Boeing 737-600 - Subject 47-21-08 - LIGHTNING SHIELDS; Pageblock 47-21-08;401 - LIGHTNING SHIELDS - REMOVAL;INSTALLATION; Task 47-21-08-000-801 - Upper Lightning Shield Removal; Subtask 47-21-08-860-002

LIGHTNING SHIELDS - REMOVAL/INSTALLATION
1. General
A. This procedure has these tasks:
(1) Upper Lightning Shield Removal
(2) Upper Lightning Shield Installation
ILF 402, 452, 509, 510, 523, 525-528, 568, 569, 576, 577, 581, 583, 585, 588-590, 592-599, 601-603, 606, 607,
610-615, 620, 625-627, 691-699, 833-835, 838, 971, 980-999; ILF 101, 151, 156-199, 301, 304, 308, 310, 314, 315,
317-319, 323, 331-399, 401, 405, 406, 409, 410, 412, 416, 424, 425, 427-429, 451, 501-504, 507, 508, 512-514,
516, 518, 524, 531-533, 535-537, 541, 542, 552-556, 560-562, 567, 571-575, 671, 672, 686, 703, 707-710, 803-813,
821, 822, 831, 832, 836, 837, 841, 842, 851, 852, 854-858, 861-863, 871-874, 947, 948, 968-970, 972, 973 POST
SB 737-47-1003
(3) Lower Lightning Shield Removal
(4) Lower Lightning Shield Installation
B. The two lightning shields are installed on the rear spar in the left wheel well. They give lightning
protection for the Nitrogen Enriched Air Distribution System (NEADS) line.
ILF 402, 451, 452, 503, 504, 509, 510, 514, 523-528, 541, 563, 564, 567-569, 574-577, 581, 583, 585, 588-590,
592-599, 601-603, 606, 607, 610-615, 620, 625-627, 691-699, 832-835, 838, 856, 971-973, 980-999; ILF 101, 151,
156-199, 301, 304, 308, 310, 314, 315, 317-319, 323, 331-399, 401, 405, 406, 409, 410, 412, 416, 424, 425,
427-429, 501, 502, 507, 508, 512, 513, 516, 518, 531-533, 535-537, 542, 552-556, 571-573, 686, 703, 707-710,
803-813, 821, 822, 831, 836, 837, 841, 842, 851, 852, 854, 855, 861-863, 871-874 (POST SB 737-47-1002 OR
POST SB 737-47-1003) AND (POST SB 737-47-1002 OR POST SB 737-47-1003 OR POST SB 737-47-1015); ILF
491-493, 515, 519, 520, 530, 557, 559 POST SB 737-47-1002; ILF 560-562, 671, 672, 857, 858, 947, 948, 968-970
POST SB 737-47-1003
TASK 47-21-08-000-801
2. Upper Lightning Shield Removal
(Figure 401)
A. References
Reference Title
47-00-00-010-801 Nitrogen Generation System (NGS) Precautions (P/B 201)
B. Location Zones
Zone Area
133 Main Landing Gear Wheel Well, Body Station 663.75 to Body Station 727.00 - Left
551 Left Wing - Rear Spar To Landing Gear Support Beam
C. Prepare for the Removal
SUBTASK 47-21-08-860-002
WARNING
DO NOT TOUCH THE COMPONENTS OF THE NITROGEN GENERATION
SYSTEM WHEN THEY ARE HOT. WHEN THE COMPONENTS ARE HOT,
THEY CAN CAUSE INJURIES TO PERSONNEL.
WARNING
DO NOT DISCONNECT THE COMPONENTS OF THE NITROGEN
GENERATION SYSTEM, OR DUCTS WHEN THE SYSTEM IS PRESSURIZED.
THE HOT, HIGH-PRESSURE AIR CAN CAUSE INJURIES TO PERSONNEL,
AND DAMAGE TO EQUIPMENT.
(1) Obey the Nitrogen Generation System (NGS) precautions (TASK 47-00-00-010-801).
737-600/700/800/900
AIRCRAFT MAINTENANCE MANUAL
47-21-08
Page 401
D633A101-ILF Oct 15/2019
ECCN 9E991 BOEING PROPRIETARY - Copyright © Unpublished Work - See title page for details
EFFECTIVITY
ILF 402, 451, 452, 503, 504, 509, 510, 514, 523-528, 541, 563, 564, 567-569, 574-577, 581, 583, 585, 588-590,
592-599, 601-603, 606, 607, 610-615, 620, 625-627, 691-699, 832-835, 838, 856, 971-973, 980-999; ILF 101,
151, 156-199, 301, 304, 308, 310, 314, 315, 317-319, 323, 331-399, 401, 405, 406, 409, 410, 412, 416, 424,
425, 427-429, 501, 502, 507, 508, 512, 513, 516, 518, 531-533, 535-537, 542, 552-556, 571-573, 686, 703,
707-710, 803-813, 821, 822, 831, 836, 837, 841, 842, 851, 852, 854, 855, 861-863, 871-874 (POST SB
737-47-1002 OR POST SB 737-47-1003) AND (POST SB 737-47-1002 OR POST SB 737-47-1003 OR POST
SB 737-47-1015); ILF 491-493, 515, 519, 520, 530, 557, 559 POST SB 737-47-1002; ILF 560-562, 671, 672,
857, 858, 947, 948, 968-970 POST SB 737-47-1003