Find the error in possessive construction in the following sentence. The sentence contains one error. Write the correct sentence in the space provided.

Passenger's concerns about cell phone use on planes are justified

The error in the possessive construction is that, instead of passenger's, it should be "passengers'". The apostrophe should be after the letter "s" because the noun is in the plural form. The correct sentence would be "Passengers' concerns about cell phone use on planes are justified."