Boeing had stated it will submit the repair to the FAA final week, and it had gathered tons of of trade representatives at its Seattle-area services final Wednesday to reveal the software program adjustments.
However the FAA stated Monday that the corporate concluded “extra work” is required.
“The FAA expects to obtain Boeing’s closing package deal of its software program enhancement over the approaching weeks for FAA approval,” the company stated in an announcement. “Time is required for added work by Boeing as the results of an ongoing overview of the 737 MAX Flight Management System to make sure that Boeing has recognized and appropriately addressed all pertinent points.”
Boeing acknowledged the brand new timeline, saying in an announcement that the software program change can be “accomplished within the coming weeks.” It didn’t say why the timeline had modified.
“Security is our first precedence, and we are going to take an intensive and methodical strategy to the event and testing of the replace to make sure we take the time to get it proper,” the corporate stated.
American Airways stated Monday afternoon that it was conscious the MAX “could also be additional delayed” in returning to service. It has been compelled to cancel dozens of flights day by day whereas the planes await a repair.
Capt. Dennis Tajer of the Allied Pilots Affiliation, which represents American Airways pilots, stated the group was inspired by Boeing’s current “sense of vitality” to provide a repair but additionally realized the timeline was bold.
“We had been disregarding that as a result of having the pilots totally engaged, as they’re, and all the data, and realizing what the coaching shall be all put this out as extra of a distant timeline for getting the plane flying,” Tajer informed CNN.
The FAA adopted different international locations’ aviation authorities in grounding the MAX on March 13 following the second crash in lower than 5 months. The company stated it had reviewed satellite tv for pc information and bodily proof that confirmed similarities between the Lion Air flight that crashed in October and the Ethiopian Airways flight that crashed days earlier in March.
A preliminary report on the Ethiopian accident is anticipated within the coming days.
Software program designers, Boeing engineers and take a look at pilots had labored out a set of adjustments to a stabilization system often called MCAS that has been beneath scrutiny from investigators piecing collectively the Lion Air crash, in keeping with an organization official. The repair brings in a number of layers of safety and is accompanied by a coaching routine.
Tajer, of the Allied Pilots Affiliation, stated the software program adjustments Boeing demonstrated final week “instantly addressed the issues that we voiced to Boeing” following the October crash.
The FAA assertion stated the software program adjustments would require a “rigorous security overview.”
“The FAA won’t approve the software program for set up till the FAA is happy with the submission,” the company stated.
CNN’s David Shortell contributed to this report.