By Scott Hamilton
Special Coverage of the Boeing crisis
Jan. 24, 2024, © Leeham News: What began as a non-fatal accident with an Alaska Airlines 737 MAX 9 on Jan. 5 has blown into a full crisis for Boeing. The company was once considered the gold standard of commercial aviation.
Today, 171 737-9s remain grounded in the US by the Federal Aviation Administration (FAA). There is no end in sight as the FAA and National Transportation Safety Board (NTSB) investigate the accident of Flight 1282 in which a door plug (an inactive emergency exit) blew off the 10 week old Alaska MAX 9 on climb out from Portland (OR).
It is the second time the MAX has been grounded. All MAX 8s and MAX 9s were grounded from March 2019 for 21 months. This grounding only affects the MAX 9.
Evidence points to Boeing quality assurance flaws in final assembly. An anonymous Boeing employee posted on LNA a detailed scenario how Boeing failed its own processes in final assembly of the Alaska plane. (His post follows this article.)
The FAA is booting more inspectors on the ground at the 737 Renton factory. On Jan. 24, Boeing shut down the 737 assembly line for a “safety stand down.” CEOs of Alaska and United airlines, the two US carriers with the 171 MAX 9s on the ground, publicly eviscerated Boeing.
Related Articles
At the first aviation conference following the Alaska incident, the Aviation Week suppliers event, some speakers called for leadership changes at Boeing.
Special Coverage of the Boeing crisis
Jan. 23, 2024, © Leeham News: When in trouble, Boeing turned to a retired US Navy Admiral for the second time.
Last week, CEO David Calhoun announced that Adm. Kirkland Donald was named as special advisor to Calhoun. “Donald and a team of outside experts will conduct a thorough assessment of Boeing’s quality management system for commercial airplanes, including quality programs and practices in Boeing manufacturing facilities and its oversight of commercial supplier quality,” Boeing said in a statement.
It’s the second time Boeing turned to an admiral in connection with 737 MAX crises. In September 2019, the company turned to one of its Board of Directors members, Adm. Edmund Giambastiani, to head a new board-level safety committee to review a plethora of safety items in Boeing Commercial Airplanes. Then-CEO Dennis Muilenburg asked the Board the previous April to establish a Board committee to review Boeing’s safety practices and recommend next steps.
At the time, the MAX had been grounded for six months, with no end in sight. (Another year and two months would pass before the Federal Aviation Administration recertified the MAX.)
Donald and Giambastiani came from the nuclear navy, where safety measures are among the world’s best. Since the creation of the nuclear navy, there have been only two instances where ships were lost—and neither of them was directly related to nuclear power.
The submarine USS Thresher was lost on a test dive in 1963. The submarine USS Scorpion was lost in 1968. The Thresher’s loss was traced to disastrous flooding at a depth from which the sub could not overcome the flooding to surface. The Scorpion’s loss remains controversial to this day. Some believe it was sunk during the Cold War by a Soviet submarine. Others believe a torpedo suffered a “hot run” accident in the torpedo room and blew up before it could be disarmed.
Subscription Required
By Scott Hamilton
Jan. 22, 2024, © Leeham News: The grounding of the Boeing 737-9 MAX is likely to delay certification of the 737-7 and 737-10, customers fear.
At a minimum, certification of the 737-7 is likely to shift by months, customers suggest. Certification of the MAX 7 has been repeatedly shifting. Boeing hoped that certification would be achieved in 2022 or 2023. It’s now 2024. In December, Boeing asked the Federal Aviation Administration (FAA) for an exemption to safety standards for a deicing of the leading edge of the composite engine nacelle. There already was opposition from some pilot unions to this request. Now, with the Jan. 5 grounding of the MAX 9 due to the Alaska Airlines Flight 1282 decompression, some believe this exemption won’t be granted.
Flight testing for the MAX 7 is all but done. Boeing hoped to deliver the first MAX 7s to launch customer Southwest Airlines this year.
Flight testing for the MAX 10 is in its early stages. Certification processes were suspended during the MAX grounding, which ended in November 2020. Testing has been slow since because there are only a few MAX 10s available for testing, and due to the slow certification process for the MAX 7. One MAX 10 customer fears certification will be delayed 6-12 months. This would shift deliveries from early 2025 to later in the year or into 2026.
By the Leeham News Team
Jan. 15, 2024, © Leeham News: It’s not supposed to happen.
The door plug on the Boeing 737-9 MAX isn’t supposed to separate from the airplane in flight, as it did on Alaska Airlines Flight 1282 on Jan. 5 this year.

