EASA AD US-2020-16-51
Aug 11, 2020[Final Rule] Pneumatic - Engine Bleed Stage 5 Check Valves - Inspection
The Final Rule titled 'Pneumatic - Engine Bleed Stage 5 Check Valves - Inspection' is an airworthiness directive issued by the FAA for all Boeing 737-300, -400, -500, -600, -700, -700C, -800, -900, and -900ER series airplanes. It mandates inspections and, if necessary, replacement of the engine bleed air 5th stage check valves on each engine due to reports of valves stuck open causing single-engine shutdowns. This directive addresses a critical safety risk related to potential dual-engine power loss.
- Boeing 737300400500600700700C800900900ER