Seat-class girth restriction, Thai Air

Airline passengers who need seat-belt extenders will not be allowed to sit in business class on the new Boeing 787 Dreamliner jets of Thai Airways (800/767-3598, www.thaiairways.com), the airline announced on March 21.

On its new jets, the airline has installed seat-belt airbags in business class. However, the airbags will not work with seat-belt extenders, limiting those seats to people with waistlines of less than 56 inches. The airbags also prevent passengers from flying with infants in their laps.

Seats in all other classes are unaffected.