{"id":"F2008L03694","name":"AD/PA-24/34 - Automatic Pilot Roll Servo Shear Pin - Installation - CANCELLED","slug":"ad-pa-24-34-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repealed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":75399,"registerId":"commonwealth-F2008L03694-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Piper PA-24 (Comanche) Series Aeroplanes","sectionType":"division","heading":"Piper PA-24 (Comanche) Series Aeroplanes","content":"### Piper PA-24 (Comanche) Series Aeroplanes\n\n| AD/PA-24/34 | Automatic Pilot Roll ServoShear Pin - Installation | 11/2008 |\n| ----------- | -------------------------------------------------- | ------- |\n\n| Requirement: | CANCELLED.                                                                                                                                                                                                                                                       |\n| ------------ | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n|              | This AD is cancelled on 23 October 2008.                                                                                                                                                                                                                         |\n| Background:  | This unique Australian AD specified modification of any installed automatic pilot in accordance with Piper SL No. 695 or Edo-Aire Mitchell SL ML38. Compliance was required within 200 hours time in service after September 1974. The AD is no longer required. |\n\n![](image.001.png)\n\nCharles Lenarcic  \nDelegate of the Civil Aviation Safety Authority\n\n11 September 2008","sortOrder":0},{"sectionNumber":"AD/PA-24/34","sectionType":"part","heading":"AD/PA-24/34","content":"## AD/PA-24/34","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":"11/2008","sectionType":"part","heading":"11/2008","content":"## 11/2008","sortOrder":3}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":2288},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":true,"description":"The instrument has transformed from an active safety mandate imposing a mandatory mechanical modification into a simple revocation notice. The regulatory obligation has been completely eliminated rather than modified."},"complexity_factors":["Single operative provision (cancellation)","No defined terms or interpretation section","No conditional logic, exceptions, or cross-references to other legislation","Historical background provided for reference only with no legal force"],"plain_english_summary":"**What this does:** This document officially cancels (revokes) a previous aviation safety requirement for certain Piper aircraft.\n\n**Who it affects:** Owners and operators of Piper PA-24 (Comanche) series aeroplanes who were previously required to modify their automatic pilot systems.\n\n**The backstory:** The original rule (AD/PA-24/34) required installation of a shear pin in the automatic pilot's roll servo — a safety device to prevent damage — following specific manufacturer instructions (Piper SL No. 695 or Edo-Aire Mitchell SL ML38). Owners had to complete this within 200 hours of flight time after September 1974.\n\n**What changes now:** As of 23 October 2008, this modification is **no longer mandatory**. The safety requirement has been removed because it is no longer considered necessary."}},"importantCases":[],"_links":{"self":"/api/acts/ad-pa-24-34-automatic-pilot-roll-servo-shear-pin-installation-cancelled","history":"/api/acts/ad-pa-24-34-automatic-pilot-roll-servo-shear-pin-installation-cancelled/history","analysis":"/api/acts/ad-pa-24-34-automatic-pilot-roll-servo-shear-pin-installation-cancelled/analysis","conflicts":"/api/acts/ad-pa-24-34-automatic-pilot-roll-servo-shear-pin-installation-cancelled/conflicts","importantCases":"/api/acts/ad-pa-24-34-automatic-pilot-roll-servo-shear-pin-installation-cancelled/important-cases","documents":"/api/acts/ad-pa-24-34-automatic-pilot-roll-servo-shear-pin-installation-cancelled/documents"}}