{"id":"F2006B06168","name":"AD/PFP/1 Amdt 3 - Wooden Propellers - Inspection","slug":"ad-pfp-1-amdt-3-wooden-propellers-inspection","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":47003,"registerId":"commonwealth-F2006B06168-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/PFP/1 Amdt 3 - Wooden Propellers - Inspection","content":"COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 \\- 107 CIVIL AVIATION SAFETY AUTHORITY\n\nSCHEDULE OF AIRWORTHINESS DIRECTIVES\n\n![](image.001.png)  \nPropellers \\- Fixed Pitch\n\nAD/PFP/1\n\nAmdt 3\n\n  \nWooden Propellers \\- Inspection 7/89\n\nApplicability: All fixed pitch wooden and Hoffman composite series propellers. Requirement: 1. Newly installed propellers: Check the hub bolt nuts for tightness.\n\n    2. All propellers:\n\n    (a) Check the propeller for track.\n\n    (b) Check the hub bolt nuts for tightness.\n\n    (c) Inspect sheathing and tipping for looseness, separation of soldered joints, loose screws, cracks and corrosion.\n\n    3. Spinners, if fitted must be removed to carry out the above inspections.\n\nNote: For Hoffmann composite series propellers refer to Owners Manual No. EO110-74 for further inspection and rectification guidelines.\n\nCompliance: For para. 1 \\- After the first flight following each installation.\n\nFor para. 2 \\- After intervals not exceeding 100 hours time in service from installation or twelve months whichever occurs first.\n\nNote: In addition, it is recommended that the inspections of para. 2 above be repeated regardless of the time since last 100 hourly check, under the following circumstances:\n\n    (a) when there has been a significant change in the average ambient humidity, due to a seasonal change, or to a change in aircraft locality and,\n\n    (b) prior to first flight after the aircraft has been idle for an extended period.\n\nBackground: This Directive is amended to include a minor editorial change in the Compliance section.","sortOrder":0}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":2250},"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is Amendment 3, which the Background explicitly states only makes a 'minor editorial change in the Compliance section.' The substantive safety requirements, applicability to wooden and Hoffmann propellers, and inspection intervals remain identical to previous versions."},"complexity_factors":["Single-page directive with clear sequential numbering","Minimal defined terms (only standard aviation maintenance terms)","Simple conditional logic distinguishing newly installed versus existing propellers","Straightforward compliance triggers (100 hours or 12 months)","Single cross-reference to manufacturer manual presented as optional guidance"],"plain_english_summary":"This rule requires owners/operators of aircraft with fixed-pitch wooden or Hoffmann composite propellers to perform post-installation and recurring safety inspections to catch moisture, cracking, delamination, loose hub bolts, or tip/cover damage. Inspections must include track checks, hub-bolt tightness, nose‑cone removal, and occur every 100 flight hours or 12 months (and after long storage or major humidity changes).  \n\nIt matters because failing wooden propellers can cause catastrophic in‑flight structural or control loss."}},"importantCases":[],"_links":{"self":"/api/acts/ad-pfp-1-amdt-3-wooden-propellers-inspection","history":"/api/acts/ad-pfp-1-amdt-3-wooden-propellers-inspection/history","analysis":"/api/acts/ad-pfp-1-amdt-3-wooden-propellers-inspection/analysis","conflicts":"/api/acts/ad-pfp-1-amdt-3-wooden-propellers-inspection/conflicts","importantCases":"/api/acts/ad-pfp-1-amdt-3-wooden-propellers-inspection/important-cases","documents":"/api/acts/ad-pfp-1-amdt-3-wooden-propellers-inspection/documents"}}