main landing gear tyre tread separation on Gulfstream aircraft. Tread separation can cause structural damage to aircraft components (for example, flaps, engine nacelles, wheel wells). The AD’s stated purpose is to correct that unsafe condition.\n\nWho this affects and who pays\n\n- Affected parties: operators and owners of the specific Gulfstream aircraft listed when those aircraft are fitted with the identified Goodyear tyre part and tyre serial numbers.  \n- Who decides: CASA issued the mandatory directive; aircraft operators/maintenance organisations decide how to schedule and carry out the inspections and replacements in line with the referenced service bulletins.  \n- Who pays: the aircraft operator or owner pays for labour, inspection time, and replacement tyres (including any logistical costs, taxi/ground time and downtime while tyres are removed/replaced).\n\nPractical effects, costs and trade-offs\n\n- Behavioural change required: operators must locate and inspect the specific tyres within the stated time window, and remove-and-replace any tyre whose serial number falls within the stated range before further flight.  \n- Immediate costs: labour for inspection, parts cost for any replacements, and aircraft downtime while tyres are inspected/replaced. If affected tyres are in short supply, operators may face delays or additional expense to source replacements.  \n- Risk mitigation vs cost: the AD forces a near-term cost on operators to reduce a risk of tyre tread separation that (if it occurred) could cause greater aircraft damage and safety risk.  \n- Implementation risks and compliance burden: accurate record-keeping of tyre serial numbers is required; maintenance personnel must be able to follow the referenced service bulletins; and operators must schedule inspections within the 10‑hour window. The AD is mandatory, so failure to comply would leave the operator non‑compliant with CASA requirements.\n\nEffects on private activity and markets\n\n- Competition and ownership: the AD imposes the same mandatory safety requirement on all affected operators; it does not reallocate ownership or change market structures.  \n- Supply effects: if many affected tyres need replacement simultaneously, local supply constraints could raise short-term prices or cause operational delays for some operators.  \n\nNotes on sources and authority\n\n- The AD relies on Goodyear and Gulfstream service/bulletin instructions for the technical inspection/replacement steps and references the FAA AD for the same unsafe condition. The directive uses CASA’s statutory AD power to make compliance mandatory (see CAR 1998 subregulation 39.1(1))."}},"importantCases":[],"_links":{"self":"/api/acts/ad-g1159-40-goodyear-flight-eagle-tyres","history":"/api/acts/ad-g1159-40-goodyear-flight-eagle-tyres/history","analysis":"/api/acts/ad-g1159-40-goodyear-flight-eagle-tyres/analysis","conflicts":"/api/acts/ad-g1159-40-goodyear-flight-eagle-tyres/conflicts","importantCases":"/api/acts/ad-g1159-40-goodyear-flight-eagle-tyres/important-cases","documents":"/api/acts/ad-g1159-40-goodyear-flight-eagle-tyres/documents"}}