Conversion of the main passenger cabin to a class E cargo compartment for the carriage of freight and change to the location of rapid decompression vents for planned future bulk cargo loading operations.

Bulk cargo restraint system to the Saab 340 aircraft permitting 2 different configurations. Each can accommodate bulk loaded cargo. Configuration 1 is able to accommodate euro pallets, Configuration 2 accommodates mail trolleys. For operators not wishing to accommodate mail trolleys, deletion of the structure associated with Configuration 2 removes unnecessary inspection time. Not installing at the time of conversion also saves installation time and cost, and hence aircraft down time.

Rework of Class E cargo role of QC variant EASA.A.S.03464

Rework of Class E cargo role of QC variant
Limitations: Prior to installation of this modification the installer must determine that the interrelationship between this modification and any other previously installed modification will introduce no adverse effect upon the airworthiness of the product. The install.
Conditions: n/a

Installation of cabin and cargo floorboards.

Saab 340 Bulk Cargo Restraint System (as defined in document S21 MDL-0034). This major change will introduce transverse nets at discrete positions in the aircraft main cabin (converted to Class E under STC Twenty One Limited major change S21.25-63-1015) to
Limitations: This STC must be used in conjunction with EASA STC EASA.A.S.01681 "Saab 340 Class E Cargo Compartment"..
Conditions: n/a

Saab 340 Class E Cargo CompartmentThis significant major change, designed by STC WP EASA.A.S.01681Twenty One Limited, will convert the main passenger cabin to a class E cargo compartment for the carriage of freight
Limitations: --.
Conditions: n/a

Installation of replacement floor panels in the cabin and cargo compartment.

Enlarge Class 'C' cargo compartment by relocating cargo bay bulkhead forward to F.S. 594.1.

Provides substitute floor panels in the cabin and cargo compartments.