{"id":"F2009L01074","name":"AD/INST/56 Amdt 2 - Avidyne Corporation Primary Flight Displays","slug":"ad-inst-56-amdt-2-avidyne-corporation-primary-flight-displays","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":121811,"registerId":"commonwealth-F2009L01074-current","compilationNumber":null,"startDate":"2026-04-03","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Instruments and Automatic Pilots","sectionType":"division","heading":"Instruments and Automatic Pilots","content":"### Instruments and Automatic Pilots\n\n| AD/INST/56 Amdt 2 | Avidyne Corporation Primary Flight Displays | 5/2009 DM |\n| ----------------- | ------------------------------------------- | --------- |\n\n| Applicability: | Avidyne Corporation (Avidyne) Primary Flight Displays (PFD) with Part Numbers (P/N) 700-00006-000, 700-00006-001, 700-00006-002, 700-00006-003 and700-00006-100 with any serial number listed in Avidyne Service Bulletin (SB)601-00006-096, Revision 1, dated 14 July 2008. |\n| -------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n| | Note 1: The serial numbers listed in SB 601-00006-096, Revision 1 are identical to those listed in AD/INST/56 and AD/INST/56 Amdt 1 with the exception that PFDs subsequently serviced under an alternate method of compliance (AMOC) approved by the United States Federal Aviation Administration (FAA) have been omitted. |\n| | Note 2: These PFDs are known to be installed on, but not limited to, the following aeroplane models: |\n| | Adam Aircraft Model A500;Cessna Aircraft Company Model 441 (STEC Alliant FAA Supplemental Type Certificate (STC) SA09547AC-D incorporated);Cessna Aircraft Company Models LC42-550FG and LC41-550FG (Columbia Aircraft Manufacturing and The Lancair Company previously held the type certificate for these aeroplanes);Cirrus Design Corporation Models SR20 and SR22;Diamond Aircraft Industries GmbH Model DA 40;Hawker Beechcraft Corporation Model E90 (STEC Alliant FAA STC SA09545AC-D incorporated);Hawker Beechcraft Corporation Model 200 series (STEC Alliant FAA STC SA09543AC-D incorporated); andPiper Aircraft, Inc. Models PA-28-161, PA-28-181, PA-28R-201, PA-32R-301 (HP), PA-32R-301T, PA-32-301FT, PA-32-301XTC, PA-34-220T, PA-44-180, PA-46-350P, PA-46R-350T and PA-46-500TP. |\n\n| Requirement: | 1. If not previously accomplished in accordance with either the original issue or Amdt 1 of this Directive, carry out a logbook check of aeroplane maintenance records to determine if any PFD (P/Ns 700-00006-000, 700-00006-001,700-00006-002, 700-00006-003 or 700-00006-100) with any serial number listed in SB 601-00006-096 Revision 1 is installed. If, as a result of this check, it can be positively identified that the PFD installed does not have a serial number affected by this Directive, then no further action, other than the Requirement 4 installation restriction, is required. |\n| ------------ | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n| | Note 3: The Requirement 1 determination may be accomplished by the registered operator/owner of the aeroplane, provided that he/she holds at least a private pilot’s licence and makes an entry showing compliance with the relevant requirement of this Directive in the aircraft records. |\n| | 2. If, as a result of the Requirement 1 check, any PFD with an affected serial number is found to be installed or the serial number of the PFD cannot be positively identified, visually inspect any PFD for any affected serial number listed in SB 601-00006-096, Revision 1. If, as a result of this check, it can be positively identified that the installed PFD does not have a serial number affected by this Directive, then no further action, other than the Requirement 4 installation restriction, is required. |\n| | 3. If, as a result of the Requirement 2 visual inspection, a installed PDF is found to have a serial number affected by this Directive, carry out the following: |\n| | a. Incorporate the operational limitations below by accomplishing whichever of the following applies: |\n| | (i) For aeroplanes with an aircraft flight manual (AFM), pilots operating handbook (POH) or aircraft flight manual supplement (AFMS), incorporate the language in the Appendix to this Directive into the Limitations section. |\n| | Note 4: This may be accomplished by inserting a copy of the Appendix into the