{"id":"F2006B08443","name":"AD/CESSNA 560/6 - Electric Pitch Trim System","slug":"ad-cessna-560-6-electric-pitch-trim-system","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":115938,"registerId":"commonwealth-F2006B08443-current","compilationNumber":null,"startDate":"2026-04-03","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"AIRWORTHINESS DIRECTIVE","sectionType":"part","heading":"AIRWORTHINESS DIRECTIVE","content":"# AIRWORTHINESS DIRECTIVE\n\n![](image.001.png)  \n\nFor the reasons set out in the background section, the CASA delegate whose signature appears below issues the following Airworthiness Directive (AD) under subregulation 39.1 (1) of CASR 1998. The AD requires that the action set out in the requirement section (being action that the delegate considers necessary to correct the unsafe condition) be taken in relation to the aircraft or aeronautical product mentioned in the applicability section: (a) in the circumstances mentioned in the requirement section; and (b) in accordance with the instructions set out in the requirement section; and (c) at the time mentioned in the compliance section.\n\n![](image.001.png)  \n\nCessna 560 (Citation V) Series Aeroplanes","sortOrder":0},{"sectionNumber":"AD/CESSNA 560/6 Electric Pitch Trim Syst","sectionType":"part","heading":"AD/CESSNA 560/6 Electric Pitch Trim System 1/2004","content":"# AD/CESSNA 560/6 Electric Pitch Trim System 1/2004\n\nDM\n\nApplicability: Model 560 aeroplanes, having serial numbers 0260 through 0396 inclusive, except those on which Cessna Service Bulletin 560-34-93, dated 16 March 2001, has been accomplished.\n\nRequirement: 1. Unless previously accomplished, disengage the PITCH TRIM circuit breaker on the left circuit breaker panel and the SERVO 1 circuit breaker on the right circuit breaker panel, and install tie straps on those circuit breakers, in accordance with paragraphs 1.A. and 1.B. of the Accomplishment Instructions of Cessna Alert Service Letter ASL560-27-10, dated 10 October 2003.\n\n    2. Remove the tie straps from PITCH TRIM and SERVO 1 circuit breakers and re- engage the circuit breakers.\n\n    3. Trim printed circuit board assembly having part number 6518351-3 or \\-5 may not be installed on any aeroplane as a replacement part.\n\nNote: FAA AD 2003-23-02 Amdt 39-13365 refers.\n\nCompliance: For Requirement 1 \\- Within 5 days or 10 hours time-in-service after the effective date of this Directive, whichever occurs first.\n\nFor Requirement 2 - Following the optional accomplishment of the inspection of the trim printed circuit board assembly to determine the part number of the assembly and all applicable follow-on actions, in accordance with paragraphs 2.A., 2.B. and 2.C. of the Accomplishment Instructions of ASL560-27-10.\n\nFor Requirement 3 \\- As of the effective date of this Directive.\n\nThis Airworthiness Directive becomes effective on 28 November 2003.","sortOrder":1}],"analysis":{"kimi_summary":{"content_quality":"ok","complexity_score":3,"scope_assessment":{"changed":false,"description":"This is a standard, targeted airworthiness directive addressing a specific unsafe condition in a specific aircraft type. The scope remains tightly focused on the electric pitch trim system defect as originally identified."},"complexity_factors":["Short, single-purpose directive with only 3 requirements","Limited applicability (specific model and serial number range)","Clear cross-reference to external technical documents (Cessna Service Bulletin and Alert Service Letter) rather than reproducing lengthy instructions inline","Simple conditional logic (unless previously accomplished)","Straightforward compliance timeline (5 days/10 hours, or 'as of effective date')","Only one defined exception (aircraft with specific service bulletin already installed)"],"plain_english_summary":"This AD orders owners/operators of Cessna 560 (serials 0260–0396) to mitigate a defect in the electric pitch trim PCBs that can cause uncommanded nose‑up or nose‑down movements. Within 5 days or 10 flight hours, two circuit breakers (PITCH TRIM and SERVO 1) must be pulled and tie‑wrapped as a temporary measure; inspections/repairs allow re‑engagement. Two specified PCB part numbers are banned from future installation."},"flash_summary":{"complexity_score":4,"scope_assessment":{"changed":false,"description":"Scope remains targeted to the stated set of Cessna 560 serial numbers, excluding those already modified by the cited service bulletin. The AD imposes temporary operational isolation of two circuit breakers, an inspection requirement, and a prohibitive restriction on specific replacement PCB part numbers; it does not broaden applicability beyond the aircraft and parts named."},"complexity_factors":["Narrow applicability limited to a specific serial‑number range with an explicit exclusion for aircraft already modified by Cessna Service Bulletin 560‑34‑93 (affects which operators are in scope)","Immediate short compliance window for the initial action (within 5 days or 10 hours TIS) increases operational and scheduling pressure","Physical modifications required (disengaging two circuit breakers and installing tie straps) impose hands‑on technician time and access to aircraft","Inspection to determine trim PCB part number and conditional follow‑on actions introduces branching compliance paths and recordkeeping","Absolute prohibition on installing specified PCB part numbers as replacements creates a long‑term parts restriction for maintenance organisations","Dependency on external technical instructions (Cessna Alert Service Letter ASL560‑27‑10) and cross‑reference to FAA AD creates document and interpretation dependencies","Safety‑critical system affected (pitch trim) means operators must manage operational risk while the Directive is complied with, including decisions on when to re‑engage breakers"],"plain_english_summary":"This Airworthiness Directive requires operators of specific Cessna 560 (Citation V) aeroplanes (serials 0260–0396, except those already modified by Cessna Service Bulletin 560‑34‑93) to disable the PITCH TRIM and SERVO 1 circuit breakers, fit tie straps, inspect the trim printed circuit board part number, and bans replacement with PCB P/N 6518351‑3 or ‑5. The Directive is intended to address an unsafe pitch‑trim condition; aircraft operators pay compliance costs and must act within the short times set out."},"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-cessna-560-6-electric-pitch-trim-system","history":"/api/acts/ad-cessna-560-6-electric-pitch-trim-system/history","analysis":"/api/acts/ad-cessna-560-6-electric-pitch-trim-system/analysis","conflicts":"/api/acts/ad-cessna-560-6-electric-pitch-trim-system/conflicts","importantCases":"/api/acts/ad-cessna-560-6-electric-pitch-trim-system/important-cases","documents":"/api/acts/ad-cessna-560-6-electric-pitch-trim-system/documents"}}