Credit: Boeing
The shortage of large freighters – and continued uncertainty over the arrival of Boeing’s 777-8F – has prompted US regulators to allow the manufacturer to continue building the current 777F for three years after it falls foul of new fuel-efficiency rules.
The FAA this week granted Boeing an exemption allowing up to 35 new 777Fs to receive their first certificates of airworthiness between 1 January 2028 and 1 January 2031.
Without it, the freighter could not be certificated after 2027 because it does not meet incoming US greenhouse gas and fuel-efficiency standards.
Boeing told the FAA it needed to continue production to meet “anticipated customer demand” and maintain widebody freighter supply until the more fuel-efficient 777-8F enters service.
Aviation consultant David Kerr of JTD Advisory told Лодстар there were still more than 30 unfulfilled 777F orders, even excluding aircraft associated with the Russian market.
“The well-publicised shortfall in widebody freighters is improved,” he said, adding that continued production would also give some relief to conversion programmes and their constrained feedstock.
Stan Wraight, president of consultancy SASI World, was more emphatic.
Asked whether he would take a new 777F despite its requiring an exemption from the incoming efficiency standard, he said: “Would I take one? Yes. The 747-400s are just not going to last much longer.”
He believes accelerated MD-11F retirements are adding to the requirement for replacement capacity.
Demand for existing freighters is also exceptionally strong. Mr Wraight recalled one leasing company telling him that, for anyone owning a freighter, finding a customer was “like shooting fish in a barrel”.
Nor is the obvious alternative – converting passenger 777s – necessarily cheap or readily available.
“The planned converted freighters are way, way too expensive right now at about $90m due to the shortage of aircraft to convert,” said Mr Wraight.
Delays to new-generation passenger aircraft are exacerbating the feedstock shortage, he added, as airlines retain 777-300ERs that might otherwise be converted.
Aviation consultancy IBA has similarly highlighted constrained 777-300ER feedstock and estimated a converted aircraft at around $75m-$80m, potentially approaching $100m where engine shop visits are required.
Mr Wraight estimated a new-build 777F at around $160m, but argued the higher initial expenditure could still make economic sense over a decade.
“That $90m converted 777F versus a new 777F at, say, $160m – over 10 years you’re better off with a new build,” he said.
Boeing made a similar argument to the FAA, warning that without continued 777F production operators could be forced to retain older, less-efficient aircraft while new-generation freighters remain under development.
It said a 747-400F could consume up to 37% more fuel per trip than a 777F and its shorter range could require additional stops.
The exemption also offers another insight into the timetable for the 777-8F. Boeing first requested the regulatory relief in December 2025 and supplemented its application in February.
“This isn’t a kneejerk,” said Mr Kerr.
Indeed, the FAA cited “uncertainty in the certification timeline” of the 777-8F when explaining its decision to allow another three years of 777F production.
Mr Kerr said this would also keep Boeing’s Everett facility and associated supply chain flowing, rather than risk a hard stop between production of the 777F and its successor.
But there is an environmental price. Although Boeing describes the 777F as its most fuel-efficient dedicated freighter to date, the FAA calculated that adding all 35 aircraft, assuming no other freighters were retired, could increase fuel burn from US domestic freighter operations and international freighter departures from the US by about 8%, compared with 2024.
However, against total commercial aviation fuel consumption, the FAA said the increase would be a “negligible fraction of a percent”.
Mr Kerr suggested the decision was consistent with environmental considerations taking a reduced priority in the US when weighed against economic interests.
Mr Wraight was more forthright. “As per the environment, that seems to have gone out of the window in decision-making lately, with all the wars, tariffs and other issues in the world,” he said.
But one potentially important commercial question remains: whether other regulators will accept the exempted aircraft.
European safety agency EASA participated in the FAA consultation, highlighting ICAO environmental standards and calling for an environmental assessment and for exempt aircraft to be publicly identified by serial number. The FAA made the latter a condition of approval.
More significantly, it warned that its exemption did not automatically confer acceptance overseas.
“Ultimately, the FAA notes that international acceptance of the exemption will be up to the decision of each affected airworthiness authority,” it said.
Mr Kerr said the possibility of aircraft built under the exemption facing restrictions in Europe could represent a significant constraint and have implications for financing and residual values.
He suggested early financing agreements might therefore contain caveats around regulatory acceptance, potentially including a Boeing backstop should the issue remain unresolved.
For now, however, Boeing has secured the regulatory breathing space it needs in the US.
EASA had not responded to Лодстар’s questions at the time of publication.