Cyclic AD Limited to New Bells

Aviation International News » May 2009
May 1, 2009, 11:01 AM

What was initially feared to be a widespread problem that temporarily grounded 2,800 Bell 206s, 407s and 427s on March 12 now appears to be confined to about 100 newer-production helicopters. The Emergency AD (2009-07-51) was quickly modified to apply only to helicopters with fewer than 50 hours in service or those that have cyclic control lever assemblies that have less than 50 hours time in service. The
AD was prompted by a Transport Canada AD report of an incorrectly staked bearing in a copilot lever assembly that could lead to failure of the assembly and loss of control. The AD requires replacing before further flight any bearing that is installed incorrectly or staked improperly in the lever assembly.

Share this...

Please Register

In order to leave comments you will now need to be a registered user. This change in policy is to protect our site from an increased number of spam comments. Additionally, in the near future you will be able to better manage your AIN subscriptions via this registration system. If you already have an account, click here to log in. Otherwise, click here to register.