{"id":"F2006B04011","name":"AD/BEECH 55/67 Amdt 1 - Fuselage Seat Attachment Brackets","slug":"ad-beech-55-67-amdt-1-fuselage-seat-attachment-brackets","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":43620,"registerId":"commonwealth-F2006B04011-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/BEECH 55/67 Amdt 1 - Fuselage Seat Attachment Brackets","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)  \nBeechcraft 55, 58 and 95-55 (Baron) Series Aeroplanes\n\nAD/BEECH 55/67\n\nAmdt 1\n\n  \nFuselage Seat Attachment Brackets 8/85 TX\n\nApplicability: All models 58P and 58PA with S/Nos TJ-3 to TJ-435 and TJ-437 to TJ-443.\n\nRequirement: 1. Fabricate and install in full view of the pilot a temporary placard using letters of minimum 3mm in height which states:\n\n“DO NOT OCCUPY SEATS 5 OR 6 DURING TAKEOFF OR LANDING”\n\n2. Modify in accordance with Beechcraft SB No. 2022.\n\nNote: FAA AD 85-11-04 refers.\n\nCompliance: 1. Within 25 hours’ time in service after 1 July 1985.\n\n2. Within 100 hours’ time in service after 1 July 1985 or at the next scheduled inspection for Maintenance Release issue after 1 July 1985, whichever is the later.\n\nBackground: The initial issue was to improve impact capability of the 5th and 6th seat attachment for passenger protection. Amdt 1 requires placarding to prohibit the use of seats 5 and 6 during take-off and landing until modified.","sortOrder":0}],"analysis":{"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is an amendment to an existing Airworthiness Directive. The original directive required modifications to improve crash protection for rear seats. Amendment 1 adds an interim safety measure (the placard) while maintaining the same ultimate goal. The scope remains tightly focused on the specific seat bracket safety issue for the identified aircraft models."},"complexity_factors":["Very short document (under 300 words)","Only 2 substantive requirements with clear deadlines","Single applicability criterion (specific aircraft models and serial numbers)","No defined terms section","No cross-references to other legislation (only references to manufacturer service bulletin and FAA equivalent directive)","Simple conditional logic: 'whichever is the later' for one compliance deadline"],"plain_english_summary":"This is an **Airworthiness Directive** — essentially a mandatory safety fix ordered by Australia's aviation regulator (CASA) for specific aircraft.\n\n**What it does:**\n- Targets **Beechcraft Baron aeroplanes** (models 58P and 58PA with specific serial numbers)\n- Addresses a safety problem with the **attachment brackets for seats 5 and 6** (the rearmost passenger seats)\n- Requires two actions:\n  1. **Immediately** (within 25 flight hours): Install a visible warning placard telling pilots and passengers not to use seats 5 and 6 during takeoff or landing\n  2. **Soon after** (within 100 flight hours or at next maintenance check): Permanently modify the seat brackets following the manufacturer's official instructions (Beechcraft Service Bulletin No. 2022)\n\n**Why it matters:**\nThe original seats weren't strong enough to protect passengers in a crash. This directive creates a temporary safety measure (the placard) while ensuring a permanent mechanical fix happens relatively quickly. It prevents people from sitting in unsafe seats during the riskiest phases of flight (takeoff and landing) until the hardware is upgraded.\n\n**Who it affects:**\n- Owners and operators of affected Beechcraft Baron aircraft\n- Maintenance engineers who must perform the modifications\n- Passengers who might otherwise sit in those back seats"},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":true,"description":"Amdt 1 adds an immediate operational restriction — placarding and prohibition of seats 5 and 6 during takeoff and landing until the SB modification is completed — whereas the initial issue addressed improving the impact capability of the seat attachments (Background; Requirement 1; Requirement 2)."},"complexity_factors":["Narrow applicability limited to specific models and serial numbers (Applicability).","Two distinct compliance actions: immediate placard requirement and later structural modification (Requirement 1; Requirement 2).","Fixed compliance timeframes with a conditional later‑deadline ('whichever is the later') creating scheduling considerations for operators (Compliance 1; Compliance 2).","Dependence on an external technical document (Beechcraft SB No. 2022) for the modification scope and method (Requirement 2).","Operational impact on seating capacity and passenger management until modification is completed (Requirement 1; Background).","Minimal regulatory discretion in the AD text but practical enforcement and interpretation hinge on maintenance release scheduling and SB implementation."],"plain_english_summary":"This airworthiness directive requires operators of specified Beechcraft 58P and 58PA aeroplanes (listed serial numbers) to install a pilot‑visible placard forbidding occupancy of seats 5 and 6 during takeoff and landing, and to carry out a structural modification per Beechcraft Service Bulletin No. 2022. The placard must be fitted within 25 hours’ time‑in‑service and the modification within 100 hours or at the next scheduled inspection; owners/operators bear the cost and temporarily lose those seats until modification is complete."}},"importantCases":[],"_links":{"self":"/api/acts/ad-beech-55-67-amdt-1-fuselage-seat-attachment-brackets","history":"/api/acts/ad-beech-55-67-amdt-1-fuselage-seat-attachment-brackets/history","analysis":"/api/acts/ad-beech-55-67-amdt-1-fuselage-seat-attachment-brackets/analysis","conflicts":"/api/acts/ad-beech-55-67-amdt-1-fuselage-seat-attachment-brackets/conflicts","importantCases":"/api/acts/ad-beech-55-67-amdt-1-fuselage-seat-attachment-brackets/important-cases","documents":"/api/acts/ad-beech-55-67-amdt-1-fuselage-seat-attachment-brackets/documents"}}