{"id":"F2006B05856","name":"AD/PA-32/59 - Control Column Stop - Modification","slug":"ad-pa-32-59-control-column-stop-modification","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":135880,"registerId":"commonwealth-F2006B05856-current","compilationNumber":null,"startDate":"2026-04-03","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/PA-32/59 - Control Column Stop - 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)  Piper PA-32 (Cherokee Six) Series Aeroplanes\n\n \n\nAD/PA-32/59 Control Column Stop - Modification 12/78\n\nApplicability: All model PA-32RT-300 with S/Nos. 32R-7885001 to 32R- 7885216, 32R-7885218 to 32R-7885253, 32R-7885255, 32R- 7885257 to 32R-7885260. All model PA- 32RT-300T with S/Nos. 32R-7887001 to 32R-7887110, 32R-7887112 to 32R-\n\n7887173, 32R-7887175 to 32R-7887182, 32R-7887184 to 32R- 7881796, 32R-\n\n7887198 to 32R-7887291, 32R-7887203 to 32R- 7887205, 32R-7887207, 32R-\n\n7887208, 32R-7887210, 32R- 7887212 to 32R-7887215, 32R-7887217, 32R-\n\n7887218, 32R- 7887220, 32R-7887222, 32R-7887224 and 32R-7887226.\n\n \n\nDocument: 1. Piper SB No. 619; or\n\n \n\n2. FAA AD 78-22-07 Amendment 39-3332.\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":3,"scope_assessment":{"changed":false,"description":"This is a discrete, targeted safety directive focused on a specific mechanical defect in specific aircraft. It has not expanded beyond its original purpose of mandating a control column modification for the identified Piper models."},"complexity_factors":["Extremely short document (under 200 words)","No defined terms section — all language is technical but self-explanatory to aviation professionals","Simple conditional structure: if your aircraft serial number matches the list, you must comply","Complex serial number ranges with multiple gaps and exceptions (e.g., '32R-7885218 to 32R-7885253, 32R-7885255' — skipping 32R-7885254 and 32R-7885256)","No cross-references to other legislation beyond the two technical documents (Piper SB and FAA AD)","Single operative requirement with no nested exceptions or sub-conditions"],"plain_english_summary":"**What this is:** This is an **Airworthiness Directive (AD)** — a mandatory safety order issued by Australia's Civil Aviation Safety Authority (CASA) that requires specific repairs or modifications to aircraft.\n\n**What it does:** This directive orders owners and operators of specific Piper PA-32RT-300 and PA-32RT-300T \"Cherokee Six\" aeroplanes to modify the **control column stop** — a physical component that limits how far the pilot's control yoke (steering wheel) can move. This modification prevents the control column from moving too far in a way that could cause a dangerous flight condition.\n\n**Who it affects:** Only specific serial numbers of these two Piper aircraft models are covered — essentially, particular batches of planes manufactured in the late 1970s. The directive lists exact serial number ranges (for example, serial numbers from 32R-7885001 to 32R-7885216, with various gaps and exceptions).\n\n**What must be done:** Aircraft owners must follow one of two technical documents to make the modification:\n- **Piper Service Bulletin No. 619** (the manufacturer's official repair notice), OR\n- **FAA AD 78-22-07** (the equivalent American safety order)\n\n**Why it matters:** Control column stops prevent the pilot from over-controlling the aircraft, which could lead to loss of control or structural damage. This directive addresses a specific safety defect discovered in these aircraft models. Compliance is **legally mandatory** — you cannot legally fly these specific aircraft until the modification is done."},"flash_summary":{"complexity_score":4,"scope_assessment":{"changed":false,"description":"The directive, as presented, limits its scope to the specified PA-32RT-300 and PA-32RT-300T serial numbers and prescribes compliance by reference to two named technical documents. There is no indication in the text supplied that the scope has been broadened or altered from that stated intent."},"complexity_factors":["Narrow and detailed applicability defined by multiple serial number ranges creates identification and tracking costs for owners/operators.","Mandatory reliance on external technical documents (Piper SB No. 619 or FAA AD 78-22-07) requires access to and interpretation of those materials.","Practical implementation requires parts, qualified maintenance personnel and aircraft downtime, introducing operational logistics and scheduling complexity.","Limited textual detail in the directive itself (it delegates technical specifics to referenced documents), which concentrates technical complexity in external documents.","Potential for multiple serial-number exceptions and non-contiguous ranges increases administrative burden for registries and operators."],"plain_english_summary":"This directive mandates a physical modification of the control‑column stop on specific serial‑numbered Piper PA‑32RT‑300 and PA‑32RT‑300T aircraft to ensure safe control‑travel limits. Affected owners/operators must comply using the procedures in Piper Service Bulletin No. 619 or FAA AD 78‑22‑07, bearing the costs and downtime to maintain continued airworthiness."}},"importantCases":[],"_links":{"self":"/api/acts/ad-pa-32-59-control-column-stop-modification","history":"/api/acts/ad-pa-32-59-control-column-stop-modification/history","analysis":"/api/acts/ad-pa-32-59-control-column-stop-modification/analysis","conflicts":"/api/acts/ad-pa-32-59-control-column-stop-modification/conflicts","importantCases":"/api/acts/ad-pa-32-59-control-column-stop-modification/important-cases","documents":"/api/acts/ad-pa-32-59-control-column-stop-modification/documents"}}