{"id":"F2006B02894","name":"AD/B737/193 - Flight Deck Emergency Windows","slug":"ad-b737-193-flight-deck-emergency-windows","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":42236,"registerId":"commonwealth-F2006B02894-current","compilationNumber":null,"startDate":"2026-04-01","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"AIRWORTHINESS DIRECTIVE","sectionType":"part","heading":"AIRWORTHINESS DIRECTIVE","content":"# AIRWORTHINESS DIRECTIVE\n\n![](image.001.png)\n\n![](image.001.png)  \nFor the reasons set out in the background section, the CASA delegate whose signature appears below issues the following Airworthiness Directive (AD) under subregulation 39.1 (1) of CAR 1998. The AD requires that the action set out in the requirement section (being action that the delegate considers necessary to correct the unsafe condition) be taken in relation to the aircraft or aeronautical product mentioned in the applicability section: (a) in the circumstances mentioned in the requirement section; and (b) in accordance with the instructions set out in the requirement section; and (c) at the time mentioned in the compliance section.\n\nBoeing 737 Series Aeroplanes","sortOrder":0},{"sectionNumber":"AD/B737/193 Flight Deck Emergency Window","sectionType":"part","heading":"AD/B737/193 Flight Deck Emergency Windows 11/2002","content":"# AD/B737/193 Flight Deck Emergency Windows 11/2002\n\nApplicability: Model 737-600, \\-700, and \\-800 series aircraft, line numbers 1 through 144. Requirement: Action in accordance with the technical requirements of FAA AD 99-26-10 Amdt 39-\n\n11469.\n\nNote: Boeing Alert Service Bulletin 737-56-1011 refers.\n\nCompliance: As specified in the Requirement document, with a revised effective date of 31 October 2002.\n\nThis Airworthiness Directive becomes effective on 31 October 2002.\n\nBackground: The FAA received reports that flight deck emergency exits (number 2 windows) were found frozen shut after landing. This Directive requires certain actions to prevent water accumulation in the lower corners of the flight deck emergency exits, which can freeze and prevent the exits from being used during an emergency evacuation.\n\n![Signature of David Villiers, Delegate of the Civil Aviation Safety Authority.](image.002.jpeg)  \n\nDavid Alan Villiers\n\nDelegate of the Civil Aviation Safety Authority 12 September 2002\n\n![](image.001.png)","sortOrder":1}],"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 instrument retains a focused scope: it applies only to Boeing 737‑600/‑700/‑800 aircraft line numbers 1–144 and mandates the corrective measures specified in the referenced FAA AD and Boeing Alert Service Bulletin to address frozen flight‑deck emergency windows (Applicability; Requirement; Note; Background)."},"complexity_factors":["Cross-reference to external FAA AD rather than restating technical steps increases dependency on another document for required action (Requirement).","Reference to Boeing Alert Service Bulletin as informational source means operators must obtain and interpret manufacturer guidance (Note).","Narrow applicability by model and line numbers limits affected fleet but requires precise fleet identification (Applicability).","Revised effective/compliance date creates a fixed compliance deadline that operators must meet (Compliance).","Regulatory authority exercised under CAR 1998 subreg 39.1(1) places decision to mandate corrective action with CASA delegate (preamble/signature).","Technical detail of actual inspection/modification steps and cost/ labour estimates are not contained here, shifting implementation planning burden to operators (Requirement/Note)."],"plain_english_summary":"This Airworthiness Directive requires operators of Boeing 737‑600/‑700/‑800 aircraft (line numbers 1–144) to carry out the corrective actions set out in FAA AD 99‑26‑10 (referenced via Boeing Alert Service Bulletin 737‑56‑1011) to prevent water accumulating in the lower corners of flight‑deck emergency windows. Operators must perform the inspections/modifications by the compliance date (effective 31 October 2002) so the exits do not freeze shut after landing and remain usable in an evacuation."},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This AD maintains its original narrow scope — addressing a specific safety defect in specific Boeing 737 models. It has not expanded beyond its original purpose of preventing emergency window freezing."},"complexity_factors":["Very short document (under 300 words)","Only 3 defined elements: applicability (specific aircraft models), requirement (reference to external FAA document), and compliance date","No nested conditions or exceptions — single straightforward requirement","No cross-references to other Australian legislation beyond the enabling regulation (CAR 1998 subreg 39.1(1))","Relies entirely on external technical document (FAA AD 99-26-10) for actual implementation details"],"plain_english_summary":"This Airworthiness Directive requires operators of certain Boeing 737-600/-700/-800 (production line 1–144) to follow FAA AD 99-26-10 and a Boeing service bulletin to stop water pooling in pilots’ emergency escape window corners. If left, trapped water can freeze and jam the windows, preventing emergency egress.\n\nIt matters because frozen, inoperable cockpit escape windows could prevent evacuation during fire or other emergencies; compliance was required by 31 October 2002."}},"importantCases":[],"_links":{"self":"/api/acts/ad-b737-193-flight-deck-emergency-windows","history":"/api/acts/ad-b737-193-flight-deck-emergency-windows/history","analysis":"/api/acts/ad-b737-193-flight-deck-emergency-windows/analysis","conflicts":"/api/acts/ad-b737-193-flight-deck-emergency-windows/conflicts","importantCases":"/api/acts/ad-b737-193-flight-deck-emergency-windows/important-cases","documents":"/api/acts/ad-b737-193-flight-deck-emergency-windows/documents"}}