{"id":"F2006B10076","name":"AD/G159/32 Amdt 1 - Jumpseat Placard - Installation","slug":"ad-g159-32-amdt-1-jumpseat-placard-installation","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":55525,"registerId":"commonwealth-F2006B10076-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/G159/32 Amdt 1 - Jumpseat Placard - Installation","content":"COMMONWEALTH OF AUSTRALIA CIVIL AVIATION ORDERS CIVIL AVIATION SAFETY AUTHORITY PART 105 SCHEDULE OF AIRWORTHINESS DIRECTIVES\n\n![](image.001.png)  \nGULFSTREAM (GRUMMAN) G.159 SERIES AEROPLANES\n\nAD/G159/32 Amdt 1 Jumpseat Placard \\- Installation 6/78\n\nApplicability: All models.\n\nRequirement: To prevent injury to an occupant of any jumpseat located between fuselage stations 119 and 169, accomplish one of the following :-\n\n    Install a placard either on the bulkhead adjacent to the jumpseat or any equivalent location approved by the Secretary utilising a minimum of 3/16 inch (5mm) high lettering with the wording “JUMPSEAT OCCUPANCY DURING TAXI, TAKEOFF OR LANDING PROHIBITED”.\n\n    2. Modify in the following manner:\n\nInstall the nose landing gear drag strut (fused) or bulkhead modification in accordance with GAAC Service Change No. 226, Part 1 or Part 11 as applicable.\n\nThe placard described in sub-para. 1 may be removed on the incorporation of either modification detailed in sub-para. 2 or for the period of extension of compliance granted by concession.\n\nCompliance: Within 10 hours time in service after 15 May 1978, unless already accomplished.\n\nNote 1: No concession extending this compliance after 8 November 1979 shall be granted.\n\nNote 2: No concession extending this compliance to a date prior to 8 November 1979 shall be granted unless evidence of a firm commit ment by GAAC on the available date for the modification kit for that S/No. aircraft is supplied to the Secretary by\n\n21 July 1978.","sortOrder":0}],"analysis":{"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a narrow, targeted safety directive addressing a specific structural/safety issue with jumpseats in a particular aircraft series. It has not expanded beyond its original purpose of preventing occupant injury in designated seating locations."},"complexity_factors":["Very short document (under 300 words)","Only 2 defined compliance paths (placard or structural modification)","Single applicability criterion (all G.159 models)","Minimal cross-referencing (only to GAAC Service Change No. 226)","Simple conditional logic: placard can be removed only after modification or during approved extension","No nested definitions or interpretation sections"],"plain_english_summary":"This Airworthiness Directive mandates Gulfstream G.159 owners/operators to stop occupancy of certain fuselage jumpseats during taxi, takeoff and landing—either by installing a prominent warning placard or by completing a specified nose-landing-gear structural modification that eliminates the hazard. It affects anyone who owns, operates, or maintains these aircraft and matters because the identified jumpseat location poses a risk of passenger injury in critical flight phases. Compliance was required per the directive's timeline."},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":true,"description":"This instrument, labelled Amendment 1, imposes mandatory placard installation or the alternative structural modification, and sets a specific short compliance period plus tight concession limits—thereby altering the obligations on operators compared to the antecedent AD. Key provisions: Requirement (placard or GAAC Service Change No.226 modification), Compliance (10 hours after 15 May 1978), Note 1 (no concession past 8 November 1979) and Note 2 (evidence for earlier concessions by 21 July 1978)."},"complexity_factors":["Two alternative compliance paths: placard installation OR structural modification (Requirement).","Exact placard specification (minimum 3/16 inch / 5 mm lettering and specified wording) increases precision but not legal complexity (Requirement).","Reference to external technical documents for modification (GAAC Service Change No.226, Part 1 or Part 11) creates a dependency on external materials (Requirement).","Short, fixed compliance window (within 10 hours time in service after 15 May 1978) imposes operational scheduling pressure on operators (Compliance).","Secretary discretion to approve equivalent placard locations introduces administrative decision-making (Requirement).","Strict concession rules: no extension after 8 November 1979 (Note 1), and pre-8 November 1979 concessions require evidence of firm GAAC kit availability by 21 July 1978 (Note 2)."],"plain_english_summary":"This airworthiness directive requires operators of Gulfstream (Grumman) G.159 series aeroplanes to either fit a warning placard near any jumpseat between fuselage stations 119 and 169 or carry out a specified structural modification. The placard must use at least 5 mm high lettering and says \"JUMPSEAT OCCUPANCY DURING TAXI, TAKEOFF OR LANDING PROHIBITED\"; placards may be removed if the modification is installed. The Secretary approves equivalent placard locations; compliance is required within 10 hours time in service after 15 May 1978."},"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"}},"importantCases":[],"_links":{"self":"/api/acts/ad-g159-32-amdt-1-jumpseat-placard-installation","history":"/api/acts/ad-g159-32-amdt-1-jumpseat-placard-installation/history","analysis":"/api/acts/ad-g159-32-amdt-1-jumpseat-placard-installation/analysis","conflicts":"/api/acts/ad-g159-32-amdt-1-jumpseat-placard-installation/conflicts","importantCases":"/api/acts/ad-g159-32-amdt-1-jumpseat-placard-installation/important-cases","documents":"/api/acts/ad-g159-32-amdt-1-jumpseat-placard-installation/documents"}}