{"id":"F2007L01074","name":"AD/ROBIN/18 Amdt 1 - Shoulder Harness Installation","slug":"ad-robin-18-amdt-1-shoulder-harness-installation","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":65050,"registerId":"commonwealth-F2007L01074-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Robin Aviation Series Aeroplanes","sectionType":"division","heading":"Robin Aviation Series Aeroplanes","content":"### Robin Aviation Series Aeroplanes\n\n| AD/ROBIN/18 Amdt 1 | Shoulder Harness Installation | 5/2007 |\n| ------------------ | ----------------------------- | ------ |\n\n| Applicability: | All HR 100 models.                                                                                                                                                                                                                                                                                                                                                                                             |\n| -------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n| Requirement:   | If not already accomplished, install a shoulder harness to each front seat in accordance with a design acceptable to the Authority. The installation must ensure that the angle of the shoulder straps after passing over the occupant’s shoulder is between 5 degrees below and 30 degrees above the longitudinal axis of the aircraft.Note: FAA AC 21-34 gives guidance on acceptable harness installations. |\n| Compliance:    | If not already accomplished, prior to 10 November 2007.                                                                                                                                                                                                                                                                                                                                                        |\n|                | This Amendment becomes effective on 10 May 2007.                                                                                                                                                                                                                                                                                                                                                               |\n| Background:    | In the event of a crash landing, longitudinal loads will cause spinal compression if the attachment position of the shoulder harness is below the occupant’s shoulder. Refer FAA AC 21-34.This amendment expands the Applicability to all HR 100 models as the issue is common across the aircraft type.The original issue of this Airworthiness Directive became effective July 1994.                         |\n\n![](image.001.png)  \nJames Coyne  \nDelegate of the Civil Aviation Safety Authority\n\n28 March 2007","sortOrder":0},{"sectionNumber":"AD/ROBIN/18 Amdt 1","sectionType":"part","heading":"AD/ROBIN/18 Amdt 1","content":"## AD/ROBIN/18 Amdt 1","sortOrder":1},{"sectionNumber":"Shoulder Harness Installation","sectionType":"part","heading":"Shoulder Harness Installation","content":"## Shoulder Harness Installation","sortOrder":2},{"sectionNumber":"5/2007","sectionType":"part","heading":"5/2007","content":"## 5/2007","sortOrder":3}],"analysis":{"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":true,"description":"Yes. The amendment expands the Applicability to all HR 100 models (Background). The original AD (effective July 1994) covered a narrower set; this change increases the number of aircraft and owners/operators required to install shoulder harnesses."},"complexity_factors":["Technical installation specification: precise shoulder strap angle requirement (-5° to +30° relative to longitudinal axis) (Requirement).","Regulatory discretion: harness must be a \"design acceptable to the Authority\", requiring approval or acceptance by the regulator (Requirement).","Applicability expansion: amendment extends requirement to all HR 100 models, increasing the affected fleet (Background; Applicability).","Compliance deadline: mandatory completion by a fixed date creates scheduling and logistical constraints for owners/operators (Compliance).","Reference to external guidance (FAA AC 21-34) means implementers must align with non‑domestic advisory material (Requirement/Note).","Verification burden: inspectors/operators must be able to measure and demonstrate correct strap angle and approved design during compliance checks (implicit in Requirement)."],"plain_english_summary":"This amendment requires every Robin HR 100 aeroplane to have a shoulder harness fitted to each front seat, installed to a design acceptable to the Civil Aviation Safety Authority and with the shoulder strap angle between 5° below and 30° above the aircraft’s longitudinal axis (Requirement; Applicability). Owners/operators must complete installations by 10 November 2007 (Compliance). The stated safety rationale is to reduce spinal compression in crash landings (Background; Note: FAA AC 21-34)."},"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":"The amendment slightly expands applicability from some HR 100 models to all HR 100 models, but this is a minor technical expansion consistent with the original safety purpose. The scope remains tightly focused on shoulder harness installation for crash safety."},"complexity_factors":["Very short document (approximately 200 words of substantive content)","Only 1 defined term implied ('Authority' refers to CASA)","Single, clear operative requirement with one geometric condition (angle specification)","No cross-references to other legislation or regulations","Simple compliance deadline structure","Straightforward amendment history (expands applicability from subset to all models)"],"plain_english_summary":"Owners and operators of Robin HR 100 series aeroplanes must fit shoulder harnesses to both front seats at an installation angle between 5° below and 30° above horizontal (per FAA guidance). This CASA airworthiness directive—amending a 1994 order to cover all HR 100 models—was to be complied with by 10 November 2007 to reduce the risk of spinal compression injuries in crash landings."}},"importantCases":[],"_links":{"self":"/api/acts/ad-robin-18-amdt-1-shoulder-harness-installation","history":"/api/acts/ad-robin-18-amdt-1-shoulder-harness-installation/history","analysis":"/api/acts/ad-robin-18-amdt-1-shoulder-harness-installation/analysis","conflicts":"/api/acts/ad-robin-18-amdt-1-shoulder-harness-installation/conflicts","importantCases":"/api/acts/ad-robin-18-amdt-1-shoulder-harness-installation/important-cases","documents":"/api/acts/ad-robin-18-amdt-1-shoulder-harness-installation/documents"}}