{"id":"F2006B05916","name":"AD/PA-34/46 Amdt 1 - Main Landing Gear Side Brace Stud","slug":"ad-pa-34-46-amdt-1-main-landing-gear-side-brace-stud","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":135993,"registerId":"commonwealth-F2006B05916-current","compilationNumber":null,"startDate":"2026-04-03","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Model Serial Numbers","sectionType":"part","heading":"Model Serial Numbers","content":"# Model Serial Numbers\n\nPA34-200 all serial numbers\n\nPA34-200T 34-7570001 through 34-7770372\n\nRequirement: Remove both the left and right main gear side brace studs from the aircraft in accordance with the instructions contained in the Landing Gear section of the maintenance manual, and inspect each main gear side brace stud for cracks using fluorescent penetrant or magnetic particle inspection methods. Figure 1 of this Directive depicts the area where the sidebrace stud is to be inspected.\n\nThis figure is provided to depict the area of the sidebrace stud to be inspected. This is not intended to represent the configuration of all models affected.\n\nNote 1: A part number 95299-00 or 95299-02 stud installed in an applicable Model PA34-200 or PA34-200T aircraft may be identified by removing the stud and measuring the shank diameter of the stud. If the shank measures 5/8 inch in diameter, a part number 78717-02 main gear side brace stud is installed.\n\nFor any main gear side brace stud found cracked, replace the cracked stud with an approved serviceable part in accordance with the instructions contained in the Landing Gear section of the applicable maintenance manual.","sortOrder":0}],"analysis":{"kimi_summary":{"content_quality":"ok","complexity_score":3,"scope_assessment":{"changed":false,"description":"This is a focused safety directive addressing a specific mechanical defect in defined aircraft models. It has not expanded beyond its original purpose of mandating inspection and replacement of cracked landing gear studs."},"complexity_factors":["Limited conditional logic — only one clear condition (if cracked, then replace)","Specific but narrow applicability — only two aircraft models with defined serial number ranges","Contains one cross-reference to aircraft maintenance manuals for procedural details","Includes one technical identification method (measuring shank diameter to determine part number)","Short, single-purpose document with no nested exceptions or extensive definitions"],"plain_english_summary":"This airworthiness directive orders owners and maintenance personnel of certain Piper PA‑34‑200 and PA‑34‑200T Seneca aircraft to remove and inspect the main landing‑gear side‑brace studs for fatigue cracks using fluorescent penetrant or magnetic particle methods, and to replace any cracked stud with an approved part. It targets affected operators and licensed mechanics to prevent gear collapse and catastrophic accidents."},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"The text prescribes inspections and replacements for expressly listed PA34-200 and PA34-200T serials and provides a method to identify certain part numbers. It does not, on its face, expand or narrow applicability beyond those specified aircraft or alter other airworthiness obligations."},"complexity_factors":["Narrow applicability by model and serial number (PA34-200: all; PA34-200T: 34-7570001–34-7770372) — requires accurate aircraft identification","Technical non-destructive testing methods prescribed (fluorescent penetrant inspection or magnetic particle inspection) — needs trained personnel/equipment (Requirement)","Requirement to remove studs before inspection increases labour/time and maintenance access complexity (Requirement)","Part identification by measuring shank diameter for specific part-number determination (Note 1) — potential measurement/interpretation issues","Dependence on the Landing Gear section of the maintenance manual for removal/installation instructions — limited procedural discretion (Requirement)","Figure 1 defines the inspection area but is not intended to represent all model configurations, introducing some ambiguity about exact inspection geometry"],"plain_english_summary":"This directive requires operators of specified Piper PA34-200 and PA34-200T serial numbers to remove both left and right main-gear side-brace studs and inspect each stud for cracks using fluorescent penetrant or magnetic particle inspection (FPI or MPI). (Requirement)\n\nIf a stud is cracked it must be replaced with an approved serviceable part and identification of certain part numbers is by measuring the stud shank diameter. Compliance follows the aircraft Landing Gear maintenance manual. (Requirement; Note 1)"}},"importantCases":[],"_links":{"self":"/api/acts/ad-pa-34-46-amdt-1-main-landing-gear-side-brace-stud","history":"/api/acts/ad-pa-34-46-amdt-1-main-landing-gear-side-brace-stud/history","analysis":"/api/acts/ad-pa-34-46-amdt-1-main-landing-gear-side-brace-stud/analysis","conflicts":"/api/acts/ad-pa-34-46-amdt-1-main-landing-gear-side-brace-stud/conflicts","importantCases":"/api/acts/ad-pa-34-46-amdt-1-main-landing-gear-side-brace-stud/important-cases","documents":"/api/acts/ad-pa-34-46-amdt-1-main-landing-gear-side-brace-stud/documents"}}