Action
Final rule.
Summary
The FAA is adopting a new airworthiness directive (AD) for all The Boeing Company Model 737 airplanes powered by LEAP-1B engines. This AD was prompted by reports of inadvertent release of the spring energy of the spring door opening system (SDOS) actuator with a certain part number, causing injury and the potential for injury to maintenance personnel. This AD requires replacing each affected SDOS actuator with a new SDOS actuator, and verifying that new safety markers are installed in the proper locations. The FAA is issuing this AD to address the unsafe condition on these products.