Document Title Document No. Revision
Date Section
Supplement S3 to the AMM CTLS-LSA –
CTLS-LSA with ROTAX 912iS
AF 0480 0011 00 05-Aug-12 28-00-1
Approval Ref.: Approved on the Basis of Manufacturer Self Declaration
CHAPTER 28 – FUEL SYSTEM
Contents
28-00.1 General
28-00.2 Description
28-00.3 Maintenance Practices
28-00.3.1 Fuel System Inspections
28-00.3.2 Fuel Pump Removal and Installation
28-00.3.3 Fuel Hoses and Lines Replacement
28-00.1 General
This chapter provides description of the Fuel System.
28-00.2 Description
The fuel system consists of:
- integrated in to each wing fuel tank with capacity of 65 l (17.2 US.gal) with sight
gauges at the root rib
- Header tank in the rear fuselage with capacity of 6 l (1.6 US.gal) with fuel level
warning sensor
- fuel lines
- fuel tank selector valve
- separate fuel shut-off valve
- electrical fuel pump set
- gascolator with filter screen
- fine fuel filter
- fuel system drainage
- fuel tank venting
- two fuel flow meters (optional)
The principal scheme of fuel system is shown on Fig 28-00.1.
A fuel tank is integrated into the leading edge of each wing. The fuel tanks are each
divided into two sections by an anti-sloshing rib (Fig. 28-00-2). Fuel is filled into the outer
section via a fuel filler opening on the upper side of each wing. Each tank outlet has a
coarse screen which can be removed via a maintenance plate in the root rib for visual
inspection and cleaning. Fuel is fed by gravity via two fuel lines to the fuel selector. After
fuel selector, fuel flows to the header tank. The header tank volume is selected so that
even with virtually empty tanks, enough fuel is available in a sideslip to ensure engine
power for landing. The header tank has a drainable sump. The fuel system must be
drained at this point before the first flight of the day and after filling up with fuel.
The fuel is fed from the header tank to the gascolator which has a fine filter mesh included.
The gascolator is the lowest point in the fuel system and has a drain valve. The fuel
system must be drained at this point before the first flight of the day and after filling up with
fuel. The fuel flows from the gascolator to the electrical fuel pumps, placed under left
baggage compartment. The fuel shutoff valve is located directly before the line passes
through the fire wall.
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