AFM/POH/AFMS. |\n| | (ii) For aeroplanes without an AFM, POH or AFMS: |\n| | (A) Incorporate the language in the Appendix of this Directive into the aeroplanes aircraft maintenance records; and |\n| | (B) Fabricate a placard using letters at least 3mm (0.125 inches) high with the following words and install the placard on the instrument panel within the pilot's clear view: |\n\n| | “AD/INST/56 Amdt 2 CONTAINS LIMITATIONS REGARDING AVIDYNE PRIMARY FLIGHT DISPLAYS (PFD) AND REQUIRED INCORPORATION OF THESE LIMITATIONS INTO THE AIRCRAFT RECORDS. YOU MUST FOLLOW THESE LIMITATIONS.” |\n| --- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n| | Note 5: The insertion of limitations into AFM, POH, AFMS or maintenance records and the fabrication of the placard in accordance with Requirement 3.a. may be accomplished by the registered operator/owner of the aeroplane, provided that he/she holds at least a private pilot’s licence and makes an entry showing compliance with the relevant requirements of this Directive in the aircraft records. |\n| | b. Inspect for a label marked “Deviation 08-19A” on the exterior of the PFD near the TSO label or a “MOD 52” marking in accordance with Section 3.2 of SB 601-00006-096, Revision 1. |\n| | (i) If the label marked “Deviation 08-19A”or “MOD 52” marking is present, then the PFD has received the factory modification. Remove the Requirement 3.a. limitations (Requirement 2 of AD/INST/56 original issue or Amdt 1). When this is accomplished no further action, other than the Requirement 4 installation restriction, is required. |\n| | (ii) If the label or marking is not present, carry out the PFD air data system performance verification test in Section 3.3 SB 601-00006-096, Revision 1. |\n| | c. If the PFD passes the Requirement 3.b.(ii) test, remove the Requirement 3.a. limitations (Requirement 2 of AD/INST/56 original issue or Amdt 1). When this is accomplished no further action, other than the Requirement 4 installation restriction, is required. |\n| | d. If the PFD does not pass the Requirement 3.b.(ii) test, accomplish the following: |\n| | (i) Remove the PFD, install a PFD that has passed the air data system performance verification test, has been factory modified (PFD bears a label marked “Deviation 08-19A” on the exterior of the PFD near the TSO label or a “MOD 52” marking), or is not one of the affected serial number PFDs; |\n| | (ii) Remove the Requirement 3.a. limitations (Requirement 2 of AD/INST/56 original issue or Amdt 1). When this is accomplished no further action, other than the Requirement 4 installation restriction, is required. |\n\n| | 4. PFD (P/Ns 700-00006-000, 700-00006-001, 700-00006-002, 700-00006-003, or 700-00006-100) with any affected serial number listed in SB 601-00006-096, Revision 1 may not be installed on any aeroplane either as an initial fitment or as a replacement part, unless it has passed the air data system performance verification test or has been factory modified (PFD bears a label marked “Deviation 08-19A” on the exterior of the PFD near the TSO label or a “MOD 52” marking). |\n| ----------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n| | Note 6: Alternate methods of compliance (AMOC) approved by the FAA for AD 2008-06-28 R1 are acceptable for compliance with this Amendment. |\n| | Note 7: Later revisions of SB 601-00006-096, approved by the FAA as an (AMOC) to FAA AD 2009-05-05, are considered acceptable for compliance with the equivalent Requirements of this Amendment. |\n| | Note 8: FAA AD 2009-05-05 Amdt 39-15829 refers. |\n| Compliance: | For Requirement 1 and 2 - Within five days after the effective date of this Amendment. |\n| | For Requirement 3.a. - Within five days after the effective date of this Amendment. |\n| | For Requirement 3.b., 3.c. and 3.d. - Within 15 days after the effective date of this Amendment. |\n| | For Requirement 4 - After the effective date of this Amendment. |\n| | This Amendment becomes effective on 3 April 2009. |\n| Background: | The initial issue of this Directive required a check of the maintenance records and inspection of the PFD (if necessary) to determine if an affected serial number PFD is installed. If an affected serial number PFD was installed, the Directive required the incorporation of information that limits operation when certain