Most operators are aware of these limits and track their time and usage to schedule replacement when required. But what about the life-limited aircraft parts contained WITHIN aircraft assemblies?
Many factors will cause a low or high oil pressure indication on TFE731 engines. One of the more common causes is a faulty Breather Pressurizing Valve (BPV).
Recently, I have experienced an increase in the number of inquiries about the Attitude Heading Reference System (AHRS) in the Learjet 31A. Between Service Bulletin (SB) 31-34-9, the Illustrated Parts Catalog (IPC) 34-24-11 and the Aircraft Maintenance Manual (AMM) 34-28-00, there are numerous errors.
FANS 1/A – CPDLC is one of the many components of NextGen and will play an integral part in many aspects of future systems.