'It's become an embarrassment': Boeing CEO under fire from year from hell that's seen a QUARTER of company value wiped out after endless scandals

Boeing CEO Dave Calhoun is being slammed by industry experts after a scandal-ridden year caused shares to plummet.

Calhoun's company lost $4 billion in value on Tuesday as the airline maker's stock slumped to a five-month low after news broke late Monday that whistleblower John Barnett was found dead in a hotel parking lot.

There have been six safety incidents in just over a week for the aviation giant amid  a slew of safety issues, emergency landings and near fatal incidents.

Calhoun took over as chief executive in 2020 after two fatal 737 Max crashes put the model on a nearly two-year long grounding, and now experts are criticizing his ability to bounce back from a crisis.

'It's become an extreme embarrassment. The board seems weirdly absentee, investors seem weirdly complacent, and the government doesn't seem to have a mechanism for dealing with this,' Richard Aboulafia, managing director of the consulting firm AeroDynamic Advisory, told CNN. 

Boeing CEO Dave Calhoun is slammed by industry experts after a scandal ridden year has caused shares to plummet

There have been six safety incidents in just over a week for the plane maker following a slew of safety issues, emergency landings and near fatal incidents

'It's been three years of 'there's no way Calhoun can stay at the helm,' but he seems to be staying at the helm. I do not get it.'

Boeing paid Calhoun $22.5 million in 2022 but denied him a $7 million bonus because the company failed to get its new 777X jetliner in service by the end of the year. His 2023 compensation has not been announced.

On March 13, an American Airlines Boeing 777 carrying 249 people was forced to make an emergency landing at LAX after a 'mechanical problem'.

Flight AA 345 was arriving from Dallas Fort Worth and landed in Los Angeles around 8:45 p.m.

The aircraft taxied along the runway and all passengers and crew onboard were able to disembark using a jet bridge.

Initial rumors suggested that the issue was a blown-out tire, reported KTLA. 

A United Airlines Boeing 777 en route to Japan from San Francisco was forced into an emergency landing in at LAX when it lost a tire on March 11.

On March 11, passengers on board a Latam Airlines from Sydney to Auckland were left traumatized after 50 were injured when their Boeing 787-9 plunged from the sky, throwing passengers against the ceiling, before landing safely. 

Another Boeing jet was forced to make an emergency landing in LAX after taking off from San Francisco due to hydraulic issues on March 9.

On March 7 a United Airlines Boeing 737 was forced to make an emergency landing and return to George H. Bush Intercontinental Houston Airport moments after takeoff.

Heart-stopping video caught the moment the Boeing jet's engines exploded and burst into flames in the skies above Texas.

The terrifying incident took place just minutes into a United Airlines flight bound for Fort Myers, Florida.

Video taken from a passenger window shows white-hot flashes streaming out of the  737's jet engine.

A United Boeing jet bound for San Francisco (seen here) was forced to land Monday after hydraulic fluid was filmed spewing from its landing gear area moments after take off

A few days later, on another United flight, a wheel fell off a Boeing 777-200 shortly after takeoff in San Francisco .

Earlier in March, heart-stopping video has caught the moment a Boeing jet's engines exploded and burst into flames in the skies above Texas forcing an emergency landing

The model of plane in the Houston incident was a Boeing 737-900, a similar jet to the Max fleet which was grounded in January after an exit door blew out during an Alaska Airlines flight over Oregon. 

NTSB leaders said the door plug that failed was opened during the repair work months earlier but that Boeing has not ben able to locate records of the work.

'To date, we still do not know who performed the work to open, reinstall, and close the door plug on the accident aircraft. Boeing has informed us that they are unable to find the records documenting this work,' Jennifer Homendy, NTSB chair, wrote in the letter.

In response to a federal audit in the US, Boeing said Tuesday that it would work with employees found to have violated company manufacturing procedures to make sure they understand instructions for their jobs.

The aircraft maker detailed its latest steps to correct lapses in quality in a memo to employees from Stan Deal, president of Boeing's commercial plane division.

The memo went out after the Federal Aviation Administration finished a six-week review of the company's manufacturing processes for the 737 Max jetliner after a panel blew off during Alaska Airlines flight on January 5.

The FAA reviewed 89 aspects of production at Boeing's plant in Renton, Washington, and found the company failed 33 of them, according to a person familiar with the report.

Boeing whistleblower, Barnett, who had testified against the company days before his death shot himself with a handgun and left a suicide note in his vehicle on Saturday.

The ex-quality manager at Boeing's North Charleston plant died seven years after he retired following a 32-year career.

It has been less than three months after he warned about the production processes of both the 737 and 787-Dreamliner.  

In January, Barnett appeared on TMZ to provide his take on a technical failure that saw a door fly off its hinges of a 737 - a model he said was being victimized by recent shifts in strategy along with the 787.

His warning would prove prophetic, as a 787 experienced a midair 'technical event', injuring 50 passengers.

Former Boeing quality manager John Barnett (pictured) was found dead in South Carolina on Saturday with what appeared to be a self-inflicted gunshot wound to his head, police said 

Bolts appear to be missing from the door plug that blew out of a Boeing 737 MAX during an Alaska Airlines flight on January 5

In January, Barnett explained why he believed both models were ticking time bombs, as both incidents remain under investigation.

'This is not a 737 problem - this is a Boeing problem,' he said after being asked if he believed the 737 was safe to fly following the door incident and a subsequent FAA inspection.

The Arlington, Virginia-based company has seen its price on Wall Street drop by over ten percent over the last week. 

'If you ask me, the first thing that needs to happen for Boeing to gain trust is to basically fire the entire C suite,' said Gad Allon, a professor at the University of Pennsylvania's Wharton School of Business.

'I know that will not happen, but there is not a single person that has a C in front of their title that is not responsible for what we're seeing now.'