conditions for the PFD or backup instruments exist. The Directive resulted from the FAA receiving several field reports of PFDs displaying incorrect altitude and airspeed information. |\n| | The Directive was issued to prevent certain conditions from existing when PFDs display incorrect attitude, altitude, and airspeed information. This could result in airspeed/altitude mismanagement or spatial disorientation of the pilot with consequent loss of aeroplane control, inadequate traffic separation or controlled flight into terrain. |\n| | Amendment 1 corrected a typographical error in the FAA AD number. |\n| | The Amendment introduces a terminating action to the operating limitations introduced by the earlier versions of this Directive. |\n\n| | The original issue of this Directive became effective on 10 April 2008. |\n| --- | ----------------------------------------------------------------------- |\n\n![](image.001.png)\n\nJames Coyne \nDelegate of the Civil Aviation Safety Authority\n\n10 March 2009\n\n| | Appendix - Limitations Regarding Avidyne Primary Flight Displays (PFDs) |\n| --- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |\n| | Before conducting flight operations, pilots must review and be familiar with the Crosscheck Monitor section of the Avidyne Primary Flight Display Pilot's Guide and all limitations contained in the aircraft operating handbook.As a normal practice, all pilots should be vigilant in conducting proper preflight and in-flight checks of instrument accuracy, including:Preflight check of the accuracy of both the primary and backup altimeter against known airfield elevation and against each other.Verification of airspeed indications consistent with prevailing conditions at startup, during taxi, and prior to takeoff.\"Airspeed alive'' check and reasonable indications during takeoff roll.Maintenance of current altimeter setting in both primary and backup altimeters.Cross-check of primary and backup altimeters at each change of altimeter setting and prior to entering instrument meteorological conditions (IMC).Cross-check of primary and backup altimeters and validation against other available data, such as glideslope intercept altitude, prior to conducting any instrument approach.Periodic cross-checks of primary and backup airspeed indicators, preferably in combination with altimeter cross-checks.For flight operations under instrument flight rules (IFR) or in conditions in which visual reference to the horizon cannot be reliably maintained (that is IMC, night operations, flight operations over water, in haze or smoke) and the pilot has reasons to suspect that any source (PFD or back-up instruments) of attitude, airspeed, or altitude is not functioning properly, flight under IFR or in these conditions must not be initiated (when condition is determined on the ground) and further flight under IFR or in these conditions is prohibited until equipment is serviced and functioning properly.Operation of aircraft not equipped with operating backup (or standby) attitude, altimeter, and airspeed indicators that are located where they are readily visible to the pilot is prohibited.Pilots must frequently scan and crosscheck flight instruments to make sure the information depicted on the PFD correlates and agrees with the information depicted on the backup instruments. |","sortOrder":0},{"sectionNumber":"AD/INST/56 Amdt 2","sectionType":"part","heading":"AD/INST/56 Amdt 2","content":"## AD/INST/56 Amdt 2","sortOrder":1},{"sectionNumber":"Avidyne Corporation Primary Flight Displ","sectionType":"part","heading":"Avidyne Corporation Primary Flight Displays","content":"## Avidyne Corporation Primary Flight Displays","sortOrder":2},{"sectionNumber":"5/2009 DM","sectionType":"part","heading":"5/2009 DM","content":"## 5/2009 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":6,"scope_assessment":{"changed":true,"description":"The original directive (April 2008) imposed permanent operating limitations on affected PFDs. Amendment 2 (March 2009) significantly expanded the scope by introducing 'terminating actions' — specific tests and factory modifications that allow operators to remove the limitations entirely. It also added Requirement 4, an ongoing installation prohibition that applies prospectively to all future fitments, not just existing installations. The directive evolved from a simple 'identify and restrict' order to a comprehensive 'identify, test, modify, replace, and prohibit' regime with multiple compliance pathways."