ICP SAVANNAH S, Maintenance Manual

Page: 101 / 132

MAINTENANCE MANUAL
SAVANNAH S
Doc. No.: MM-SVNH-EN
Revision: 07
Rev. Date: 07/11/2022
Proj. Ref.: SVNH S
A/C: Savannah S Applies to Generic Serial Number: yy-mm-54-xxxx
Page: 101/132
DOC
FMM00
- The elevator cables must be pulled at proper tension by means of Nonio tender (see Chapter
1.14.7 ), with a preliminary length setting;
- Zeroing a digital level bubble (with 0.1° of resolution) in the upper skin of the Stabilizer in the
position shown in
Figure 42 ;
- Pull the control stick totally backward (full nose up). The position must be limited only by the
line stop which is the bell crack support, shown in
Figure 43 . The position of the stick is
directly fixed because the length of the push-pull rod is not to be modified in respect of design
values (
Table 35 );
- Check the Elevator deflection with the digital level in the position shown in Figure 44 . The
angle read must be 19° with +/-0.5° of tolerance Figure 45 . Attention: the Elevator deflection
angle in respect of its chord is rotated of +6° because the reading of the bubble is performed
in the upper skin of the Elevator;
- If the angle resultant is not correct, perform the following procedure:
- Change the Elevator cables length changing both the nonio tenders, the upper and the lower,
with the same offset of holes: one enlarging and the other one shortening;
- Verify newly the Elevator maximum deflection angle and repeat the operations to obtain the
correct value;
- When values are correct, check again the cables tension with the tensiometer, at 18-24 [lbs].
If different, change the tension adjusting symmetrically the Nonio tender.
Figure 42: Digital spirit level position on Stabilizer for Zeroing
First rib rivets line
Stabilizer trailing edge