{"id":"F2009L00139","name":"AD/PA-23/77 Amdt 1 - Forward Baggage Door Locking System - Inspection and Modification - CANCELLED","slug":"ad-pa-23-77-amdt-1-forward-baggage-door-locking-system-inspection-and-modification-cancelled","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":76574,"registerId":"commonwealth-F2009L00139-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Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Piper PA-23 (Apache and Aztec) Series Ae","sectionType":"division","heading":"Piper PA-23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-23/77 Amdt 1 | Forward Baggage Door LockingSystem - Inspection and Modification | 2/2009 |\n| ------------------ | ---------------------------------------------------------------- | ------ |\n\n| Requirement: | CANCELLED.                                                                                                                                                                                                                                  |\n| ------------ | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n|              | This AD is cancelled on 12 February 2009.                                                                                                                                                                                                   |\n| Background:  | This unique Australian AD specified once-only inspection and modification of the forward baggage door locking system in accordance with Piper SB No. 604A within 100 hours time in service after August 1979. The AD is no longer required. |\n\n![](image.001.png)\n\nDavid Punshon  \nDelegate of the Civil Aviation Safety Authority\n\n23 December 2008","sortOrder":0},{"sectionNumber":"AD/PA-23/77 Amdt 1","sectionType":"part","heading":"AD/PA-23/77 Amdt 1","content":"## AD/PA-23/77 Amdt 1","sortOrder":1},{"sectionNumber":"Forward Baggage Door LockingSystem - Ins","sectionType":"part","heading":"Forward Baggage Door LockingSystem - Inspection and Modification","content":"## Forward Baggage Door Locking  \nSystem - Inspection and Modification","sortOrder":2},{"sectionNumber":"2/2009","sectionType":"part","heading":"2/2009","content":"## 2/2009","sortOrder":3}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":1114},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"The instrument has been entirely cancelled rather than expanded. The scope is now nil — no obligations remain."},"complexity_factors":["Single operative provision consisting of the word 'CANCELLED'","No cross-references to other legislation or regulations","No conditional logic, exceptions, or defined terms","Extremely short document with purely historical background information"],"plain_english_summary":"**This aviation safety rule has been cancelled and no longer applies.**\n\nThis document formally cancels Airworthiness Directive AD/PA-23/77 Amdt 1, which previously required owners of **Piper PA-23 Apache and Aztec aircraft** to inspect and modify the forward baggage door locking system.\n\n**What it used to require:**\n- A one-time inspection and modification of the baggage door lock\n- Had to be done within 100 hours of flying time after August 1979\n- Followed specific manufacturer instructions (Piper Service Bulletin No. 604A)\n\n**Current status (as of 12 February 2009):**\n- **Completely cancelled** — aircraft owners no longer need to comply with this requirement\n- The Civil Aviation Safety Authority determined this safety directive was no longer necessary\n\nThis cancellation removes an outdated maintenance obligation for these specific twin-engine aircraft."}},"importantCases":[],"_links":{"self":"/api/acts/ad-pa-23-77-amdt-1-forward-baggage-door-locking-system-inspection-and-modification-cancelled","history":"/api/acts/ad-pa-23-77-amdt-1-forward-baggage-door-locking-system-inspection-and-modification-cancelled/history","analysis":"/api/acts/ad-pa-23-77-amdt-1-forward-baggage-door-locking-system-inspection-and-modification-cancelled/analysis","conflicts":"/api/acts/ad-pa-23-77-amdt-1-forward-baggage-door-locking-system-inspection-and-modification-cancelled/conflicts","importantCases":"/api/acts/ad-pa-23-77-amdt-1-forward-baggage-door-locking-system-inspection-and-modification-cancelled/important-cases","documents":"/api/acts/ad-pa-23-77-amdt-1-forward-baggage-door-locking-system-inspection-and-modification-cancelled/documents"}}