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If your aircraft is equipped with an ELT listed in Table 1, and the ELT is installed in a high vibration environment, for example in the tail of a helicopter, and the ELT has been in service for more than five (5) years, replace the G-switch in accordance with ACR SB1000.Īs an alternative to replacement, accelerated inspections may be performed in accordance with ACR SB1000 during the period from five (5) to ten (10) years in service, after which the G-switch should be replaced.

Pay particular attention to recurring inspection intervals and instructions, which include recurrent testing of the G-switch.

Always follow the Instructions for Continued Airworthiness applicable to the ELT installed in the aircraft.

To address this condition, ACR Electronics has published Service Bulletin (SB) 1000, identifying those ELTs fitted with the original G-switch, prescribing testing, replacement of the G-switch at five (5) years, or alternatively, reducing the normal inspection intervals after five (5) years service to assure continued reliability.

This condition, if not detected and corrected, could result in the ELT not transmitting alert and location signals in case of an accident, which could result in delayed deployment of rescue crews and possibly preventing timely medical assistance to injured crew members or passengers. Further investigations revealed that the performance of the ELT acceleration sensor could deteriorate after having been subjected to high levels of shock and vibration for five (5) years or more. Investigation and testing indicated that in some cases the main longitudinal G-switch was inoperative. The FAA has received reports of ACR ELT model C406 failures.

Engineering.com gswitch code#

This SAIB recommends best practices for the inspection, modification and replacement of these ELTs located in high vibration environments.Īt this time, this airworthiness concern has not been determined to be an unsafe condition that would warrant airworthiness (AD) action under Title 14 of the Code of Federal Aviation Regulations (14 CFR) part 39. ELTs located in high vibration environments, for example in the tail of a helicopter, could have its acceleration sensor deteriorate after having been subjected to high levels of shock and vibration for five (5) years or more.

Engineering.com gswitch serial number#

and doing business as Wulfsberg Electronics) emergency locator transmitters (ELT) G406-4, C406-1, C406-1HM, C406-2, C406-2HM, C406-N and C406-NHM identified by Part Number (P/N) and serial number (s/n) in Table 1 of this SAIB, of an airworthiness concern, specifically the ELT not transmitting alert and location signals in case of an accident due to an inoperative or a deteriorated G-switch. (ACR)(formerly Artex Aircraft Supplies, Inc. This Special Airworthiness Information Bulletin (SAIB) alerts you, aircraft owners and operators with installations of ACR Electronics, Inc. The most advanced weather forecasting models are mixed with in-depth statistical analysis and machine learning data processing to ensure high accuracy.This is information only. presents highly accurate local weather forecasts worldwide based on its own so-called Hybrid Forecasting Technology (HFT). And what's more interesting, the cards compare the weather conditions tomorrow and today, so it's easy to see how the Ashgabat weather will change tomorrow. All cards show the expected times of certain Ashgabat weather events. And the last card represents the maximum probability of precipitation for tomorrow. Third card indicates tomorrow's average and maximal wind forces.

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