Tirupati SP Patel inspects border checkposts, orders enhanced vigilance, vehicle checks for 2024 elections. Emphasizes meticulous seizure record-keeping, crackdown on sand, gravel smuggling, and district-wise seizures scrutiny by election authorities. Govt directs officers to inspect highway stretches to detect encroachments, unauthorised occupation. Boeing advises 787 Dreamliners cockpit seat inspection after Latam Flight 800 incident.