Squawk Box

February 2005 Issue

Squawk Box: 02/05

The following information is derived from the FAA’s Service Difficulty Reports and Aviation Maintenance Alerts.


Airborne/Parker Hannifin
Vacuum Pumps

The FAA published a Special Airworthiness Information Bulletin (SAIB) reminding owners of single or multi-engine piston airplanes of the need to properly maintain pneumatic system components that power air-driven gyro instruments. Specifically, the SAIB recommends following the applicable maintenance, inspection and replacement instructions published by Parker Hannifin for their Airborne-brand vacuum pumps and components. The company’s service letters are available on the Internet at