{"id":"F2006B05860","name":"AD/PA-32/63 - Turbocharger Exhaust System - Inspection","slug":"ad-pa-32-63-turbocharger-exhaust-system-inspection","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":135884,"registerId":"commonwealth-F2006B05860-current","compilationNumber":null,"startDate":"2026-04-03","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/PA-32/63 - Turbocharger Exhaust System - Inspection","content":"COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 \\- 105 CIVIL AVIATION SAFETY AUTHORITY\n\nSCHEDULE OF AIRWORTHINESS DIRECTIVES\n\n![](image.001.png)  \nPiper PA-32 (Cherokee Six) Series Aeroplanes\n\nAD/PA-32/63 Turbocharger Exhaust System \\- Inspection 7/79\n\nApplicability: Model PA-32RT-300T with S/Nos. 32R-7887001 to 32R-7987126. Requirement: 1. Remove turbocharger exhaust coupling P/N 556108 and tailpipe P/N 98705-2.\n\n    2. Using either a dye penetrant method or a 10X lens, inspect coupling, coupling bolt, tailpipe and tailpipe flange for cracks, deformation and damage.\n\n    3. Measure width across inside opening of coupling retainer segments. Maximum allowable dimension is 0.350 inches (See Figure 1.).\n\n    4. Measure thickness of tailpipe flange at apex. Dimension required is 0.096 inches plus or minus 0.005 inches (See Figure 1.).\n\n    5. If flange dimension is under the tolerance shown in (4) above, replace tailpipe. If over tolerance, rework the flange mating surface to dimensions in (4) above, provided 0.005 inches flatness is maintained, or replace with serviceable part.\n\n    6. Replace any exhaust system part found cracked, deformed or damaged.\n\nNote: During installation of serviceable parts ensure turbocharger and tailpipe flanges are properly aligned. Tap coupling gently to distribute band tension while tightening coupling nut. Torque coupling nut to 40-50 inch pounds and lockwire.\n\nCompliance: Within 10 hours time in service after 2 July 1979.\n\nBackground: The FAA reports failures of the turbocharger exhaust system due to cracking and deformation. Leakage of hot gases in this area will cause a fire hazard.\n\nCOMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 \\- 105 CIVIL AVIATION SAFETY AUTHORITY\n\nSCHEDULE OF AIRWORTHINESS DIRECTIVES\n\n![](image.002.png)","sortOrder":0}],"analysis":{"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"},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"The directive's scope is consistent with its stated purpose: it targets a specific subset of PA-32RT-300T serial numbers and prescribes inspection, measurement, and corrective actions directly addressing reported turbocharger exhaust failures. It does not expand operational limits or introduce ongoing monitoring beyond the prescribed inspection and repair requirements; costs and compliance obligations fall to aircraft owners/operators and their maintenance providers."},"complexity_factors":["Narrow applicability: only Model PA-32RT-300T with S/N 32R-7887001 to 32R-7987126 are affected (clear, but limits number of aircraft).","Technical inspection requirements: dye penetrant or 10X lens inspection and specific dimensional measurements (coupling retainer max 0.350 in; tailpipe flange 0.096 ± 0.005 in).","Acceptable corrective options: replace parts found cracked/deformed/damaged; rework flange to tolerance only if 0.005 in flatness maintained (creates judgement calls during repair).","Assembly specification: torque coupling nut to 40–50 inch‑pounds and lockwire, and ensure flange alignment (operator/maintenance action required).","Short compliance window: compliance required within 10 hours time in service after 2 July 1979 (logistics and downtime pressure for owners/operators).","Reference to Figure 1 for geometry (figure not included here increases reliance on referenced drawing for exact measurement points).","Regulatory context: issued under Civil Aviation Regulations PART 39–105 (enforcement and recordkeeping responsibilities rest with operator/approved maintenance organisations).","Safety-critical consequence: directive responds to FAA-reported failures that can cause fire hazard (heightens need for accurate inspection and timely repair)."],"plain_english_summary":"This airworthiness directive requires immediate inspection and measurement of the turbocharger exhaust coupling and tailpipe on specific Piper PA-32RT-300T aeroplanes, with rework or replacement where parts are cracked, deformed, or out of tolerance. It targets owners/operators of the listed serial-numbered aircraft and must be complied with within 10 hours of service because the FAA reported cracking that can leak hot gases and create a fire hazard."},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a discrete, targeted safety directive addressing a specific mechanical defect in a specific aircraft model. It has not expanded beyond its original purpose of preventing turbocharger exhaust system failures."},"complexity_factors":["Single, specific aircraft model and serial number range (narrow applicability)","Six sequential procedural steps with clear measurements and tolerances","Only 2 defined part numbers referenced","No cross-references to other legislation or regulations","Single compliance deadline with straightforward calculation (10 hours time in service after fixed date)","Plain language background explanation included","One simple conditional: if flange dimension under tolerance, replace; if over, rework or replace"],"plain_english_summary":"This CASA Airworthiness Directive orders owners/operators of specified Piper PA-32RT-300T Cherokee Six aircraft (serials 32R-7887001 to 32R-7987126) to inspect and, if needed, repair or replace turbocharger exhaust coupling and tailpipe parts because reported cracking/deformation can leak hot gases and cause in‑flight fires.\n\nIt requires removal, dye‑penetrant or magnified inspection, critical dimension checks, correction of out‑of‑tolerance or damaged parts, and correct reinstallation (alignment, torque, lockwire); compliance within 10 flight hours after 2 July 1979."}},"importantCases":[],"_links":{"self":"/api/acts/ad-pa-32-63-turbocharger-exhaust-system-inspection","history":"/api/acts/ad-pa-32-63-turbocharger-exhaust-system-inspection/history","analysis":"/api/acts/ad-pa-32-63-turbocharger-exhaust-system-inspection/analysis","conflicts":"/api/acts/ad-pa-32-63-turbocharger-exhaust-system-inspection/conflicts","importantCases":"/api/acts/ad-pa-32-63-turbocharger-exhaust-system-inspection/important-cases","documents":"/api/acts/ad-pa-32-63-turbocharger-exhaust-system-inspection/documents"}}