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While regulators contemplate whether Boeing Co.’s 737 Max can safely return to the skies, workers in a California airplane-storage yard keep a careful vigil against earthier concerns.

Crews have sealed 34 Southwest Airlines Co. jets against the Mojave Desert’s sun, wind and sand, as well as insects and birds that can creep into wheel wells and engine air inlets. Southwest declined to discuss the expense, but one industry veteran said such sojourns run about $2,000 a month for each plane -- a small but critical cost amid Boeing’s many looming financial penalties.

The attention lavished now on the planes will help determine how fast the Max get back in the air once a worldwide grounding is lifted. Designed to ferry throngs of travelers, the young jets’ only daily visitors these days are technicians who draw fuel samples to scout for bacterial contamination. Once a week, Southwest mechanics spool up the big turbofans, boot up flight computers, and extend and retract flight-control surfaces such as wing flaps.

“Planes are meant to be flying and being used,’’ said Tim Zemanovic, who used to own an Arizona storage park and estimated monthly storage costs, which include labor and materials. “You’ve got to keep them that way even when they’re in storage.’’

The constant care extends to almost 500 grounded Max planes around the world, a total that includes about 100 factory-fresh jets that can’t be delivered to customers because of the flying ban, which began in March after the second deadly crash in five months. Managing aircraft upkeep on such a scale is unprecedented, as Boeing grapples with a crisis that has already lopped $41.5 billion off its market value.

Boeing Penalties
The maintenance costs are just the start of Boeing’s financial exposure. The Chicago-based planemaker also faces an estimated $1.4 billion bill for airlines’ canceled flights and lost operating profit if the Max fleet is still grounded by the end of September, said Bloomberg Intelligence analyst George Ferguson.

Boeing’s inventory could balloon by nearly $12 billion by the end of September if regulators don’t act and 737 production continues at the current pace, Ferguson said. “They can’t keep building and parking planes indefinitely,” he said. “We don’t think it will get to that, but it’s going to take a lot of cash to park those in the desert.”

As Boeing finalizes paperwork to certify a redesign of flight-control software linked to the two disasters, executives are laying detailed plans for the Max’s eventual return to commercial flight. The team huddles daily and includes officials from the 737 program, corporate headquarters and the commercial and global-services divisions.

The challenge of safely pulling hundreds of planes out of storage was among the topics discussed at a summit of global regulators convened by the Federal Aviation Administration in Texas, Daniel Elwell, the agency’s acting chief, told reporters after the meeting Thursday.

60-Day Mark
The Max grounding has long since passed the 60-day mark when aircraft are typically placed in long-term storage. Bringing them back to life will now involve a rigorous review that can last weeks as compared to days for planes that are parked for less than two months.

As the global fleet starts to come back online, Boeing plans to set up a round-the-clock operations center to support customers. Teams of mechanics, technicians and field-service representatives will fan out to assist airlines as their jets make the “transition from storage and preservation activities to operational flight,” said Doug Alder, a Boeing spokesman.

Southwest, the largest Max operator, is already planning for the plane’s return even though it’s not clear if that is weeks or months away. “It will be a staggered-type return to service,” said Gary Bjarke, director of contract services for the Dallas-based carrier.

Desert Plain
Until then, Bjarke leads the team overseeing the upkeep of Southwest’s Max fleet parked on a desert plain in Victorville, California, east of Los Angeles. Southwest ferried all its Max planes to the storage yard in the days after U.S. regulators halted commercial flights.

Crews spent about 80 man-hours preparing each jet for storage, and Bjarke estimates it will take about 120 hours of work to get each single-aisle plane back into flying condition. In all, he said, the maintenance checks could take about 30 days before the last of the airline’s parked 737s rejoin daily operations.

https://finance.yahoo.com/news/boein...090000998.html