Supply chain issues and certification of new first- and business-class seat models have delayed deliveries to airlines.

Certification and fit issues with fancy new business class seats are hampering ... aviation journalist Andreas Spaeth first reported the issues on Tuesday. Lufthansa is also unable to receive ...

Lufthansa plans to operate up to nine Boeing 787-9s from 15 already completed 787s that are still awaiting U.S. certification ...

Those who have already booked these flights, according to the announcement, will have a free upgrade to an Allegris seat. Lufthansa’s Allegris First Class has garnered the most buzz as they've ...

Lufthansa's new Allegris cabins on the Boeing 787s are held up in certification, a spokesman said. Singapore Airlines said in November that it will bring first-class seats to its longest flights ...

The seats also lack Allegris' modern amenities. Business class on Lufthansa's Boeing 747-8.Stephen Brashear/Getty Images Lufthansa confirmed the 747's old first-class seats would remain in place ...

The seats also lack Allegris' modern amenities. Lufthansa confirmed the 747's old first-class seats would remain in place as the airline works out the shaping challenge. Lufthansa has 34 Boeing ...