The purpose of this CAN is to notify helicopter operators and maintenance providers of a recent occurrence reported to the CAA of significant cracks found in the 4 Bladed Tail Rotor Hub of a MD500 helicopter.
The purpose of this CAN is to notify MD369 helicopters operators and maintenance providers of occurrences recently reported to CAA of finding duplex bearing distress in numerous MD369 Tail Rotor Gearboxes (TRG).
This Continuing Airworthiness Notice (CAN) at Revision 2 is revised to clarify the component maintenance requirements below and add a recommendation to replace parts which have reached the manufacturers recommended replacement interval, and inform aircraft operators and maintainers that Robinson Helicopters Corporation (RHC) have revised the component maintenance requirements in Chapter 1.102 of the R44 Series Maintenance Manual dated December 2021. Refer: https://robinsonheli.com/r44-maint-manual/ The revised component maintenance requirements: Electric Fuel Pump P/N D743-1, -2, -3 and -4 must be replaced with a new P/N D743-3 pump at 2200 hours TTIS; and Fuel Pressure Relief Valve P/N D321-1 must be replaced with a new or overhauled part at 12 years, or before 2200 hours TTIS.
The intent of this CAN is to raise awareness of these occurrences and draw attention to the possible early warning signs of engine failure. The CAA has received several reports from operators of Continental CD-135 and CD-155 engines experiencing power loss in flight with associated engine vibrations and a loss of oil pressure.
The CAA has received a report of an aircraft accident which resulted from an in-flight engine roll back to ground idle. The engine roll back appears to have been the result of a failed engine compressor discharge Pressure (Pc) Safety Valve. The intent of this CAN is to raise awareness of this event, and to draw attention to the requirements provided in the Aeronautical Accessories Instructions for Continued Airworthiness (ICA) and Aeronautical Accessories Alert Service Bulletin (ASB) No. AA-06107.
Safran (formerly Turbomeca) Arriel Engines – Counting and Recording Engine Cycles
This Continuing Airworthiness Notice (CAN) is issued to draw attention to a safety concern which was recently reported to the CAA. An AS350 helicopter was found fitted with a non-functioning engine anti-ice system. The investigation revealed that an engine anti-ice valve was not installed on the affected helicopter.
This Continuing Airworthiness Notice (CAN) is raised to draw operator’s attention to findings with Guimbal Cabri G2 engine control cables, and to Guimbal and Lycoming Instructions for Continuing Airworthiness (ICA) requirements pertaining to engine control cables.
This Continuing Airworthiness Notice (CAN) is issued to advise aircraft operators and maintainers of possible burnt intake valves on O-540-F1B5 engines, which can result in partial, or complete loss of engine power.
This Continuing Airworthiness Notice (CAN) is issued to advise Jabiru engine operators of the safety recommendations identified by the Australian Transport Safety Bureau (ATSB) with an investigation of a propeller loss on a Jabiru J430 aircraft in Austral
This Continuing Airworthiness Notice (CAN) 74-003 is to advise that Champion Aerospace LLC has revised Slick Service Bulletin SB2-19 to revision A, dated 14 February 2020.
This Continuing Airworthiness Notice (CAN) is prompted by a recent catastrophic engine failure, which was likely due to a previous hydraulic lock event. This CAN is issued to alert operators/maintainers of Teledyne Continental reciprocating engines of the
This Continuing Airworthiness Notice (CAN) is issued to advise affected helicopter operators and maintainers of two recent occurrences of smoking Rolls-Royce/Allison 250 series engines, due to failure of OEM supplied #5 bearing carbon seal with P/N 689876
Continuing Airworthiness Notice (CAN) 71-002, issue 1 revised to introduce Eurocopter Service Letter (SL) 1706-24-05 dated 8 June 2005, which pertains to the subject of this CAN.
The CAA strongly recommends that operators/maintainers of affected helicopte
This Continuing Airworthiness Notice (CAN) is prompted by reports received by the CAA of operators experiencing a loss of compression and engine power due to cracks found in a number of Lycoming parallel valve cylinders listed in the applicability section
This CAN is prompted by a report received by a New Zealand maintenance organization from Accurate Accessories of suspect bearings installed in certain PTGs which may not reach their TBO.
This Continuing Airworthiness Notice (CAN) revised to introduce Lycoming MSB 632A, dated 23 July 2017, which clarifies the engine models affected, and the required actions.
MSB 632A provides instructions to identify connecting rods fitted with non-conform
This Continuing Airworthiness Notice (CAN) is prompted by two defect reports received by the CAA of finding failed idler gear posts. Both failures occurred on Lycoming IO-540-AE1A5 engines. The first reported idler gear post failure was found during a 100
This Continuing Airworthiness Notice (CAN) is issued to advise of a recent uncontained failure of a 4th stage turbine wheel P/N 23055944 on a 250-C20R/2 engine installed on a MD520N helicopter. In the most current revision of Rolls-Royce CEB A-1400 (CEB A
Precision RSA-10AD1 Fuel Control Unit (FCU) - Possible Fuel Flow Restriction
