TASK 53-52-03-400-801
3. Install the Lightning Diverter Strip
(Figure 201)
A. References
Reference Title
51-21-99-300-802 Decorative Exterior Paint System Repair (P/B 701)
B. Consumable Materials
Reference Description Specification
A00247 Sealant - Pressure And Environmental -
Chromate Type
BMS5-95
A50250 Sealant - P/S 870 Class B-1/2 Corrosion
Inhibitive Sealant
BMS5-95 Class B-1/2
A50479 Sealant - P/S 870 Class B-2 Corrosion
Inhibitive Sealant
BMS5-95 Class B-2
B00083 Solvent - VM&P Naphthas TT-N-95 Type II, ASTM
D-3735 Type III
C. Location Zones
Zone Area
111 Radome
D. Procedure
SUBTASK 53-52-03-370-001
(1) Repair the nose radome [1] surface if the protective finish is damaged, do this task:
(Decorative Exterior Paint System Repair, TASK 51-21-99-300-802).
SUBTASK 53-52-03-100-003
(2) Clean the mating surfaces of the applicable diverter plate and the applicable diverter strip [3]
for a satisfactory electrical bond.
SUBTASK 53-52-03-390-001
(3) Seal the diverter strip [3] attach inserts.
(a) Clean insert surface with a rag moistened with solvent, B00083 and let dry.
(b) Clean the nose radome [1] surface around insert hole with a rag moistened with solvent,
B00083 and let dry.
(c) Apply sealant, A00247 on and around the insert hole in the nose radome [1] and the
mating surface of the insert. Completely coat the honeycomb core cells with sealant
(Figure 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 round the insert on both surfaces of the
nose radome [1]. The sealant squeeze out on the aerodynamic surface of the nose
radome [1] needs to be flush with the surface. This is to accommodate the fit-up of the
diverter strip [3].
(f) Apply a 0.12 inch fillet seal of sealant, A00247 around the flange of the diverter strip [3]
insert that is exposed to the interior side of the nose radome [1].
NOTE: It is important to make sure that the diverter strip [3] attach inserts are completely
sealed to prevent moisture from entering into the nose radome [1] honeycomb
core.
737-600/700/800/900
AIRCRAFT MAINTENANCE MANUAL
53-52-03
Page 206
D633A101-ILF Feb 15/2018
ECCN 9E991 BOEING PROPRIETARY - Copyright © Unpublished Work - See title page for details
EFFECTIVITY
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