{"id":"F2008L02887","name":"AD/PA-23/65 - Automatic Pilot Roll Servo Shear Pin - Installation - CANCELLED","slug":"ad-pa-23-65-automatic-pilot-roll-servo-shear-pin-installation-cancelled","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":74778,"registerId":"commonwealth-F2008L02887-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Piper PA-23 (Apache and Aztec) Series Ae","sectionType":"division","heading":"Piper PA-23 (Apache and Aztec) Series Aeroplanes","content":"### Piper PA-23 (Apache and Aztec) Series Aeroplanes\n\n| AD/PA-23/65 | Automatic Pilot Roll ServoShear Pin - Installation | 9/2008 |\n| ----------- | -------------------------------------------------- | ------ |\n\n| Requirement: | CANCELLED.                                                                                                                                                                                                                                                                              |\n| ------------ | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n|              | This AD is cancelled on 28 August 2008.                                                                                                                                                                                                                                                 |\n| Background:  | This unique Australian AD specified a once-only modification of any PA-23 aircraft fitted with an Edo-Aire Mitchell Automatic Pilot. Modification was required in accordance with Piper SL No. 695 within 200 hours time in service after September 1974. The AD is no longer required. |\n\n![](image.001.png)\n\nJames Coyne  \nDelegate of the Civil Aviation Safety Authority\n\n16 July 2008","sortOrder":0},{"sectionNumber":"AD/PA-23/65","sectionType":"part","heading":"AD/PA-23/65","content":"## AD/PA-23/65","sortOrder":1},{"sectionNumber":"Automatic Pilot Roll ServoShear Pin - In","sectionType":"part","heading":"Automatic Pilot Roll ServoShear Pin - Installation","content":"## Automatic Pilot Roll Servo  \nShear Pin - Installation","sortOrder":2},{"sectionNumber":"9/2008","sectionType":"part","heading":"9/2008","content":"## 9/2008","sortOrder":3}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":1265},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":true,"description":"This instrument fundamentally reverses the original scope of AD/PA-23/65. Where the original 1974 directive mandated a specific mechanical modification (installation of a shear pin in the automatic pilot roll servo), this version removes that requirement entirely and cancels the directive, eliminating the compliance obligation for aircraft operators."},"complexity_factors":["Single operative provision (cancellation)","No defined terms section","Minimal background explanation only","No conditional logic or exceptions","Extremely short length (under 200 words)"],"plain_english_summary":"**What this does:** This instrument officially cancels a previous safety directive that required owners of specific Piper aircraft to install a shear pin in the automatic pilot roll servo mechanism.\n\n**Who it affects:** Owners and operators of Piper PA-23 (Apache and Aztec) series aeroplanes that were previously fitted with an Edo-Aire Mitchell Automatic Pilot.\n\n**Why it matters:** The original 1974 directive mandated a one-time mechanical modification (installing a specific shear pin) to prevent potential control issues. As of 28 August 2008, this modification is no longer required, removing the compliance burden for aircraft owners."}},"importantCases":[],"_links":{"self":"/api/acts/ad-pa-23-65-automatic-pilot-roll-servo-shear-pin-installation-cancelled","history":"/api/acts/ad-pa-23-65-automatic-pilot-roll-servo-shear-pin-installation-cancelled/history","analysis":"/api/acts/ad-pa-23-65-automatic-pilot-roll-servo-shear-pin-installation-cancelled/analysis","conflicts":"/api/acts/ad-pa-23-65-automatic-pilot-roll-servo-shear-pin-installation-cancelled/conflicts","importantCases":"/api/acts/ad-pa-23-65-automatic-pilot-roll-servo-shear-pin-installation-cancelled/important-cases","documents":"/api/acts/ad-pa-23-65-automatic-pilot-roll-servo-shear-pin-installation-cancelled/documents"}}