DGCA Issues Important Advisory on Boeing 737 Rudder Control Safety Risks

Boeing 737 Rudder Control Safety Advisory

The Directorate General of Civil Aviation (DGCA) has issued an important advisory concerning the Boeing 737 aircraft, specifically related to rudder control safety risks. This decision comes in response to findings in a US National Transportation Safety Board (NTSB) Aviation Investigation Report, which detailed potential malfunctions in the rudder control system, particularly in actuators manufactured by Collins Aerospace.

Immediate Measures and Recommendations

The DGCA's interim measures instruct all airlines operating Boeing 737 aircraft to inform their flight crews about the possibility of rudder control issues during flight or landing. This malfunction can occur due to moisture accumulation in the actuator, leading to freezing. Airlines like Air India Express, SpiceJet, and Akasa are impacted; they are warned to emphasize simulated training exercises for scenarios where the rudder control system may become jammed.

• Flight crews should refer to the Quick Reference Handbook for protocols.
• Training must include exercises simulating jammed rudder control systems.

In addition, the DGCA has prohibited these aircraft from conducting 'Category III B' landing operations until further notice. This approach entails precision landings with minimal visibility conditions, emphasizing the need for enhanced crew preparedness and safety protocols.

Potential Risks and Industry Impact

According to the NTSB, more than 40 foreign operators may use Boeing 737 airplanes with rudder components that pose safety risks. Last month, an urgent safety recommendation highlighted the dangers of jammed rudder controls, stressing that existing QRH manual instructions could lead to a loss of control if not properly managed.

Stay informed as DGCA continues to work closely with Boeing and the FAA to address these critical safety issues and implement long-term strategies.