The Air Force this week announced 82 F-16Ds remain grounded after structural cracks were discovered between the front and rear pilot seats. The problem was brought to light in late July by a foreign F-16 customer who discovered the cracks while performing an unrelated inspection, Air Force spokeswoman Jennifer Cassidy told Inside the Air Force in an Aug. 21 email. On Aug. 1, the service issued an immediate action time compliance technical order (TCTO) to inspect all F-16D aircraft...