(a)
Measure the normal blade thickness at the repair area and record it as the dimension 'T'.
(b)
Calculate the maximal depth 'Y' of the repair as follows: 1 For the area 'A': Y = T x 1.27 mm (0.0500 in.) or Y = 0.51 mm
_ (0.0200 in.). Use the smallest result.
R 1EFF : 062-099, 106-149, 151-199, 204-299, 1 29-22-00Page 803 1301-399, 401-499, 1Aug 01/05 1 1 1CES 1
Repair of Aluminum RAT Blades
Figure 801/TASK 29-22-00-991-029
R 1EFF : 062-099, 106-149, 151-199, 204-299, 1 29-22-00Page 804 1301-399, 401-499, 1Aug 01/05 1 1 1CES 1 2 For the area 'B': Y = T x 1.27 mm (0.0500 in.) or Y = 0.25 mm
_
(0.0098 in.). Use the smallest result.
3 For the area 'D': Y = T x 1.27 mm (0.0500 in.) or Y = 0.51 mm
_
(0.0200 in.). Use the smallest result.
(c) Remove the scratches over an area with a radius 10 times of the permitted depth of the repair, dimension 'Y'.
1 Use the abrasive paper grade 400 and rub along the length of
_
the scratch until the surface is smooth.
(3)
Repair of the damage on the trailing edge and the leading edge in the areas A, B, D.
(a)
Remove the damage over a length 5 times the depth of the damage at each side of the damaged area.
(b)
Rub the area with abrasive paper grade 400.
(4)
Repair of the damage on the tip of the turbine blade (area F).
(a)
Remove the damage from the blade tip corners (area F) in all directions.
(b)
Remove the same quantity of the material from the blade tip corners of the other RAT blade to keep the turbine assembly balance.
(5)
Clean the turbine blades.
(a) Clean the turbine blades with CLEANING AGENTS (Material No. 11-010) and a lint-free cloth MISCELLANEOUS (Material No. 19-003).
(6)
Apply PRETREATMENT FOR PAINTING (Material No. 13-002) to the repaired area.
(7)
Let the solution stay on the surface for a minimum of 1 minute.
(8)
Rinse the applicator with water and discard.
(9)
Wash the reworked area fully with water.
(10) Make the area dry with a new lint-free cloth MISCELLANEOUS (Material No. 19-003).
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5. Close-up
________ Subtask 29-22-00-865-082
A. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s): 2801GE, 2803GE, 6XE
Subtask 29-22-00-869-085
B. Retract the RAT (Ref. TASK 29-22-00-869-006). Subtask 29-22-00-942-066
C. Put the aircraft back to the serviceable condition.
(1)
Make sure that the work area is clean and clear of tool(s) and other items.
(2)
Remove the warning notice(s).
R 1EFF : 062-099, 106-149, 151-199, 204-299, 1 29-22-00Page 806 1301-399, 401-499, 1Aug 01/05 1 1 1CES 1
Repair of Aluminum RAT Blades R Figure 801A/TASK 29-22-00-991-029-A
R 1EFF : 103-105, 203-203, 1 29-22-00Page 807 1 1 May 01/05 1 1 1CES 1 CONTROL UNIT - RAT, GROUND (2815GE) - REMOVAL/INSTALLATION
__________________________________________________________ R **ON A/C 001-049, 051-061, 101-105, 201-203,
TASK 29-22-12-000-001
Removal of the RAT Ground Control Unit (2815GE)
1.
Reason for the Job
__________________
Self Explanatory
2.
Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific blanking caps
No specific circuit breaker(s) safety clip(s)
B. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
29-22-12-991-001 Fig. 401 3. Job Set-up
__________ Subtask 29-22-12-865-050
A. Open, safety and tag this(these) circuit breaker(s):
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------
R **ON A/C 001-049, 051-061, 101-102, 201-202,
R 121VU HYDRAULIC/RAT/CTL **ON A/C 103-105, 203-203,
R 121VU HYD/RAT/CTL **ON A/C 001-049, 051-061, 101-105, 201-203,
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