},"complexity_factors":["Multiple nested conditional pathways (Requirements 1→2→3 with branching sub-requirements 3.a through 3.d)","Cross-references to external documents: FAA AD 2008-06-28 R1, FAA AD 2009-05-05, and Avidyne Service Bulletin 601-00006-096 Revision 1","Specific part numbers (5 variants) and serial number lists contained in external documents not reproduced in full","Dual compliance pathways (factory modification label vs. performance verification test)","Multiple document types referenced (AFM, POH, AFMS, maintenance records, TSO labels)","Time-based compliance deadlines varying by requirement (5 days vs 15 days vs ongoing)","Permitted alternative compliance methods (AMOCs) from US FAA accepted as equivalent","Appendix with extensive operational limitations text that must be physically incorporated into aircraft documentation"],"plain_english_summary":"This CASA Airworthiness Directive orders owners/operators of aircraft fitted with specific Avidyne PFDs (part numbers beginning 700‑00006 and listed serials) to verify installation and, if affected, apply cockpit placards and operating limitations, check for the factory modification, or perform a performance test. Units that fail must be replaced and may not be reinstalled until fixed. It targets light‑aircraft fleets (Cessna, Cirrus, Piper, Diamond, etc.) to prevent dangerous altitude/airspeed misdisplays."},"flash_summary":{"complexity_score":6,"scope_assessment":{"changed":true,"description":"Amendment 2 adds a terminating action to earlier operating limitations: affected PFDs may have the limitations removed once they pass the air‑data performance test or are factory‑modified/marked. It therefore narrows the permanent scope of prior restrictions by providing an approved verification/modification route and recognises FAA‑approved AMOCs and later SB revisions as acceptable compliance paths."},"complexity_factors":["Multiple affected part numbers and specific serial numbers tied to an external Service Bulletin (SB 601-00006-096 Rev 1), requiring cross-referencing.","Layered compliance path: record check, visual inspection, placard/AFM insertion, label check, air‑data performance test, factory modification or replacement.","Different procedural options depending on aircraft documentation (AFM/POH/AFMS vs none) and who may perform the record/placard tasks (registered operator with private pilot licence allowed).","Short, staged compliance deadlines (5 days for initial checks/limitations, 15 days for testing/modification steps).","Prohibition on installing affected PFDs unless they pass the test or bear factory modification markings, creating ongoing parts‑control obligations.","Reliance on technical air‑data system performance verification that may require specialised maintenance capability.","Cross‑jurisdictional acceptance of FAA Alternate Methods of Compliance and later SB revisions, adding external regulatory interdependencies."],"plain_english_summary":"Requires aircraft owners/operators to check records and inspect specified Avidyne Primary Flight Displays (listed part and serial numbers). If an affected unit is present, pilots must operate under prescribed limitations (AFM/POH entry or a cockpit placard and maintenance-record note) until the display passes an air‑data performance test, is factory‑modified, or is replaced. This imposes inspection, testing, modification or replacement costs, short compliance deadlines, and a ban on installing affected units unless verified or modified to prevent incorrect flight data."}},"importantCases":[],"_links":{"self":"/api/acts/ad-inst-56-amdt-2-avidyne-corporation-primary-flight-displays","history":"/api/acts/ad-inst-56-amdt-2-avidyne-corporation-primary-flight-displays/history","analysis":"/api/acts/ad-inst-56-amdt-2-avidyne-corporation-primary-flight-displays/analysis","conflicts":"/api/acts/ad-inst-56-amdt-2-avidyne-corporation-primary-flight-displays/conflicts","importantCases":"/api/acts/ad-inst-56-amdt-2-avidyne-corporation-primary-flight-displays/important-cases","documents":"/api/acts/ad-inst-56-amdt-2-avidyne-corporation-primary-flight-displays/documents"}}