{"id":"F2006B06649","name":"AD/ROCK-114/3 - Cabin Air Vent - Modification","slug":"ad-rock-114-3-cabin-air-vent-modification","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":48571,"registerId":"commonwealth-F2006B06649-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/ROCK-114/3 - Cabin Air Vent - Modification","content":"---\nmeta-content-style-type: text/css\nmeta-content-type: application/xhtml+xml; charset=utf-8\nmeta-generator: Aspose.Words for .NET 22.10.0\n---\n\n?xml version=\"1.0\" encoding=\"utf-8\" standalone=\"no\"?>\n\nCOMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY\n\nSCHEDULE OF AIRWORTHINESS DIRECTIVES\n\n \n\n![](image.001.png)  Gulfstream (Rockwell) 114 Series Aeroplanes\n\n \n\nAD/ROCK-114/3 Cabin Air Vent - Modification 5/78\n\nApplicability: All models with S/Nos. listed in requirement document. Document: Rockwell SB No. SB-114-6.\n\nCompliance: Unless already accomplished, within 100 hours time in service after 30 June 1978.\n\n \n\nNote: When this Directive has been complied with the operator may apply to a Regional Airworthiness Office of the Department for the withdrawal of the flight manual “P” amendment to para. 3.4.\n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n","sortOrder":0}],"analysis":{"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a discrete, single-issue airworthiness directive from 1978 addressing a specific technical modification. It has not expanded beyond its original purpose of mandating a cabin air vent modification for a specific aircraft series."},"complexity_factors":["Very short document (under 200 words)","Only 2 defined references (the Service Bulletin and the flight manual amendment)","Single, clear compliance requirement with one time-based condition","No nested exceptions or conditional logic","Straightforward applicability statement referencing an external document","Minimal cross-referencing (only to the Service Bulletin and Civil Aviation Regulations Part 39)"],"plain_english_summary":"This is an **Airworthiness Directive (AD)** — a mandatory safety order issued by Australia's Civil Aviation Safety Authority (CASA) under the Civil Aviation Regulations 1998.\n\n**What it does:**\nRequires owners and operators of **Gulfstream (Rockwell) 114 series aircraft** to modify the **cabin air vent** system on specific planes.\n\n**Who it affects:**\n- Owners and operators of Rockwell 114 series aeroplanes with serial numbers listed in Rockwell Service Bulletin SB-114-6\n- Maintenance organisations servicing these aircraft\n\n**What must be done:**\n- Install the modification described in **Rockwell Service Bulletin SB-114-6**\n- Complete this work **within 100 hours of flight time** after 30 June 1978 (unless already done)\n\n**Why it matters:**\nAirworthiness Directives are legally binding safety instructions. Non-compliance means the aircraft cannot legally fly. This particular AD addresses a specific technical issue with cabin air vents that could affect passenger safety or aircraft operation.\n\n**Bonus note:** Once the modification is done, operators can apply to have a temporary flight manual amendment (the \"P\" amendment to paragraph 3.4) removed from their documentation."},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"The supplied text does not show any amendment or expansion of scope from an earlier version. It sets a single required modification applicable to aircraft with serial numbers listed in the requirement document, specifies the compliance deadline, and notes the administrative step for withdrawing a flight manual amendment after compliance. There is no indication in the supplied instrument that the scope has been altered from some prior stated intent."},"complexity_factors":["Dependence on an external service bulletin (Rockwell SB No. SB-114-6) for the technical method of compliance (Document).","Applicability determined by a separate requirement document listing serial numbers, requiring operators to consult that document to establish whether the AD applies (Applicability).","A fixed, historical compliance window tied to a specific date and hours-in-service metric (within 100 hours TIS after 30 June 1978) which creates a clear but time-sensitive obligation (Compliance).","Administrative follow-up action (application to a Regional Airworthiness Office to withdraw a flight manual amendment) which introduces an approval step beyond technical compliance (Note).","Legal placement within the Airworthiness Directives schedule and reference to Civil Aviation Regulations Part 39, which locates the instrument within a regulatory framework though the AD text itself is short (header)."],"plain_english_summary":"This instrument mandates a cabin-air-vent modification for specified Gulfstream (Rockwell) 114 series aeroplanes, to be performed per Rockwell Service Bulletin SB‑114‑6. It applies only to aircraft listed by serial number and must be completed within 100 hours time-in-service from 30 June 1978 unless already done.  \n\nOwners/operators must carry out the work and may apply to the Regional Airworthiness Office to have the temporary flight‑manual “P” amendment withdrawn after approval."}},"importantCases":[],"_links":{"self":"/api/acts/ad-rock-114-3-cabin-air-vent-modification","history":"/api/acts/ad-rock-114-3-cabin-air-vent-modification/history","analysis":"/api/acts/ad-rock-114-3-cabin-air-vent-modification/analysis","conflicts":"/api/acts/ad-rock-114-3-cabin-air-vent-modification/conflicts","importantCases":"/api/acts/ad-rock-114-3-cabin-air-vent-modification/important-cases","documents":"/api/acts/ad-rock-114-3-cabin-air-vent-modification/documents"}}