The US Federal Aviation Administration (FAA) has published additional information regarding the electrical problems grounding many Boeing 737 MAX aircraft at this time. The FAA now confirms that there is problem with electrical bonding associated with the electrical grounding of equipment and there is potential for degradation. As such an AD was issued on April 22, which confirms potentially affected MAX systems include standby power control units, “P6” circuit breaker panels and main instrument panels. Boeing found and reported the problem during routine testing and informed customers to ground affected aircraft on April 9, 2021. We now know that 106

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