{"id":"F2006L01105","name":"AD/CONVAIR/2 - Elevator and Rudder Hinge Pins and Bushings","slug":"ad-convair-2-elevator-and-rudder-hinge-pins-and-bushings","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":58459,"registerId":"commonwealth-F2006L01105-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Kelowna Flightcraft (General Dynamics/Co","sectionType":"division","heading":"Kelowna Flightcraft (General Dynamics/Convair) Series Aeroplanes","content":"### Kelowna Flightcraft (General Dynamics/Convair) Series Aeroplanes\n\n| AD/CONVAIR/2 | Elevator and Rudder Hinge Pins and Bushings | 5/2006 |\n| ------------ | ------------------------------------------- | ------ |\n\n| Applicability: | All model 340, 440, and all such model aircraft converted to turbopropeller power. |\n| -------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n| Requirement: | 1. Remove the elevators and rudder in accordance with Parts 2.A.1. and 2.B.1., respectively, of the Accomplishment Instructions of General Dynamics, Convair Division, Alert Service Bulletin 640 (340D) A55-7. Perform a detailed visual inspection of the elevator and rudder hinge pins and bushings to detect wear in accordance with the procedures described in Part 2.B. of the Accomplishment Instructions of Service Bulletin 640 (340D) 55-5; and perform a detailed visual inspection of the elevator and rudder bearing plate assemblies to detect cracks and of the elevator and rudder bearings to detect chattering, looseness, dryness, or binding in accordance with Parts 2.A. and 2.B. of the Accomplishment Instructions of Alert Service Bulletin 640 (340D) A55-7.If any cracked bearing plate assembly, worn pin or bushing, or defective bearing is found during any inspection, before further flight, replace with serviceable part(s) in accordance with the applicable Service Bulletin.2. Perform a hardness test to determine the equivalent strength of the elevator and rudder hinge pins and bushings in accordance with normal maintenance procedures. If the equivalent strength of any pin or bushing does not meet the type design strength specified below in sub paragraphs 2.a or 2.b. of this requirement, as applicable, replace the discrepant pin or bushing with serviceable parts in accordance with Part 2.A. or 2.B. of the Accomplishment Instructions of Alert Service Bulletin 640 (340D) A55-7.Elevator and rudder hinge pins and bushings received directly from Convair that bear the Convair mark are excluded from this requirement. The Convair mark is an etched mark, which appears as follows, and is located on the top of the hinge pin and on the top of the bushing: CVSD(a) For aircraft having pin assembly 240-2010908-1, the pins and bushings must meet type design strengths specified as follows:Part Part number Type Design StrengthPin GD/Convair 240-2010904 170-195 ksiBushing GD/Convair 240-2010903-7 120-145 ksi |\n| | (b) For aircraft having pin assembly 240-2010908-3, the pins and bushings must meet type design strengths specified as follows:Pin GD/Convair 240-2010904 170-195 ksiBushing GD/Convair 340-2015903 125-145 ksiBushing Allison 9015192 125-145 ksi3. Reinstall the elevator and rudder, and ensure that proper mating of the pin and bushing tapered surfaces exists in accordance with Parts 2.A.5. and 2.B.5.of the Accomplishment Instructions of Alert Service Bulletin 640 (340D) A55-7.4. Repeat Requirements 1 and 3 in accordance with Item 55-2-9 of General Dynamics, Convair Division , “Supplemental Inspection Document, Model 340/440”, Report No. ZS-34-1000, Revision 1, dated April 15, 1991, including Addenda I, II, and III, all dated April 15, 1991.Note 1: Requirement 4 of this Directive restates a requirement for repetitive actions contained in FAA AD 92-06-06. Accomplishment of Requirements 1 and 3 of this Directive satisfies the corresponding requirements contained in AD 92-06-06.Note 2: FAA AD 93-24-06 Amdt 39-8755 refers. |\n| Compliance: | 1, 2, and 3. Unless the initial requirements are already accomplished, before30 June 2006.4. Within 2,000 hours or 2 years after previous compliance, and thereafter at intervals not to exceed 2,000 hours time in service or 2 years, whichever occurs first. |\n| | This Airworthiness Directive becomes effective on 11 May 2006. |\n| Background: | The FAA requires certain inspections to prevent the loss of an elevator or rudder, resulting from the installation of a suspected unapproved part. |\n\n![](image.001.png) \nDavid Villiers \nDelegate of the Civil Aviation Safety Authority\n\n29 March 2006","sortOrder":0},{"sectionNumber":"AD/CONVAIR/2","sectionType":"part","heading":"AD/CONVAIR/2","content":"## AD/CONVAIR/2","sortOrder":1},{"sectionNumber":"Elevator and Rudder Hinge Pins and Bushi","sectionType":"part","heading":"Elevator and Rudder Hinge Pins and Bushings","content":"## Elevator and Rudder Hinge Pins and Bushings","sortOrder":2},{"sectionNumber":"5/2006","sectionType":"part","heading":"5/2006","content":"## 5/2006","sortOrder":3}],"analysis":{"flash_summary":{"complexity_score":6,"scope_assessment":{"changed":true,"description":"This directive restates repetitive inspection obligations from FAA AD 92-06-06 (Note 1) but adds a new mandatory hardness test with explicit type-design strength thresholds and part-number specific requirements (Requirement 2). It therefore extends the technical obligation beyond simple visual inspection by imposing material-strength verification and defining exclusions for Convair-marked parts."},"complexity_factors":["Technical inspection and test requirements: detailed visual inspections plus hardness testing to specified ksi strength ranges for different part assemblies (Requirement 1 and 2).","Multiple part variants and strength specifications: distinct type-design strength bands for different pin and bushing part numbers and assemblies (Requirement 2(a) and 2(b)).","Reference to and dependence on external service documents: removal, inspection, replacement, and reinstallation must follow multiple Accomplishment Instructions and Service Bulletins (Alert Service Bulletin 640 (340D) A55-7, Service Bulletin 640 (340D) 55-5, Supplemental Inspection Document ZS-34-1000).","Exclusions and marking rules: parts bearing the Convair etched mark are excluded, creating a provenance/compliance check step (Requirement 2).","Operational continuity constraint: defective parts must be replaced 'before further flight', creating immediate operational and logistical costs for operators (Requirement 1).","Repetitive compliance scheduling: initial deadline plus recurring intervals (every 2,000 hours or 2 years) imposes ongoing maintenance planning and recordkeeping (Compliance).","Interplay with prior FAA ADs: restates and integrates requirements from FAA AD 92-06-06 and references FAA AD 93-24-06, requiring cross-referencing and compliance coordination (Note 1 and Note 2).","Precision of reinstallation requirement: demands verification of proper mating of tapered surfaces on reassembly, a technical fit/assembly check (Requirement 3)."],"plain_english_summary":"Requires operators of Convair model 340 and 440 aeroplanes (including turboprop conversions) to remove and inspect elevator and rudder hinge pins, bushings, bearing plates and bearings, perform hardness testing to specified strength ranges, and replace any cracked, worn or undersized parts before further flight. The measure, prompted by an FAA safety concern about suspected unapproved parts, excludes hinge components bearing the Convair mark and imposes initial and recurring compliance time limits."},"kimi_summary":{"content_quality":"ok","complexity_score":4,"scope_assessment":{"changed":false,"description":"This AD maintains its original narrow scope — addressing a specific safety defect in specific Convair aircraft models. It does not expand beyond the original purpose of ensuring airworthiness of elevator and rudder hinge components."},"complexity_factors":["Multiple cross-references to external documents (FAA ADs 92-06-06 and 93-24-06, General Dynamics Service Bulletins 640 (340D) A55-7 and 55-5, and Supplemental Inspection Document ZS-34-1000)","Technical specifications with precise part numbers and metallurgical strength ranges (ksi measurements)","Conditional logic with exclusions (Convair-marked parts are exempt from hardness testing)","Two different pin assembly configurations (240-2010908-1 vs 240-2010908-3) with different bushing specifications","Dual compliance timelines (one-time initial inspection plus recurring intervals)","Dense tabular formatting with merged cells that creates parsing challenges"],"plain_english_summary":"This AD orders owners/operators of Convair 340/440 series (including turboprop conversions) to inspect and, if needed, replace elevator and rudder hinge pins, bushings and bearing plates because of suspected unapproved/unsafe parts. It requires removal for inspection, hardness testing or verification of original Convair marking, replacement with approved parts if defective, and recurring checks every 2,000 flight hours or 2 years. The initial inspection deadline was 30 June 2006."},"flash_summary_failed":{"failed":true,"reason":"Unauthenticated. Configure AI_GATEWAY_API_KEY or use a provider module. Learn more: https://ai-sdk.dev/unauthenticated-ai-gateway","source":"analysis-cron"}},"importantCases":[],"_links":{"self":"/api/acts/ad-convair-2-elevator-and-rudder-hinge-pins-and-bushings","history":"/api/acts/ad-convair-2-elevator-and-rudder-hinge-pins-and-bushings/history","analysis":"/api/acts/ad-convair-2-elevator-and-rudder-hinge-pins-and-bushings/analysis","conflicts":"/api/acts/ad-convair-2-elevator-and-rudder-hinge-pins-and-bushings/conflicts","importantCases":"/api/acts/ad-convair-2-elevator-and-rudder-hinge-pins-and-bushings/important-cases","documents":"/api/acts/ad-convair-2-elevator-and-rudder-hinge-pins-and-bushings/documents"}}