{"id":"F2008L03364","name":"AD/PA-28/61 - Lower Cowl Drain - Inspection and Modification - CANCELLED","slug":"ad-pa-28-61-lower-cowl-drain-inspection-and-modification-cancelled","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":120279,"registerId":"commonwealth-F2008L03364-current","compilationNumber":null,"startDate":"2026-04-03","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Piper PA-28 Series Aeroplanes","sectionType":"division","heading":"Piper PA-28 Series Aeroplanes","content":"### Piper PA-28 Series Aeroplanes\n\n| AD/PA-28/61 | Lower Cowl Drain - Inspectionand Modification | 10/2008 |\n| ----------- | --------------------------------------------- | ------- |\n\n| Requirement: | CANCELLED.                                                                                                                                                                                                                                                         |\n| ------------ | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |\n|              | This AD is cancelled on 25 September 2008.                                                                                                                                                                                                                         |\n| Background:  | This unique Australian AD specified once-only inspection and modification of the fuel drain from the lower engine cowl in accordance with Piper SL No. 796. Compliance was required within 100 hours time in service after May 1977. The AD is no longer required. |\n\n![](image.001.png)\n\nJames Coyne  \nDelegate of the Civil Aviation Safety Authority\n\n6 August 2008","sortOrder":0},{"sectionNumber":"AD/PA-28/61","sectionType":"part","heading":"AD/PA-28/61","content":"## AD/PA-28/61","sortOrder":1},{"sectionNumber":"Lower Cowl Drain - Inspectionand Modific","sectionType":"part","heading":"Lower Cowl Drain - Inspectionand Modification","content":"## Lower Cowl Drain - Inspection  \nand Modification","sortOrder":2},{"sectionNumber":"10/2008","sectionType":"part","heading":"10/2008","content":"## 10/2008","sortOrder":3}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":1987},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"This instrument serves solely to cancel a previous airworthiness directive. Its scope is limited to removing compliance obligations, which is consistent with its stated purpose as a cancellation notice."},"complexity_factors":["Single operative provision (cancellation only)","No defined terms or interpretation section","No conditional logic, exceptions, or triggers","Minimal cross-referencing (only historical reference to Piper Service Letter No. 796)","Extremely brief document with no substantive obligations remaining"],"plain_english_summary":"This document officially cancels a previous aviation safety rule affecting **Piper PA-28 series aircraft** (light planes such as the Cherokee Warrior and Archer).\n\n**What it used to require**\nPreviously, Airworthiness Directive (AD) No. 61 mandated a one-time inspection and modification of the fuel drain located in the lower engine cowling. Owners had to complete this work within 100 hours of flight time after May 1977, following the manufacturer's guidelines (Piper Service Letter No. 796).\n\n**What changed**\nAs of **25 September 2008**, this requirement is abolished. The Civil Aviation Safety Authority (CASA) has determined the modification is no longer necessary for flight safety, so owners no longer need to comply.\n\n**Who is affected**\nOwners and operators of Piper PA-28 aircraft are no longer required to perform this specific inspection or maintain records proving compliance with this directive."}},"importantCases":[],"_links":{"self":"/api/acts/ad-pa-28-61-lower-cowl-drain-inspection-and-modification-cancelled","history":"/api/acts/ad-pa-28-61-lower-cowl-drain-inspection-and-modification-cancelled/history","analysis":"/api/acts/ad-pa-28-61-lower-cowl-drain-inspection-and-modification-cancelled/analysis","conflicts":"/api/acts/ad-pa-28-61-lower-cowl-drain-inspection-and-modification-cancelled/conflicts","importantCases":"/api/acts/ad-pa-28-61-lower-cowl-drain-inspection-and-modification-cancelled/important-cases","documents":"/api/acts/ad-pa-28-61-lower-cowl-drain-inspection-and-modification-cancelled/documents"}}