59-24-03 BROWN-LINE CORPORATION SAFETY BELT: Applies to All Model WB-2002-2 Safety Belts.
Investigation of two recent accidents involving aircraft in which the subject model safety belts were installed, disclosed that the wearer could not free himself from the belt, thereby preventing his escape from the aircraft. The design of this belt buckle is such that it will not enable the wearer to quickly and easily release the belt from the buckle. Thus this belt does not conform with Section 4.1.2 of TSO-C22 (See NOTE) and compliance is considered essential to safety in cases of fire or emergencies involving landings in water.
Accordingly, since this model safety belt does not meet the necessary safety requirements, it is not acceptable for installation in civil aircraft. Furthermore, all belts of this model that are in service must be replaced with acceptable safety belts within the next 25 hours of service time or the next periodic inspection whichever occurs first.
NOTE: Section 4.1.2 of TSO-C22 states in part: ". . . . shall include an easily operable quick release mechanism which will enable the wearer to release himself easily under a load simulating the wearer hanging in the belt".