There is conflicting reporting whether the emergency exit or door plug is opened on the Boeing 737 final assembly line for access to the interior. Examining Google images, two photos show the exit or plug closed while over-wing exits are open. Credit: Unknown.
The investigation by the National Transportation Safety Board (NTSB) is in its infancy. Early evidence suggests four bolts intended to prevent the door plug from shifting in its attachment brackets either failed or weren’t installed. Inspections after the 1282 incident by Alaska, and United Airlines found loose bolts in other MAX 9s. The Federal Aviation Administration (FAA) on Jan. 6 grounded the 171 MAX 9s operated by the two carriers until inspections and repairs, if needed, are completed.

This photo of a Boeing 737-900ER for Turkish Airlines shows a door plug closed on the 737 final assembly line. The over-wing exits are open. Credit: Unknown.
Boeing CEO David Calhoun, while telling CNBC that he wasn’t pointing fingers, did precisely that. He said Spirit AeroSystems had a “quality escape,” adding that Boeing failed to catch it, so it also had a quality escape.
How could this happen? The NTSB probe will presumably figure this out. Spirit ships the 737-9 fuselages with the door plug installed. Conflicting reporting suggests that Spirit is supposed to install the door plugs in the final, secure condition; or these are shipped with the plugs in place but in a condition that Boeing would later secure. The NTSB will sort this out, too.
Regardless, Boeing should have inspected the door plugs and assured these are in final condition prior to delivery. The Seattle Times reported on Jan. 14 that contrary to other reports, Boeing doesn’t open or remove the door plug when the MAX 9 is in final assembly. A retired Boeing safety employee with assembly line experience says Spirit ships the door plugs in a temporary condition, expecting that Boeing may remove them during final assembly.
By the Leeham News Team
Jan. 12, 2024, © Leeham News: The Federal Aviation Administration today announced it is boosting its oversight of Boeing production and manufacturing on the 737-9 MAX.
The FAA’s been overseeing Boeing deliveries of the MAX since recertifying the airplane in November 2020. Following the discovery of production issues of the 787 in October 2020 that resulted in Boeing suspending delivery for more than a year, the FAA also assumed certification by an FAA official.
With today’s announcement, the FAA said it will add “new and significant actions to immediately increase oversight” to audit the MAX 9 production line and its suppliers to “evaluate Boeng’s compliance with its approved quality procedures.
The FAA also will increase monitoring of MAX 9 in-service events and assess the safety risks of delegated authority. The full announcement is below.
By the Leeham News Team
Analysis
Jan. 8, 2024, © Leeham News: Following in the footsteps of the 737 rudder bolt omission inspection just last month, we have the Jan. 5 incident on Alaska Airlines Flight 1282 in which an emergency exit plug door blew off the airplane at 16,500 ft. This may indicate another quality assurance failure at either Boeing or Spirit AeroSystems.

The door plug design used on the Boeing 737-900/900ER, 737-8-200 and 737-9. Credit: Boeing, via the National Transportation Safety Board.
We don’t know if this is a Boeing problem, a Spirit problem, a bolt manufacturer problem, or an Alaska Airlines problem. It’s way too soon in the investigation to draw conclusions. Certainly, because it’s Boeing’s name on the airplane, and especially given the MAX history, people are jumping to the conclusion that Boeing screwed up again. While this may ultimately prove true, LNA is not at all prepared to conclude today that this is the case.

Illustration of the bolt locations securing the Boeing 737-9 door plug to the airframe. Credit: Capt. Chris Brady.
The flight left Portland (OR) for Ontario (CA) about 4:30pm. Six minutes later, as the two-month-old Boeing 737 MAX 9 was climbing through 16,500 ft to cruising altitude, the inactive emergency exit plug door, aft of the wing on the left side of the plane, separated from the aircraft. Decompression followed, with an emergency descent and landing back at Portland. There were no serious injuries.

