No sooner done with one unbalanced engine we move on to the next..
Recommendations
without a MANDATE DIRECTIVE and of serious concern..in other words they can do as they please!
HEADS UP!
CF6-45/50
Note: This will test just how robust this site is to pressure from commercial interests at the expense of OUR Safety
"The first recommendation asks that the FAA require operators of aircraft equipped with a particular model engine to immediately perform blade borescope inspections (BSI) of the high pressure turbine rotor at specific intervals until the current turbine disk can be redesigned and replaced with one that can withstand the unbalance vibration forces from the high pressure rotor. The second recommendation asks the FAA to require the engine manufacturer to immediately redesign the disk. The NTSB issued an additional recommendation for a requirement that operators perform a second type of inspection and another recommendation related to the engine manufacturer regarding the installation of the replacement disk."
Document SB-10-20 May 27 2010. NTSB
URGENT
More reading here:
Four Recent Uncontained Engine Failure Events Prompt NTSB to Issue Urgent Safety Recommendations to FAA @ AMTOnline.com Top News
and officail document here
http://www.ntsb.gov/recs/letters/2010/A-10-098-101.pdf