{"id":"F2006L03841","name":"AD/EMB-110/53 Amdt 2 - Nose Landing Gear Rotating Cylinder Assembly","slug":"ad-emb-110-53-amdt-2-nose-landing-gear-rotating-cylinder-assembly","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":137714,"registerId":"commonwealth-F2006L03841-current","compilationNumber":null,"startDate":"2026-04-03","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Embraer EMB-110 (Bandeirante) Series Aer","sectionType":"division","heading":"Embraer EMB-110 (Bandeirante) Series Aeroplanes","content":"### Embraer EMB-110 (Bandeirante) Series Aeroplanes\n\n| AD/EMB-110/53 Amdt 2 | Nose Landing GearRotating Cylinder Assembly | 13/2006 |\n| -------------------- | ------------------------------------------- | ------- |\n\n| Applicability: | All Model EMB-110 aircraft.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    |\n| -------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |\n| Requirement:   | 1. Inspect the nose landing gear rotating cylinder assembly, externally using dye-penetrant method and internally using a boroscope, in accordance with Embraer Service Bulletin (SB) No. 110-32-0088 Revision 03.a. If any cracks are evident during the inspection, replace the rotating cylinder assembly before further flight.b. If severe corrosion but no cracks are evident during the inspection, before further flight, perform a Requirement 2 detailed bench inspection of the rotating cylinder assembly.c. If light corrosion but no cracks are evident during the inspection, return the rotating cylinder assembly to service and repeat Requirement 1 inspections at the times specified in Compliance 1.c.2. If no corrosion or cracks are evident during the Requirement 1 inspection, perform a detailed bench inspection of the rotating cylinder assembly in accordance with SB No. 110-32-0088 Revision 03.a. If severe corrosion or cracks are evident during the inspection, replace the rotating cylinder assembly before further flight.b. If no corrosion or cracks are evident during the inspection, before further flight, apply a protection on the internal area of the rotating cylinder assembly in accordance with SB No. 110-32-0088 Revision 03.c. If light corrosion, but no cracks are evident during the inspection, before further flight, apply a protection on the internal area of the rotating cylinder assembly in accordance with SB No. 110-32-0088 Revision 03, and repeat the Requirement 1 inspections at the times specified in Compliance 2.c.; until the required replacement.Note: Brazil CTA AD 2004-04-01 R1 refers. |\n\n| Compliance: | 1. Within 150 flight hours or 120 calendar days after 28 July 2004, whichever occurs first.1.c. At intervals not to exceed 150 flight hours or 120 calendar days, whichever occurs first, until accumulating 600 flight hours or 12 calendar months after 28 July 2004, whichever occurs first; when a Requirement 2 detailed bench inspection is required.2. Within 600 flight hours or 12 calendar months after 28 July 2004, whichever occurs first.2.c. At intervals not to exceed 600 flight hours or 9 calendar months, whichever occurs first; until replacement of the rotating cylinder assembly, which must be accomplished before accumulating 3,000 flight hours or 36 months after 28 July 2004, whichever occurs first.The compliance times remain unchanged except for Requirement 3, which was deleted and incorporated into Compliance 2.c., by this issue of the Directive. |\n| ----------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n|             | This Amendment becomes effective on 21 December 2006.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         |\n| Background: | The manufacturer received in-service reports of corrosion on the nose landing gear rotating cylinder assembly. Such corrosion could lead to cracking and could result in failure of the nose landing gear.Amendment 1 introduced a requirement for a boroscope internal inspection of the nose landing gear rotating cylinder assembly.Amendment 2 is issued to clarify the requirements and to correct an error in Amendment 1.The original issue of this Airworthiness Directive became effective on 8 July 2004.                                                                                                                                                                                                                                                                                                                                                                           |\n\n![](image.001.png)  \nDavid Villiers  \nDelegate of the Civil Aviation Safety Authority\n\n9 November 2006","sortOrder":0},{"sectionNumber":"AD/EMB-110/53 Amdt 2","sectionType":"part","heading":"AD/EMB-110/53 Amdt 2","content":"## AD/EMB-110/53 Amdt 2","sortOrder":1},{"sectionNumber":"Nose Landing GearRotating Cylinder Assem","sectionType":"part","heading":"Nose Landing GearRotating Cylinder Assembly","content":"## Nose Landing Gear  \nRotating Cylinder Assembly","sortOrder":2},{"sectionNumber":"13/2006","sectionType":"part","heading":"13/2006","content":"## 13/2006","sortOrder":3}],"analysis":{"kimi_summary":{"content_quality":"ok","complexity_score":4,"scope_assessment":{"changed":false,"description":"This Amendment 2 remains tightly focused on the original safety issue (nose landing gear cylinder corrosion). The amendment merely clarifies requirements and corrects an error from Amendment 1 by consolidating Requirement 3 into Compliance 2.c. The scope has not expanded beyond the specific mechanical defect identified in the original July 2004 directive."