NFL admits error on 51-yard TD run by Seahawks’ Percy Harvin
Sylvester 
“All scoring plays are reviewed by the instant replay official, in conjunction with the NFL officiating staff in New York, and are not subject to a coach’s challenge,” NFL spokesman Michael Signora said in a statement. “Following the first quarter touchdown run by Percy Harvin, the game should have been stopped for a replay review, either by the replay official or by the officiating staff in New York.
“The touchdown was incorrectly confirmed, and as a result, the game was not stopped. Had the game been stopped for a replay review, the touchdown would have been reversed because Harvin stepped out of bounds at the San Diego 21-yard line.”