{"id":"F2008L03450","name":"AD/CASA/29 - Pitot Static Tubes","slug":"ad-casa-29-pitot-static-tubes","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":120504,"registerId":"commonwealth-F2008L03450-current","compilationNumber":null,"startDate":"2026-04-03","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Casa 212 Series Aeroplanes","sectionType":"division","heading":"Casa 212 Series Aeroplanes","content":"### Casa 212 Series Aeroplanes\n\n| AD/CASA/29 | Pitot Static Tubes | 11/2008 DM |\n| ---------- | ------------------ | ---------- |\n\n| Applicability: | Model C-212-CB, C-212-CC, C-212-CD, C-212-CE, C-212-CF, C-212-DE andC-212-VA aircraft, all serial numbers, if part number (P/N) 212-61105.1 or212-61105.2 pitot tubes are installed.                                                                                                                                                                                                 |\n| -------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |\n|                | Note 1: EADS-CASA Service Bulletin SB 212-34-11 Revision 1 dated 27 February 2008 only refers to Models C-212-CB, C-212-CC, C-212-CD andC-212-CE aircraft and serial numbers. This Directive also applies to ModelsC-212-CF, C-212-DE and C-212-VA aircraft, even though there are no civil-registered Models C-212-CF, C-212-DE and C-212-VA aircraft known to be in service today. |\n| Requirement:   | 1. Perform a detailed inspection of the affected pitot/static tubes for radial cracking around the top lip of the dynamic port in accordance with the instructions of EADS-CASA C-212 Maintenance Manual, Chapter 5, Revision 5, June 2002, common to all models.                                                                                                                    |\n|                | 2. If cracks are found during any Requirement 1 inspection, replace the tube with a new P/N 212-A0150-0001 or 212-A0150-0002 pitot tube in accordance with the instructions of EADS-CASA SB 212-34-11 Revision 1.                                                                                                                                                                    |\n|                | The use of later revisions of the C-212 Maintenance Manual or SB 212-34-11 Revision 1 approved by the European Aviation safety Agency (EASA) is acceptable for compliance with the requirements of this Directive.                                                                                                                                                                   |\n|                | Note 2: EASA AD 2008-0155 refers.                                                                                                                                                                                                                                                                                                                                                    |\n| Compliance:    | For Requirement 1 - Within one calendar month or 300 hours time in service (TIS), whichever occurs first after the effective date of this Directive, and thereafter at intervals not to exceed 300 hours TIS.                                                                                                                                                                        |\n|                | For Requirement 2 - Before the next flight after any inspection accomplished in accordance with Requirement 1.                                                                                                                                                                                                                                                                       |\n|                | This Airworthiness Directive becomes effective on 15 September 2008.                                                                                                                                                                                                                                                                                                                 |\n\n| Background: | Incidents have been reported on Britten-Norman BN-2 aircraft, where cracks were found in the inner shell of the pitot/static pressure heads. The investigation concluded that these pitot tubes, supplied by Thales Optronics, could be operated outside their voltage specification. On 15 December 2005, CAA United Kingdom issued ADG-2005-0034 (EASA approval number 2005-6447), later superseded by EASA AD 2006-0143 (AD/BN-2/84 Amdt 2), to require inspections and leak tests on Britten-Norman aircraft. Subsequently, it has been discovered that the same tubes are supplied to EADS-CASA for installation on C-212 aircraft, one for the pilot side and one for the co-pilot side. |\n| ----------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n|             | Although EADS-CASA has not received any report of cracked pitot tubes fromC-212 operators there is a potential for this to occur which could result in incorrect readings on the pressure instrumentation e.g. altimeters, vertical speed indicators (rate of climb) and airspeed indicators, potentially leading to navigational errors.For this reason, this Directive requires the inspection of the affected pitot tubes and, if cracks are found, replacement of those tubes with the new P/N 212-A0150-0001 and 212-A0150-0002 pitot tubes.                                                                                                                                              |\n\n![](image.001.png)  \nCharles Lenarcic  \nDelegate of the Civil Aviation Safety Authority\n\n8 September 2008","sortOrder":0},{"sectionNumber":"AD/CASA/29","sectionType":"part","heading":"AD/CASA/29","content":"## AD/CASA/29","sortOrder":1},{"sectionNumber":"Pitot Static Tubes","sectionType":"part","heading":"Pitot Static Tubes","content":"## Pitot Static Tubes","sortOrder":2},{"sectionNumber":"11/2008 DM","sectionType":"part","heading":"11/2008 DM","content":"## 11/2008 DM","sortOrder":3}],"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"},"kimi_summary":{"content_quality":"ok","complexity_score":3,"scope_assessment":{"changed":false,"description":"The directive maintains its original narrow scope: addressing a specific safety defect in specific pitot tubes on specific aircraft models. The inclusion of aircraft models with no current civil registration (CF, DE, VA variants) is a precautionary expansion within the same safety purpose, not a fundamental broadening of scope."},"complexity_factors":["Single, clearly defined applicability section with specific aircraft models and part numbers","Two straightforward requirements: inspect, then replace if cracked","Simple compliance timeline: one month/300 hours initially, then every 300 hours","Minimal cross-referencing: only references one EASA service bulletin and one EASA AD for context","Short document (approximately 400 words) with clear structure","Only one conditional path (if cracks found → replace)","No nested exceptions or complex defined terms"],"plain_english_summary":"This AD requires operators of specified CASA 212 series aircraft to inspect pitot-static (pitot) tubes with certain part numbers for radial cracking around the top lip, and to replace any cracked units with improved parts before next flight.  \n\nInspections are mandated soon and at regular flight-hour intervals to prevent false airspeed, altitude or climb-rate indications that could compromise safety."},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":true,"description":"The AD expands the scope beyond the EADS-CASA Service Bulletin's explicit model list by applying to additional C-212 variants (C-212-CF, C-212-DE and C-212-VA) and to all serial numbers that have the specified pitot tube P/Ns (Note 1). It therefore broadens applicability relative to the original SB while keeping the technical inspection/replacement requirements (Applicability; Note 1; Requirement 1–2)."},"complexity_factors":["Part-number-specific applicability narrows the population to aircraft with P/N 212-61105.1 or 212-61105.2 (Applicability).","Simple inspection task required (detailed inspection for radial cracking) but demands technical competence and access to maintenance manual instructions (Requirement 1).","Hard deadline and recurring interval: initial inspection within one calendar month or 300 hours TIS and repeat every 300 hours (Compliance) — operational scheduling impact.","Immediate operational constraint: any cracked tube must be replaced before the next flight (Requirement 2) — potential for AOG/downtime and spare-part need.","Replacement limited to two specific P/Ns (212-A0150-0001/0002) — supply and procurement considerations for operators (Requirement 2).","Regulatory cross-references: accepts later EASA-approved revisions of the maintenance manual and service bulletin — some regulatory discretion and document-version tracking required.","Applicability extension in Note 1 to additional C-212 variants increases scope administrative tracking even if no civil examples currently registered.","Background ties to external events (cracking on other aircraft types) creating precautionary compliance despite no reported C-212 incidents — risk-based justification affects perceived urgency."],"plain_english_summary":"Mechanically, the directive requires operators of CASA C-212 aeroplanes fitted with pitot tubes P/N 212-61105.1 or 212-61105.2 to inspect the pitot/static tubes for radial cracking at the dynamic port and to replace any cracked tube with the specified P/N 212-A0150-0001 or 212-A0150-0002 parts (Requirements 1–2; Compliance). The source frames this as a response to similar tube cracking that can give incorrect altimeter/airspeed/vertical-speed readings. Operators pay for inspections and replacements, must inspect within one calendar month or 300 hours TIS and then every 300 hours, and must replace cracked tubes before the next flight."}},"importantCases":[],"_links":{"self":"/api/acts/ad-casa-29-pitot-static-tubes","history":"/api/acts/ad-casa-29-pitot-static-tubes/history","analysis":"/api/acts/ad-casa-29-pitot-static-tubes/analysis","conflicts":"/api/acts/ad-casa-29-pitot-static-tubes/conflicts","importantCases":"/api/acts/ad-casa-29-pitot-static-tubes/important-cases","documents":"/api/acts/ad-casa-29-pitot-static-tubes/documents"}}