{"id":"F2006B04981","name":"AD/CESSNA 170/53 Amdt 2 - Seat Adjustment Mechanism","slug":"ad-cessna-170-53-amdt-2-seat-adjustment-mechanism","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":44874,"registerId":"commonwealth-F2006B04981-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"172, 172A, 172B, 172C, 172D, 172E, 172F,","sectionType":"part","heading":"172, 172A, 172B, 172C, 172D, 172E, 172F, 172G,","content":"# 172, 172A, 172B, 172C, 172D, 172E, 172F, 172G,\n\n172H, 172I, 172K, 172L, 172M, 172N, 172P, 172Q\n\n  \nALL","sortOrder":0},{"sectionNumber":"R172, R172E, R172F, R172G, R172H, R172J ","sectionType":"part","heading":"R172, R172E, R172F, R172G, R172H, R172J ALL","content":"# R172, R172E, R172F, R172G, R172H, R172J ALL\n\nR172K R1722000 to R1723454\n\n172RG 172RG0001 to 172RG1191\n\n175, 175A 55001 to 56777\n\n175B, 175C 17556778 to 17557119\n\nFP172 FP172-0001 to FP172-0003","sortOrder":1},{"sectionNumber":"F172D, F172E, F172F, F172G, F172H, F172K","sectionType":"part","heading":"F172D, F172E, F172F, F172G, F172H, F172K, F172L, F172M, F172N, F172P, FR172E, FR172F, FR172G, FR172H, FR172J, FR172K.","content":"# F172D, F172E, F172F, F172G, F172H, F172K, F172L, F172M, F172N, F172P, FR172E, FR172F, FR172G, FR172H, FR172J, FR172K.\n\nRequirement: Part 1:\n\n  \nALL","sortOrder":2},{"sectionNumber":"FIGURE 2","sectionType":"part","heading":"FIGURE 2","content":"# FIGURE 2\n\n    (d) Visually inspect seat rollers for flat spots. Ensure all rollers and washers turn freely on their axle bolts (or bushings if installed) and move freely on the seat rails. Replace rollers having flat spots and any worn washers prior to further flight. If there is any binding between the bores of the rollers, washers, and axle bolts (or bushings if installed), remove, clean, and reinstall these parts prior to further flight.\n\nNote: Do not lubricate rollers, washers, axle bolts or bushings as the lubrication will attract dust and other particles which can cause binding.","sortOrder":3}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":3076},"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This appears to be Amendment 2 to an existing AD, but the provided fragment does not contain sufficient information to determine if the scope of affected aircraft or requirements has changed from previous versions."},"complexity_factors":["Fragmented and corrupted text with repetitive aircraft model listings","Single operative requirement (item d) with simple imperative language","No defined terms or complex cross-referencing in the surviving text","Straightforward maintenance instruction with clear prohibitions"],"plain_english_summary":"This AD requires operators of certain Cessna 172/175/R172 models to inspect seat adjustment mechanisms—checking rollers, washers, and axle bolts/bushings for flat spots, wear, or binding; ensure free movement; clean binding parts; and replace damaged rollers or worn washers before flight. Do not lubricate these parts.\n\nIt affects owners/operators of the listed aircraft and matters because stuck or degraded seat adjustments can impede proper pilot seating and compromise safety."}},"importantCases":[],"_links":{"self":"/api/acts/ad-cessna-170-53-amdt-2-seat-adjustment-mechanism","history":"/api/acts/ad-cessna-170-53-amdt-2-seat-adjustment-mechanism/history","analysis":"/api/acts/ad-cessna-170-53-amdt-2-seat-adjustment-mechanism/analysis","conflicts":"/api/acts/ad-cessna-170-53-amdt-2-seat-adjustment-mechanism/conflicts","importantCases":"/api/acts/ad-cessna-170-53-amdt-2-seat-adjustment-mechanism/important-cases","documents":"/api/acts/ad-cessna-170-53-amdt-2-seat-adjustment-mechanism/documents"}}