{"id":"F2006B02981","name":"AD/B737/8 Amdt 2 - Evacuation Slide Compartment Latch Assembly","slug":"ad-b737-8-amdt-2-evacuation-slide-compartment-latch-assembly","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":42340,"registerId":"commonwealth-F2006B02981-current","compilationNumber":null,"startDate":"2026-04-01","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/B737/8 Amdt 2 - Evacuation Slide Compartment Latch Assembly","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 737 Series Aeroplanes\n\nAD/B737/8\n\nAmdt 2\n\n  \nEvacuation Slide Compartment Latch Assembly 9/87\n\nApplicability: All model B737 with S/Nos listed in the Requirement document. Requirement: Action in accordance with Boeing Alert SB 737-25A1182R4.\n\nNote: FAA AD 85-25-04 and FAA AD 86-05-04 refer.\n\nCompliance: Prior to 31 March 1986.\n\nBackground: During a B737 emergency evacuation, when the right hand forward service door was opened, the escape slide outer pack cover opened prematurely, blocking further opening of the door and allowing the escape slide to partially come out of the shell onto the aircraft floor. Amendment 2 of this Directive references Revision 4 of the Requirement document and the FAA ADs on this subject. Aircraft modified in accordance with Amendment 1 of this Directive do not require additional work.","sortOrder":0}],"analysis":{"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is Amendment 2 of an existing directive. The amendment simply updates the reference document to Revision 4 of the Boeing service bulletin and clarifies that aircraft already modified under Amendment 1 are exempt from additional work. The scope remains tightly focused on the original safety issue — the evacuation slide compartment latch assembly."},"complexity_factors":["Very short document (under 200 words)","Only 1 defined term implicitly referenced (the Boeing service bulletin)","Single, clear compliance action with no exceptions beyond the grandfathering clause for Amendment 1 aircraft","No nested conditional logic or cross-references to other legislation beyond the two cited FAA ADs","Straightforward applicability criteria (specific aircraft serial numbers)"],"plain_english_summary":"This is an **Airworthiness Directive** — a mandatory safety order issued by Australia's Civil Aviation Safety Authority (CASA) that requires specific repairs or inspections on aircraft.\n\n**What it does:**\nOrders owners and operators of certain Boeing 737 aeroplanes to fix a dangerous fault with the **evacuation slide compartment latch** — the mechanism that holds the emergency escape slide in its storage compartment near the doors.\n\n**The safety problem:**\nDuring an emergency evacuation, the outer cover of an escape slide at the right-hand forward service door opened too early. This blocked the door from opening fully and caused the slide to partially deploy inside the aircraft onto the floor — potentially trapping passengers inside during an emergency.\n\n**Who must act:**\nAll Boeing 737 aircraft with specific serial numbers listed in Boeing's Alert Service Bulletin 737-25A1182 Revision 4.\n\n**What must be done:**\nAircraft must be modified according to the instructions in that Boeing service bulletin. Aircraft already fixed under the previous version (Amendment 1) don't need to do anything extra.\n\n**Deadline:**\nThe work had to be completed before 31 March 1986.\n\n**Why it matters:**\nEmergency evacuation slides must deploy *outside* the aircraft, not inside. A slide blocking a door during an emergency could cost lives. This directive ensures the latch mechanism works correctly so slides stay contained until needed."},"flash_summary":{"complexity_score":2,"scope_assessment":{"changed":true,"description":"Amendment 2 updates the AD by referencing Revision 4 of the Boeing service bulletin as the required action and cross-references related FAA ADs; it also clarifies that aircraft modified under Amendment 1 do not require additional work. These adjustments change the required reference document and the set of aircraft that must repeat work (i.e. no repeat work for Amendment 1-modified aircraft), while keeping the underlying safety subject the same. (See: \"Requirement: Action in accordance with Boeing Alert SB 737-25A1182R4.\", \"Note: FAA AD 85-25-04 and FAA AD 86-05-04 refer.\", and \"Aircraft modified in accordance with Amendment 1 of this Directive do not require additional work.\")"},"complexity_factors":["Single, specific technical problem with a single mandated remedy (low conceptual complexity). (Source: \"Requirement: Action in accordance with Boeing Alert SB 737-25A1182R4.\")","Applicability limited to listed serial numbers, requiring operators to check the service bulletin for applicability details. (Source: \"Applicability: All model B737 with S/Nos listed in the Requirement document.\")","Relies on an external document (Boeing Alert Service Bulletin Revision 4) for the detailed work instructions, so the AD text alone does not contain procedural detail. (Source: \"Requirement: Action in accordance with Boeing Alert SB 737-25A1182R4.\")","Fixed compliance deadline imposes an operational scheduling constraint. (Source: \"Compliance: Prior to 31 March 1986.\")","Interplay with prior amendment: Amendment 1-modified aircraft are exempt, so operators must determine whether their aircraft were addressed previously. (Source: \"Aircraft modified in accordance with Amendment 1... do not require additional work.\")","Cross-reference to FAA ADs indicates coordination but requires operators to note related foreign directives. (Source: \"Note: FAA AD 85-25-04 and FAA AD 86-05-04 refer.\")"],"plain_english_summary":"This amendment to AD/B737/8 requires operators of the Boeing 737 airframes listed in Boeing Alert Service Bulletin 737-25A1182R4 to carry out that SB’s corrective work by 31 March 1986 to prevent premature opening of the escape-slide outer pack cover during door opening. Aircraft already modified under Amendment 1 are exempt; operators bear the cost and scheduling burden. The AD cross‑references related FAA directives."}},"importantCases":[],"_links":{"self":"/api/acts/ad-b737-8-amdt-2-evacuation-slide-compartment-latch-assembly","history":"/api/acts/ad-b737-8-amdt-2-evacuation-slide-compartment-latch-assembly/history","analysis":"/api/acts/ad-b737-8-amdt-2-evacuation-slide-compartment-latch-assembly/analysis","conflicts":"/api/acts/ad-b737-8-amdt-2-evacuation-slide-compartment-latch-assembly/conflicts","importantCases":"/api/acts/ad-b737-8-amdt-2-evacuation-slide-compartment-latch-assembly/important-cases","documents":"/api/acts/ad-b737-8-amdt-2-evacuation-slide-compartment-latch-assembly/documents"}}