Boeing's 737 MAX production cap: from 38 to 47 aircraft a month

The Avolon deal takes the lessor's outstanding 737 MAX commitments past 240 aircraft. Boeing can only fill them at the rate the FAA allows.

Every five-jet step in the monthly cap is worth about 60 aircraft a year, the difference between a delivery slot in 2027 and one in 2028 for airlines still waiting on MAX orders. For Boeing it is cash on delivery: customers pay the bulk of an aircraft's price when it is handed over. For the FAA it is a test of whether the oversight imposed after January 2024 still holds at higher rates.

Where the cap stands now

The FAA capped 737 MAX production at 38 aircraft a month in early 2024, after a door plug blew out of an Alaska Airlines MAX 9 shortly after departure from Portland. It stayed at 38 until October 2025, when the agency lifted it to 42 a month. FAA Administrator Bryan Bedford called Boeing chief executive Kelly Ortberg on 17 October 2025 to confirm the increase, a person familiar with the matter said, and the agency said its inspectors had reviewed Boeing's production lines before signing off.

The second step came faster. On 27 May 2026 Ortberg told the Bernstein Strategic Decisions Conference in New York that Boeing had passed the capstone review for 47 aircraft a month. He warned that reaching 47 would take a few months of stabilization.

The paperwork caught up on 20 October 2026, when the FAA issued the amended type certificate for the 737 MAX 10 and updated Boeing's Production Limitation Record, authorizing production. The MAX 10 certificate itself landed nearly six years after Boeing had planned to put the variant into service.

What each step is worth

At 38 aircraft a month Boeing built 450 737 MAX aircraft a year. At 42 that becomes roughly 504. The step from 42 to 47 adds about 60 aircraft a year, which Boeing equates to up to $5 billion in additional annual revenue.

The order book is what makes those increments worth arguing over. Boeing held 4,774 737 MAX aircraft on its backlog as of 30 November, which Forecast International calculates as about 6.3 years of production at a sustained 63 aircraft a month. AeroTime put the unfilled order book at more than 4,600 aircraft. The two counts differ by more than 100 aircraft, and only the Forecast International figure carries a date.

The 737 MAX 10 is the largest single slice of that backlog. It accounts for 1,555 orders from more than 30 customers, or about 30 percent of Boeing's undelivered MAX orders.

Why the next step is not automatic

Boeing plans to raise output five aircraft at a time, with each increase subject to a safety and quality review by the FAA, Ortberg told analysts. He has said the company anticipates roughly six months between increases. The 52-a-month target is dated early 2027.

Ortberg has acknowledged Boeing has work to do first, and that the process would take at least six months if the 47 rate took effect in July or August.

Outside analysis is more cautious. Forecast International said the program looks operationally stabilized closer to 38 aircraft a month, and that Boeing has not demonstrated sustained stability at 42, let alone above it. Suppliers are the other constraint. Spirit AeroSystems builds 737 fuselages in Wichita, Kansas, and both companies have worked through component shortages and rework delays that the FAA has monitored since 2024.

What happens next

Ortberg has said the company would like to reach 63 a month someday and that the market will support it.

Forecast International is not projecting 63. Its analysts calculate that getting there by 2028 would need FAA approval for increases of about five aircraft a month every six months from 2026, with stability proven at each level first. The FAA has said its direct oversight of Boeing will remain unchanged as rates rise.

Deliveries of the 737 MAX 10 are due to begin in 2027. Until the FAA signs the next rate increase, 47 a month is the number that matters for airlines in the queue.