Originally Posted by
gulliBell
That's great, but what about the 11 times it wasn't done in the previous 13 starts?
Let's go back to the right tree! The case is the possible lack of airworthiness of the S-76 helicopter type. The case is that there might be still hundreds of Servo Actuator Piston's which has been reworked with improper overhaul procedures. In addition the identification of the maintenance history of the reworked piston has been lost. This will make most like impossible to track
defected and unairworthy pistons because nobody doesn't know which pistons have been installed to the specific Servo Actuator. The tracking capability has been lost during the improper overhaul process where the original piston's serial number has been over sprayed by new plasma coating. Due to this is unknown which S-76 helicopters have these improperly overhauled pistons and whichone not.
The type certification of S-76 (transport class helicopter) don't allow any kind of risks "low likelihood" in the critical flight components or critical systems.
This is the a tree that should bark.