AA-5 Series
Maintenance Manual
HORIZONTAL STABILIZERS – MAINTENANCE PRACTICES
NOTE:
It is important to inspect the horizontal stabilizer spar attach points on the fuselage after
a hard landing, wing tip strike, strike to the tail tie-down ring, or after any damage to
the empennage. The area should also be inspected prior to installation of the horizontal
stabilizer.
1.
Horizontal Stabilizer Forward Spar Attach Point Inspection
(AA-5A and AA-5B)
(1)
Remove the aft fuselage inspection covers below the vertical fin. (Refer to Chapter 53)
(2)
Remove the flashing beacon power supply. (Refer to Chapter 33)
(3)
Through the large lightening hole in horizontal bulkhead (5) use a suitable light and mirror to
perform the following inspections: (Refer to Figure 3)
(a)
Inspect spar support angles (1 and 2) for delamination, cracks and buckling above and
below stabilizer spar (3). Also inspect the upper flanges of the angles for cracks in or
near the bend radii.
(b)
Inspect the angles for cracks or buckling around stabilizer attach bolts (8).
(c)
Inspect the lower stiffener in areas (6 and 7) for cracks and/or delamination.
(d)
Inspect the exterior skins on either side of angles (1 and 2) for cracks.
(4)
If any damage is found, remove stabilizer spar (3) and repair or replace damaged angles (1 and
2) and stiffener (6/7) and any other damage in accordance with Chapter 20 of this manual,
Service Kit 125A and /or AC43-13.
(5)
Reinstall the flashing beacon power supply. (Refer to Chapter 33)
(6)
Reinstall the aft fuselage inspection covers below the vertical fin. (Refer to Chapter 53)
55-1-1
Page 201
Rev. 03/01/04
