7-28 P/N 13772-003
Section 7 Cirrus Design
Airplane and Systems Description SR22T
Seat Belt and Shoulder Harness
Integrated seat belt and shoulder harness assemblies with inertia
reels are provided for the pilot and each passenger. The rear seat
belts are attached to fittings on the floorboard and the forward seat
belts are attached to the seat frame. The shoulder harnesses are
attached to inertia reels mounted in the seat back for the front seats
and on the baggage compartment rear bulkhead for the rear seats.
Each harness is attached to the seat belt. The buckle half of each
assembly is on the left-hand side and the link half is on the right-hand
side. The inertia reels allow complete freedom of movement of the
occupant’s upper torso. In the event of a sudden deceleration, the
reels lock automatically to protect the occupants. It is recommended
that the seat belts be stowed in the latched position when not in use.
An inflatable shoulder harness is integral to each crew seat harness.
The electronic module assembly, mounted below the cabin floor,
contains a crash sensor, battery, and related circuitry to monitor the
deceleration rate of the airplane. In the event of a crash, the sensor
evaluates the crash pulse and sends a signal to an inflator assembly
mounted to the aft seat frame. This signal releases the gas in the
inflator and rapidly inflates the airbag within the shoulder harness
cover, After airbag deployment, the airbag deflates to enable the pilot/
co-pilot to egress the airplane without obstruction.
The crash sensor’s predetermined deployment threshold does not
allow inadvertent deployment during normal operations, such as hard
landings, strikes on the seat, or random vibration.
• Caution •
No slack may exist between the occupant’s shoulder and
restraint harness shoulder strap.
Stow the seat belts in the latched position when not in use.
To use the restraints:
1. Slip arms behind the harness so that the harness extends over
shoulders.
2. Hold the buckle and firmly insert the link.
3. Grasp the seat belt tabs outboard of the link and buckle and pull to
tighten. Buckle should be centered over hips for maximum comfort
and safety.
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