Boeing 737 MAX 8

The Boeing 737 MAX 8 is the most-ordered variant of the fourth generation of the 737 family, replacing the 737-800. Re-engined with high-bypass LEAP-1B engines and split-tip winglets, it offers roughly 14% better fuel burn than the 737NG it succeeded — at the cost of one of the most consequential certification crises in aviation history.

Specifications

History

Boeing launched the 737 MAX program in August 2011 as a fast response to the A320neo. First flight took place on 29 January 2016, and entry into service was with Malindo Air on 22 May 2017. Following two fatal accidents — Lion Air 610 (29 October 2018) and Ethiopian Airlines 302 (10 March 2019) — caused by the MCAS flight-control system, the MAX was grounded worldwide on 13 March 2019. After 20 months of investigation, software changes, and pilot-training revisions, the FAA returned the MAX to service in November 2020. Other regulators followed through 2021. By the mid-2020s the type had recovered to become Boeing's best-selling narrowbody.

Design

The MAX 8 is structurally similar to the 737NG but features the larger LEAP-1B engines, which had to be mounted further forward and higher on the pylon to maintain ground clearance — geometry that altered the aircraft's handling characteristics at high angle of attack. This was the trigger for MCAS (Manoeuvring Characteristics Augmentation System), the automated stabilizer-trim system implicated in both crashes. The split-scimitar winglets and aerodynamic refinements deliver the bulk of the fuel-burn improvement; the engines deliver the rest.

Variants

• 737 MAX 7 (shorter, baseline range)
• 737 MAX 8 (baseline)
• 737 MAX 8-200 (high-density, Ryanair launch)
• 737 MAX 9 (stretched)
• 737 MAX 10 (longest variant, certification pending)
• BBJ MAX 8 (business jet)

Notable operators

• Southwest Airlines
• Ryanair (MAX 8-200 launch operator)
• American Airlines
• United Airlines
• Air Canada
• TUI Group
• China Southern Airlines

Notable

The MAX 8 is the centerpiece of one of the most-studied aviation safety cases in modern history. The grounding cost Boeing more than $20 billion in compensation, lost orders, and remediation, reshaped FAA certification practices, and led to the Aircraft Certification, Safety, and Accountability Act of 2020. Despite the crisis, the underlying airframe became one of the world's best-selling commercial aircraft once the MCAS issues were resolved.

See also

Sources

• https://en.wikipedia.org/wiki/Boeing_737_MAX
• https://www.boeing.com/commercial/737max

Last updated: 2026-05-06