{"id":"F2006B03639","name":"AD/BEECH 1900/22 - Main Landing Gear Actuator Rod Ends","slug":"ad-beech-1900-22-main-landing-gear-actuator-rod-ends","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":43229,"registerId":"commonwealth-F2006B03639-current","compilationNumber":null,"startDate":"2026-04-01","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/BEECH 1900/22 - Main Landing Gear Actuator Rod Ends","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 1900 Series Aeroplanes\n\nAD/BEECH 1900/22 Main Landing Gear Actuator Rod Ends 4/98\n\nApplicability: Model Serial Numbers\n\n1900 UA-2 and UA-3\n\n1900C UB-1 through UB-74, and UC-1 through UC-174 1900D UE-1 through UE-249 and UE-252\n\nRequirement: 1. Lubricate the main landing gear actuator rod ends in accordance with Raytheon Safety Communique 1900-28.\n\nNote: Installation of part number (P/N) M81935/1-8K (or FAA \\- approved equivalent part number) main landing gear actuator rod ends constitutes terminating action to the lubricating requirements of Requirement 1 of this Directive.\n\n2. Install Teflon-lined main landing gear actuator rod ends, P/N M81935/1-8K (or FAA \\- approved equivalent part number), in accordance with the Accomplishment Instructions section of Raytheon Mandatory Service Bulletin 2730.\n\nNote 1: Installing these Teflon-lined rod ends re-identifies the main landing gear actuator as P/N 114-380041-13.\n\nNote 2: FAA AD 97-26-15 Amdt 39-10258 refers.\n\nCompliance: 1. Upon accumulating 1,200 hours time in service on each P/N 114-380041-11 main landing gear actuator, or within 100 hours time in service after 26 March 1998, whichever occurs later.\n\n2. Unless already accomplished, within 600 hours time in service after 26 March 1998.\n\nThis airworthiness directive becomes effective on 26 March 1998.\n\nBackground: The FAA received reports of in-flight separations of the rod end that attaches the actuator to the arm of the main landing gear drag brace assembly. The separations were caused by excessive friction in the rod end bearing, and could result in the inability to lower the main landing gear or result in landing gear collapse during landing.","sortOrder":0}],"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":"Scope remains focused on preventing rod‑end separations for the listed main landing gear actuators and prescribes either lubrication or replacement as remedies (Applicability; Requirement 1–2; Background). The addition of a terminating action (installing P/N M81935/1-8K) narrows recurring burden for those who install the part but does not expand the set of affected aircraft or the fundamental safety objective (Note 1; Compliance)."},"complexity_factors":["Narrow applicability to particular Beechcraft 1900 serial numbers (Applicability)","Two clear compliance paths: recurring lubrication or one‑time part replacement (Requirement 1 & 2)","Deadlines expressed in flight hours and a calendar effective date, requiring operator tracking (Compliance)","Dependence on manufacturer service documents and an FAA AD for technical steps and equivalence (Requirement notes; Note 2)","Replacement changes part identification of the actuator (re‑identification to P/N 114-380041-13) requiring parts/records updates (Note 1)","Operational impacts limited to maintenance time, parts availability and associated costs (implied by Requirement/Compliance)"],"plain_english_summary":"Requires lubrication of the main landing gear actuator rod ends on specified Beechcraft 1900 serial numbers, or alternatively installation of Teflon-lined rod ends (P/N M81935/1-8K) as a terminating action. Operators must meet set flight‑hour deadlines for lubrication or part replacement.\n\nThe directive responds to reports of rod‑end separations caused by excessive bearing friction that can stop gear extension or cause collapse; operators bear maintenance and parts costs and must track compliance (Requirement 1–2; Compliance; Background)."},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a standard airworthiness directive (AD) addressing a specific mechanical defect in a defined aircraft fleet. The scope remains tightly focused on the landing gear actuator rod end issue as originally identified by the FAA. No scope creep is evident."},"complexity_factors":["Single-issue directive with only two requirements","Minimal defined terms (only standard aviation abbreviations like P/N for part number)","No nested exceptions or conditional logic beyond straightforward compliance deadlines","Clear applicability table with specific serial number ranges","Single cross-reference to FAA AD 97-26-15 for background context only","Total length: approximately 250 words"],"plain_english_summary":"This safety order requires owners/operators of certain Beechcraft 1900, 1900C and 1900D airplanes (specific serial-numbered aircraft) to either lubricate main-gear actuator rod ends regularly or permanently replace them with Teflon-lined rod ends. It fixes a seizure-prone joint that can prevent gear extension or cause collapse on landing, preventing potentially catastrophic failures."}},"importantCases":[],"_links":{"self":"/api/acts/ad-beech-1900-22-main-landing-gear-actuator-rod-ends","history":"/api/acts/ad-beech-1900-22-main-landing-gear-actuator-rod-ends/history","analysis":"/api/acts/ad-beech-1900-22-main-landing-gear-actuator-rod-ends/analysis","conflicts":"/api/acts/ad-beech-1900-22-main-landing-gear-actuator-rod-ends/conflicts","importantCases":"/api/acts/ad-beech-1900-22-main-landing-gear-actuator-rod-ends/important-cases","documents":"/api/acts/ad-beech-1900-22-main-landing-gear-actuator-rod-ends/documents"}}