Southwest Airlines (Dallas) failed to inspect 128 Boeing 737-700s standby hydraulic systems used to control the rudder if there is a main system failure. The airline discovered the failure to inspect at the proper time, reported the problem to the FAA and got approval to quickly complete the inspections in the next five days.
The airline issued this statement:
Southwest Airlines discovered an overdue maintenance check required to be performed on the standby hydraulic system, which serves as a back-up to the primary hydraulic systems. As a result of this discovery, 128 Boeing 737-700 aircraft were identified as having overflown a required check.
Once identified, Southwest immediately and voluntarily removed the affected aircraft from service, initiated maintenance checks, disclosed the matter to the FAA, and developed an action plan to complete all overdue checks. The FAA approved a proposal that would allow Southwest to continue operating the aircraft for a maximum of five days as the checks are completed.
Approximately 80 cancellations occurred on February 24 as a result of the events and the airline is anticipating a very minimal impact to their operations today (February 25). The Safety of our Customers and Employees remains our highest priority and we are working quickly to resolve the situation.
Today the airline issued this short statement on Twitter:
A select number of aircraft have been removed from service for maintenance checks, resulting in minimal delays.
Copyright Photo: Michael B. Ing/AirlinersGallery.com. Boeing 737-7H4 N905WN (msn 36617) with the special “Kidd’s Kids – Kidd Kraddick in the Morning” markings and the underside Southwest Heart logo, departs from Los Angeles International Airport.