-
maximum 0.6 mm (0.0236 in.) above wing surface (into wind)
-
maximum 1.2 mm (0.0472 in.) below wing surface (out of wind).
(b)
For the panel trailing edge:
-maximum 0.6 mm (0.0236 in.) below wing surface (into wind)
-maximum 2.0 mm (0.0787 in.) above wing surface (out of wind). R **ON A/C 106-149, 157-199, 209-299, 401-499,
(Ref. Fig. 804/TASK 57-41-37-991-016)
**ON A/C 301-399,
(Ref. Fig. 804A/TASK 57-41-37-991-016-A)
R 1EFF : 106-149, 157-199, 209-299, 301-399, 1 57-41-37Page 893 1401-499, 1Aug 01/05 1 1 1CES 1R **ON A/C 106-149, 157-199, 209-299, 301-399, 401-499,
(40)
Measure the step tolerances of the pressure-relief panel ends across the line of flight. These must be as follows:
(a) For the panel ends:
-
maximum 2.0 mm (0.0787 in.) above or below the adjacent panel end (DIM X)
-
maximum 2.0 mm (0.0787 in.) above or below the adjacent wing surface (DIM Y).
(41)
If an into/out of wind step or an end step is not in tolerance, continue as follows:
(a)
Calculate the necessary thickness of the spacer (123) required to make the step correct.
(b)
Get the correct thickness of spacer (123) (Ref. SRM 574126).
(c)
Remove the bolts (108) and the pressure-relief panel (107).
(d)
Put the spacer (123) in position on the applicable landing.
(e)
Drill the applicable landing and the spacer (123) to a diameter between 3.27 mm (0.1287 in.) and 3.35 mm (0.1318 in.) (Ref. SRM 514411).
(f)
Remove the sharp edges from the applicable landing and the spacer (123).
(g)
Put the spacer (123) in position on the applicable landing and install the rivets (124) (Ref. SRM 514211).
(h)
Install the pressure-relief panel (107) with the bolts (108).
(i)
Do again step (38) and step (39).
(42)
Measure the gap between the D-nose skin and the leading edge of the pressure-relief panel (107). The gap must be between 0.5 mm (0.0196 in.) and 4.5 mm (0.1771 in.).
(43)
Measure the gap at the inboard and outboard edges of the pressure-relief panel (107). The gap must be between 0.5 mm (0.0196 in.) and 5.5 mm (0.2165 in.).
R 1EFF : 106-149, 157-199, 209-299, 301-399, 1 57-41-37Page 894 1401-499, 1Aug 01/05 1 1 1CES 1
(44) At the trailing edge of the pressure-relief panel (107), measure:
-the gap between the wing-skin and the edge of the panel. The gap must not be less than 0.5 mm (0.0196 in.).
Subtask 57-41-37-390-054
B. Seal Installation
WARNING : USE SOLVENTS/CLEANING AGENTS, SEALANTS AND OTHER SPECIAL
_______ MATERIALS ONLY WITH A GOOD SUPPLY OF AIR. OBEY THE MANUFACTURERS INSTRUCTIONS. PUT ON PROTECTIVE CLOTHING. DO NOT GET THEM IN YOUR MOUTH. DO NOT SMOKE. DO NOT BREATHE THE GAS. THESE MATERIALS ARE POISONOUS, FLAMMABLE AND SKIN IRRITANT. GET MEDICAL HELP IF YOUR SKIN OR EYES BECOME IRRITATED.
(Ref. Fig. 805/TASK 57-41-37-991-017)
NOTE : Seal only the gap between the trailing edge of the pressure-relief
____
panels and the wing skin.
(1)
Degrease the area to be filled fully with a MISCELLANEOUS (Material No. 19-003), made moist with CLEANING AGENTS (Material No. 11-026).
(2)
Apply masking tape around the edges of the gap to be filled.
(3)
Use a spatula or extrusion gun to insert SEALANTS (Material No. 09-002B) or SEALANTS (Material No. 09-016) into the applicable prepared gap.
(4)
Use a non metallic scraper to remove unwanted sealant before it cures.
(5)
Let the sealant cure (refer to the manufacturers instructions).
(6)
Make sure the surface of the seal is flush with the surfaces of the pressure-relief panel (107) and the wing skin.
(7)
Remove the masking tape from the area around the seal.
(8)
Remove the bolts (108).
(9)
Remove the pressure-relief panel (107). Use a suction cup if necessary.
R 1EFF : 106-149, 157-199, 209-299, 301-399, 1 57-41-37Page 895 1401-499, 1Aug 01/05 1 1 1CES 1
(10)
Examine the seal to make sure that:
-
there is a full strip of sealant along the trailing edge of the panel opening
-
there are no bubbles or spaces in the sealant
-no parts of the seal are loose.
(11)
If there are bubbles or spaces in the sealant, or the seal does not make a full strip, or the seal is loose do as follows:
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