{"id":"F2006B02673","name":"AD/B727/150 - Main Deck Cargo Door","slug":"ad-b727-150-main-deck-cargo-door","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":41989,"registerId":"commonwealth-F2006B02673-current","compilationNumber":null,"startDate":"2026-04-01","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/B727/150 - Main Deck Cargo Door","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)  \nBoeing 727 Series Aeroplanes\n\nAD/B727/150 Main Deck Cargo Door 13/96 DM\n\nApplicability: This Directive is applicable to Model 727-100 and \\-200 series aeroplanes that have been modified in accordance with Federal Aviation Administration (FAA) Supplemental Type Certificate SA1797SO.\n\nRequirement: 1. If not previously accomplished, perform a visual inspection of the main deck cargo door control box for the following discrepancies:\n\n    chafed, crimped, crushed, or damaged electrical wires or wire bundles inside the control box;\n\n    b. loose electrical wire connections;\n\n    c. abnormally pulled or twisted individual wires or wire bundles;\n\n    d. any removal of insulation from the conductor in the control box; or\n\n    e. any damaged protective grommets.\n\n    2. Rectify any discrepancies found during the Requirement 1 inspection.\n\n    3. If not previously accomplished, ensure that the electrical wires or wire bundles are properly installed and restrained in accordance with the procedures contained in either of the following documents:\n\n    FAA Advisory Circular 43.13-1A Change 3 dated 1988 (Acceptable Methods, Techniques and Practices \\- Aircraft Inspection and Repair) Chapter 11, Sections 1, 3, 5, and 7.\n\n    b. Boeing Wiring Diagram Manual \\- Document D6-54446 Revision 21 dated 1 June 1994, Chapter 20.\n\n    4. Modify the wiring and components of the main deck cargo door control box in accordance with Aeronautical Engineers Inc Service Bulletin Report No R-AEID1 Revision A dated 3 September 1996.\n\nNote 1: FAA AD 96-16-08 Amdt 39-9708 refers. Note 2: A flight manual amendment is required.\n\nCompliance: Requirement 1 \\- Prior to 27 October 1996.\n\nRequirements 2 and 3 \\- Prior to further flight after the Requirement 1 inspection. Requirement 4 - Prior to 1 January 1997.\n\nThis Airworthiness Directive becomes effective on 23 October 1996.\n\nCOMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 \\- 105 CIVIL AVIATION SAFETY AUTHORITY\n\nSCHEDULE OF AIRWORTHINESS DIRECTIVES\n\nBackground: The FAA has advised that the results of an engineering review of the main deck cargo door control box wiring diagram revealed the potential for failures of the control box to occur, which could result in the inadvertent inflight opening of the main deck cargo door. Actions required by this Directive are intended to prevent such failures occurring.","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 implements inspections, repairs and a mandatory modification aimed at preventing inadvertent in-flight opening of the main deck cargo door—the same safety goal stated in the Background. It is limited to aeroplanes modified under STC SA1797SO and does not broaden applicability or add unrelated obligations; it translates the FAA engineering findings into specific operator actions with set deadlines (Background; Applicability; Requirements 1–4)."},"complexity_factors":["Targeted applicability: applies only to Model 727-100 and -200 aeroplanes modified under FAA STC SA1797SO (Applicability).","Technical inspection criteria: specific wiring defects listed (chafed/crimped/crushed wires, loose connections, pulled/twisted wires, removed insulation, damaged grommets) require visual checks (Requirement 1, a–e).","Remedial action required: any discrepancies must be rectified before further flight (Requirement 2), creating potential parts/workshop time and certification burden for operators.","Mandated compliance with external technical standards: wiring must be installed/restrained per FAA AC 43.13-1A (Chapter 11, sections cited) or Boeing Wiring Diagram Manual D6-54446 (Requirement 3), requiring access to and interpretation of those documents.","Modification obligation: a physical wiring/component modification must be carried out per Aeronautical Engineers Inc Service Bulletin R-AEID1 Revision A (Requirement 4), introducing coordination with the service bulletin and possible downtime.","Administrative requirement: a flight manual amendment is mandated (Note 2), adding documentation and regulatory conformity work.","Fixed deadlines and operational impact: short compliance windows for inspection and modification, and prohibition on further flight until Requirements 2/3 are met (Compliance), which can force grounding and scheduling changes.","Cross-reference to FAA AD: the Directive refers to FAA AD 96-16-08 (Note 1), so operators must track and reconcile linked regulatory material."],"plain_english_summary":"This Directive requires operators of Boeing 727-100/200 aeroplanes modified under FAA STC SA1797SO to inspect, repair and then modify the main-deck cargo-door control-box wiring and components to prevent possible in-flight opening. It prescribes a visual inspection for specific wiring defects, immediate rectification, reinstallation per FAA/Boeing wiring guidance, modification per an Aeronautical Engineers Inc service bulletin, and a flight‑manual amendment (Requirements 1–4; Compliance dates). Operators pay for work and must not fly until relevant requirements are complied with; CASA enforces compliance."},"kimi_summary":{"content_quality":"ok","complexity_score":3,"scope_assessment":{"changed":false,"description":"This Airworthiness Directive maintains its original, narrow scope. It addresses a specific safety issue identified by the FAA regarding wiring in the main deck cargo door control box of modified Boeing 727 aircraft. The directive does not expand beyond this original technical safety purpose."},"complexity_factors":["Single, specific technical subject matter (cargo door wiring on one aircraft type)","Four sequential requirements with clear deadlines and dependencies","References to external technical documents (FAA Advisory Circular, Boeing manual, service bulletin) without reproducing their content","Limited defined terms (only 'Applicability' and specific model references)","No nested conditional logic or exceptions to exceptions","Straightforward compliance structure with three distinct deadlines"],"plain_english_summary":"This Airworthiness Directive orders owners/operators of Boeing 727-100/200 aircraft modified under FAA STC SA1797SO to inspect and repair wiring in the main deck cargo door control box to prevent inadvertent door opening in flight. Inspections, repairs and wiring modification must be completed by the stated deadlines (inspections by 27 Oct 1996, modification by 1 Jan 1997) and a flight manual update is required. Effective 23 Oct 1996."}},"importantCases":[],"_links":{"self":"/api/acts/ad-b727-150-main-deck-cargo-door","history":"/api/acts/ad-b727-150-main-deck-cargo-door/history","analysis":"/api/acts/ad-b727-150-main-deck-cargo-door/analysis","conflicts":"/api/acts/ad-b727-150-main-deck-cargo-door/conflicts","importantCases":"/api/acts/ad-b727-150-main-deck-cargo-door/important-cases","documents":"/api/acts/ad-b727-150-main-deck-cargo-door/documents"}}