The area where the door plug and cell phones fell from Alaska Airlines Flight 1282. Credit: Google Earth, NTSB.
Boeing and Spirit have been plagued in recent years by quality “escapes.” Inspection and quality assurance may be the culprit again. The official investigation will take some time. The rapid issuance of the Emergency AD Note mandating only a one time inspection is a logical response to something having been misassembled, with the fix being to verify it is assembled per drawing. Whether this is another piece of poor workmanship not being caught by inspection remains to be seen.
The following analysis was compiled by LNA’s news team.
By Dan Catchpole
Subscription Required
Nov. 6, 2023, © Leeham News: Spirit Aerosystems’ new CEO Pat Shanahan’s focus right now is “to restore confidence in the company” with its biggest customers—Airbus and Boeing.
During a Nov. 1st conference call discussing the company’s third quarter earnings, Shanahan said, “I recognize we have disappointed our stakeholders.”
Shanahan just came on as chief executive in October to help turn around Spirit, which has been flailing, along with much of the aerospace supply chain. Boeing and Airbus will be watching Shanahan’s progress. He gained a reputation as Mr. Fix-It during his time at Boeing.
By Dan Catchpole
October 25, 2023, © Leeham News: Boeing slashed its 737 MAX delivery forecast for the year to between 375 and 400 in its third quarter earnings report on Wednesday. The company attributed the cut to rework and inspections to fix manufacturing problems in aft pressure bulkhead sections produced by beleaguered supplier Spirit AeroSystems. It maintained its 787 delivery forecast of 70 to 80 airplanes by year’s end.
Boeing recorded a loss of $1.6bn in the third quarter, its worst quarterly performance this year. The company continues to struggle with supply chain and production problems. Boeing’s defense division spilled the most red ink on the ledger book due to problems on its Air Force One (VC-25B) program and losses on a satellite contract. BDS recorded a $924mn loss. Boeing executives acknowledged that the company’s recovery is taking longer than they had expected, but they remained upbeat about stabilizing the aerospace giant in the next couple years.
Subscription Required
By Dan Catchpole

The U.S. Air Force accepted the first of five T-7A Red Hawk test aircraft from Boeing on Sep. 14th. (Image courtesy of USAF and Boeing Co.)
October 23, 2023, © Leeham News: Wall Street analysts expect Boeing to post its biggest quarterly loss of the year when it reports its third quarter earnings on Wednesday. The company’s commercial and defense divisions continue to struggle with rework, slow work, supply chain snafus, and other challenges for both its commercial and defense and space divisions. Those divisions’ losses likely will be offset somewhat by Boeing Global Services, which continues to be a bright spot on the company’s otherwise blood-red ledger book.
Analysts aren’t expecting any big surprises, just more of the same financial dark clouds that have been camped out over Boeing in recent years. They expect Boeing to announce a loss due to well-known challenges, especially with its 737 and 787 programs, as well as ongoing struggles within Boeing Defense, Space and Security. In recent research notes, investment analysts have forecast BDS posting a loss between $475m and $500m for the quarter.
Across Boeing’s divisions, Wall Street expects the company to book more than $1bn in losses. Projections vary by as much as $1bn. At the low end, TD Cowen expects a loss of just under $900m. At the other end, Bernstein projects about $1.85bn in losses. In either case, that would be the biggest loss since 2022’s third quarter, when Boeing posted a $3.3bn loss.
By Bryan Corliss
Subscription required
Oct. 2, 2023, © Leeham News – Tom Gentile is out as CEO of Spirit AeroSystems, the victim of a number of serious production missteps and a failure to lead the Tier 1 supplier into a stronger position following the Covid-19 pandemic and the grounding of Boeing’s 737 MAX.
The new interim CEO is Pat Shanahan, a long-time Boeing and Pentagon executive who has been serving on Spirit’s board since 2021.
Spirit said its board is conducting a search for a new chief executive.
Related Article: