Extension of Airbrake Blade 3

Applicable Serial Numbers:

01-001 to 01-037

Bulletin Number: SB.JS-013

Active: Yes

Type: Mandatory

Revision: 2.0


The bottom edge of the airbrake blade 3 must remain below the upper edge of the airbrake box; however, compound manufacturing variation may result in the bottom edge of airbrake blade 3 being able to move over the edge of the airbrake cap recess if the aerodynamic forces are sufficiently high. This may cause the blade to jam, preventing the airbrake from retracting fully.

The bottom edge of airbrake blade 3 has been extended downwards, preventing the airbrake blade from being able to slip onto the airbrake cap recess, even in the case of manufacturing variations.