The Bojinka plot was a large-scale, three-phase terrorist attack planned by Ramzi Yousef and Khalid Sheikh Mohammed for January 1995. Wikipedia
Start date: January 6, 1995
Convicted: Ramzi Yusuf; Abdul Hakim Murad; Wali Khan Amin Shah
Target: Pope John Paul II (Phase I); American airliners (Phase II); CIA Headquarters (Phase III)
Weapons: Improvised explosive device; Cessna