53-52-03
ALL ú ú B01 Page 202 ú Nov 15/94
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
TASK 53-52-03-402-007-B00
3. Install the Lightning Diverter Strip____________________________________
A. Consumable Materials
(1)
A00247 Sealant, BMS5-95
(2)
B00083 Solvent, TT-N-95, Naphtha
B. References
(1)
AMM 51-21-99/701, Decorative Exterior Finishes
(2)
AMM 53-52-00/401, Nose Radome
C. Access
(1) Location Zone
111 Radome
D. Procedure
S 372-008-B00
(1)
Repair the nose radome surface if the protective finish is damaged (AMM 51-21-99/701).
S 102-009-B00
(2)
Clean the mating surfaces of the diverter plate and the diverter strip for a satisfactory electrical bond.
S 392-027-B00
(3)
Seal the nose radome lightning diverter strip attach inserts.
(a)
Clean insert surface with a rag moistened with solvent and let dry.
(b)
Clean radome surface around insert hole with a rag moistened with solvent and let dry.
(c)
Apply BMS5-95 sealant on and around the insert hole in the nose radome and the mating surface of the insert. Completely coat the honeycomb core cells with sealant (Fig. 202).
(d)
Install the insert immediately before the sealant has a chance to set-up.
(e)
Make sure there is squeeze out of the sealant all around the insert on both surfaces of the nose radome. The sealant squeeze out on the aerodynamic surface of the nose radome needs to be flush with the surface. This is to accommodate the fit-up of the diverter strips.
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
53-52-03
ALL ú ú B02 Page 203 ú Jul 12/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
(f) Apply a 0.12 inch fillet seal of BMS5-95 sealant around the flange of the diverter strip insert that is exposed to the interior side of the nose radome.
NOTE: It is important to make sure that the diverter strip
____ attach inserts are completely sealed to prevent moisture from entering into the nose radome honeycomb core.
S 422-010-B00
(4)
Put the diverter strip in position and install the screws.
S 412-011-B00
(5)
Install the nose radome if it was removed.
S 212-012-B00
(6)
Make sure there are no clearances between the diverter strip and the nose radome.
S 862-013-B00
(7)
Do a Lightning Diverter Strips test (Refer to the task that follows).
S 412-014-B00
(8)
Close the nose radome (AMM 53-52-00/401).
TASK 53-52-03-822-015-B00
4. Lightning Diverter Strips - Test
________________________________
A. General
(1) This procedure gives the instructions to do a dc continuity test for all parts that are related to the lightning diverter strips. You must do this test after you install the new diverter strips or when the inspection shows deterioration. The deterioration of the lightning diverter strips can cause radio noise interference.
B. Equipment
(1) Milliohmmeter - 0-30 milliohm range -commercially available
C. References
(1) AMM 53-52-00/401, Nose Radome
D. Access
(1) Location Zone
111 Radome
E. Procedure
S 012-016-B00
(1) Open the nose radome (AMM 53-52-00/401).
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
53-52-03
ALL ú ú B03 Page 204 ú Jul 12/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500
MAINTENANCE MANUAL
APPLY LIBERAL COAT OF BMS 5-95
PER BAC5000 TO ALL FAYING
SURFACES OF THE NYLON INSERT TO
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