},"complexity_factors":["Multiple conditional pathways (cracks vs. corrosion severity vs. clean inspection) creating a decision tree","Nested compliance timelines with 'whichever occurs first' logic (flight hours vs. calendar days/months)","Cross-reference to external technical document (Embraer Service Bulletin 110-32-0088 Revision 03) without reproducing its contents","Amendment history incorporated (Requirement 3 deleted and merged into Compliance 2.c.) creating version control complexity","Dual inspection methods required (external dye-penetrant + internal boroscope)","Cascading deadlines: initial inspection → interim inspections → final replacement deadline"],"plain_english_summary":"This CASA Airworthiness Directive requires owners/operators of Embraer EMB‑110 Bandeirante aircraft to inspect and ultimately replace the nose landing‑gear rotating cylinder assembly because corrosion can cause cracks and gear failure. It mandates dye‑penetrant and boroscope inspections, interim actions based on findings, and replacement within specified hours/time — compliance is compulsory to prevent landing or taxi accidents."},"flash_summary":{"complexity_score":6,"scope_assessment":{"changed":false,"description":"Amendment 2 clarifies and corrects the text of the earlier AD but does not expand applicability: it still applies to all Model EMB‑110 aircraft (Applicability; Background). Compliance timelines remain as previously set except that Requirement 3 was deleted and its obligations were moved into Compliance 2.c (Compliance note)."},"complexity_factors":["Conditional inspection outcomes trigger different actions (replace before flight; detailed bench inspection; apply internal protection and repeat inspections) (Requirement 1.a‑c; Requirement 2.a‑c).","Multiple overlapping time metrics to track (flight hours and calendar days/months) with different intervals for initial, recurrent and final replacement deadlines (Compliance 1, Compliance 1.c, Compliance 2, Compliance 2.c).","Cross‑reference to manufacturer service instructions: inspections and protective work must follow Embraer SB No. 110‑32‑0088 Revision 03 (Requirement 1; Requirement 2).","Requires specific inspection methods and equipment (external dye‑penetrant, internal boroscope, bench inspection) implying technical capability, tooling and trained personnel (Requirement 1; Requirement 2).","Final replacement mandatory before accumulating 3,000 flight hours or 36 months after 28 July 2004, creating an absolute service‑life endpoint and logistics for parts availability (Compliance 2.c).","Applicability to all Model EMB‑110 aircraft concentrates compliance costs on the entire operator population (Applicability).","Amendment history and correction: Amendment 2 clarifies requirements and corrects an error from Amendment 1, and deleted Requirement 3 was incorporated into Compliance 2.c, requiring attention to version control of obligations (Background; Compliance note).","External regulatory linkage: note refers to Brazil CTA AD 2004‑04‑01 R1, which may require coordination for operators following multiple authorities (Note in Requirement).","Administrative tracking burden to capture hours, calendar dates and repeat inspection scheduling across the fleet (Compliance 1, Compliance 1.c, Compliance 2.c)."],"plain_english_summary":"This Directive requires all EMB-110 operators to inspect the nose landing gear rotating cylinder assembly (external dye‑penetrant and internal boroscope) and, depending on corrosion or cracks found, to carry out bench inspections, apply internal protection, or replace the assembly before further flight. It sets specific short‑term and recurrent inspection intervals and a final replacement deadline. Operators pay for inspections, protection work, repairs and parts, and must schedule aircraft downtime to meet the timelines set by the Directive and the referenced Embraer Service Bulletin."},"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-emb-110-53-amdt-2-nose-landing-gear-rotating-cylinder-assembly","history":"/api/acts/ad-emb-110-53-amdt-2-nose-landing-gear-rotating-cylinder-assembly/history","analysis":"/api/acts/ad-emb-110-53-amdt-2-nose-landing-gear-rotating-cylinder-assembly/analysis","conflicts":"/api/acts/ad-emb-110-53-amdt-2-nose-landing-gear-rotating-cylinder-assembly/conflicts","importantCases":"/api/acts/ad-emb-110-53-amdt-2-nose-landing-gear-rotating-cylinder-assembly/important-cases","documents":"/api/acts/ad-emb-110-53-amdt-2-nose-landing-gear-rotating-cylinder-assembly/documents"}}