Possible Clues:

• Cause of in-flight turbulence
• Localized downdraft
• Cause of turbulence
• Legal successor heard to gain from flying hazard
• Region in which planes suddenly drop
• Cause of plane turbulence
• Broadcast appropriate cause of plane's sudden descent?
• Power in a current missile that could bring plane down
• Cause of a sudden drop in altitude
• Melody for one of those six in pool? This is bound to lead to disturbance!