{"id":"F2006B07170","name":"AD/SWSA226/29 - Nose Baggage Compartment Door - Modification","slug":"ad-swsa226-29-nose-baggage-compartment-door-modification","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":49075,"registerId":"commonwealth-F2006B07170-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/SWSA226/29 - Nose Baggage Compartment Door - Modification","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)  \nFairchild (Swearingen) SA226 and SA227 Series Aeroplanes\n\nAD/SWSA226/29 Nose Baggage Compartment Door - Modification\n\n  \n8/79\n\nApplicability: All models SA-226-T with S/Nos. T201 to T291 except T276; All models SA-226- T(B) with S/Nos. T276 and T292 to T302; All models SA-226-AT with S/Nos.\n\nAT001 to AT071; All models SA-226-TC with S/Nos. TC201 to TC286.\n\nRequirement: To prevent the inside latches of nose baggage compartment door from becoming disengaged in flight by shifting baggage, accomplish the following:\n\nInstall striker plates on the nose baggage door frames and covers over the inside door latches in accordance with Swearingen Aviation Corporation SB No. SB 52-007 revised 29 May, 79.\n\nNote: FAA AD 79-13-07 Amendment 39-3503 prescribes this modification.\n\nCompliance: Within 100 hours time in service after 28 July 1979.\n\nBackground: A number of accidents have been caused to overseas aeroplanes by forward baggage locker doors opening during take-off.","sortOrder":0}],"analysis":{"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a discrete, targeted safety directive addressing a specific mechanical failure mode. It has not expanded beyond its original purpose of preventing nose baggage door latch failures."},"complexity_factors":["Single, specific technical requirement with clear physical modification","Limited applicability — only 4 specific aircraft model variants with defined serial number ranges","No nested exceptions or conditional logic; straightforward compliance deadline","Short document (approximately 150 words)","Only one defined reference (the Service Bulletin number)","Simple temporal compliance trigger (100 hours time in service after fixed date)"],"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 modifications to aircraft.\n\n**What it does:**\nOrders owners and operators of certain Fairchild (Swearingen) SA226 and SA227 series aircraft to install **striker plates** and **protective covers** on the nose baggage compartment doors. These additions prevent the internal door latches from accidentally opening if baggage shifts during flight.\n\n**Who it affects:**\n- Owners and operators of specific SA-226-T, SA-226-T(B), SA-226-AT, and SA-226-TC aircraft models with particular serial numbers (listed in the \"Applicability\" section)\n- Maintenance engineers working on these aircraft\n\n**Why it matters:**\nOverseas accidents occurred when forward baggage doors opened during take-off, potentially causing dangerous situations. This directive mandates a physical modification to prevent similar accidents in Australian-registered aircraft.\n\n**What must be done:**\nInstall the specified parts following Swearingen Aviation Corporation Service Bulletin SB 52-007 (revised 29 May 1979). This must be completed within **100 hours of flight time** after 28 July 1979.\n\n**Key point:** This mirrors an American FAA directive (AD 79-13-07), ensuring Australian aircraft meet the same safety standard."},"flash_summary":{"complexity_score":2,"scope_assessment":{"changed":false,"description":"The directive's scope matches its stated intent: to prevent nose baggage door latches disengaging from shifting baggage on the listed SA‑226/SA‑227 serial numbers by installing striker plates and covers per SB 52‑007, with a specified compliance timeframe. There is no expansion of affected aircraft or additional regulatory obligations beyond the installation requirement."},"complexity_factors":["Narrow applicability limited to specific SA‑226/SA‑227 serial‑number ranges, requiring operators to check serial numbers against the list.","Mandated installation must follow Swearingen Service Bulletin SB 52‑007 (rev. 29 May 1979), creating a dependency on that SB for technical detail.","Short compliance window: within 100 hours time‑in‑service after 28 July 1979, which can require prompt scheduling of maintenance.","Physical modification (striker plates and latch covers) implies parts procurement and hands‑on maintenance work by licensed personnel.","Operator responsibility for ensuring compliance and recording the modification in aircraft maintenance records.","Directive cross‑references FAA AD 79‑13‑07, implying harmonisation with overseas regulatory action."],"plain_english_summary":"This airworthiness directive requires operators of specified Fairchild (Swearingen) SA‑226/SA‑227 aircraft (listed by serial number) to fit striker plates and covers over the inside nose‑baggage‑door latches, following Swearingen Service Bulletin SB 52‑007 (rev. 29 May 1979). The modification mechanically prevents latch disengagement caused by shifting baggage. Compliance was required within 100 hours time‑in‑service after 28 July 1979, so affected owners/operators must instal the parts and record the change."}},"importantCases":[],"_links":{"self":"/api/acts/ad-swsa226-29-nose-baggage-compartment-door-modification","history":"/api/acts/ad-swsa226-29-nose-baggage-compartment-door-modification/history","analysis":"/api/acts/ad-swsa226-29-nose-baggage-compartment-door-modification/analysis","conflicts":"/api/acts/ad-swsa226-29-nose-baggage-compartment-door-modification/conflicts","importantCases":"/api/acts/ad-swsa226-29-nose-baggage-compartment-door-modification/important-cases","documents":"/api/acts/ad-swsa226-29-nose-baggage-compartment-door-modification/documents"}}