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Commercial Airplanes 737 Requirements Bulletin ALERT Number: 737-30A1083 RB Original Issue: November 18, 2022 ATA System: 3021 SUBJECT: ICE AND RAIN PROTECTION - Engine Anti-Ice System - P5 Panel Diode Installation and Wiring Change EXPORT CONTROLLED - This technology or software is subject to the U.S. Export Administration Regulations (EAR), (15 C.F.R. Parts 730-774). No authorization from the U.S. Department of Commerce is required for export, re-export, in-country transfer, or access EXCEPT to country group E:1 or E:2 countries/persons per Supp.1 to Part 740 of the EAR.
9E991ECCN:
Copyright © 2022 Boeing.
Unpublished Work. All Rights Reserved.
Treatment of this document and its content is governed by contract with Boeing. Rights to use this document are licensed on a per aircraft basis and such rights may not be transferable. For more information, contact The Boeing Company.
Boeing, the Boeing signature, the Boeing symbol, 707, 717, 727, 737, 747, 757, 767, 777, 787, Dreamliner, BBJ, DC-8, DC-9, DC-10, KC-10, KC-46, KDC-10, MD-10, MD-11, MD-80, MD-88, MD-90, P-8, Poseidon and Boeing liveries are all trademarks owned by The Boeing Company; and no trademark license is granted in connection with this document unless provided in writing by Boeing.
Original Issue: November 18, 2022 737-30A1083 RB 1 of 68
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Export Controlled ECCN: 9E991 Copyright © Unpublished Work - See page 1 for details.
Original Issue: November 18, 2022 737-30A1083 RB 2 of 68 REQUIREMENTS BULLETIN 737-30A1083
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Table of Contents
1 . E F F E C T I V I T Y5
A. Airplanes5
B . S p a r e s A f f e c t e d8
2. CONCURRENT REQUIREMENTS8
3 . C O M P L I A N C E8
4. APPROVAL9
5. ACCOMPLISHMENT INSTRUCTIONS .................................. 1 1 A. General Information ......................................... 1 1 B. Work Instructions ........................................... 1 3 FIGURE 1: BETWEEN P5 PANEL AND AP1800A DISCONNECT BRACKET - WIRE BUNDLE W2112 - WIRING CHANGE [Group 1] .................................. 1 6 FIGURE 2: BETWEEN P5 PANEL AND AP1800A, AP0600C DISCONNECT BRACKETS - WIRE BUNDLE W2218 - WIRING CHANGE [Group 1, 3] ........................... 1 9 FIGURE 3: BETWEEN P5 PANEL AND AP1800A DISCONNECT BRACKET - WIRE BUNDLE W2112 - WIRE ROUTING [Group 1, 3] ................................. 2 2 FIGURE 4: BETWEEN P5 PANEL AND AP1800A, AP0600C DISCONNECT BRACKETS - WIRE BUNDLE W2218 - WIRE ROUTING [Group 1, 3] ............................ 2 6 FIGURE 5: P5 PANEL - WIRE BUNDLE W2510 - WIRE ROUTING ................... 3 1 FIGURE 6: P5 PANEL - WIRE BUNDLE W2510 - WIRING CHANGE [Group 1-4] ........... 3 3 FIGURE 7: BETWEEN P5 PANEL AND AP1800A DISCONNECT BRACKET - WIRE BUNDLE W2112 - WIRING CHANGE [Group 2] .................................. 3 5 FIGURE 8: BETWEEN P5 PANEL AND AP1800A, AP0600C DISCONNECT BRACKETS - WIRE BUNDLE W2218 - WIRING CHANGE [Group 2] ............................ 3 8 FIGURE 9: BETWEEN P5 PANEL AND AP1800A DISCONNECT BRACKET - WIRE BUNDLE W2112 - WIRE ROUTING [Group 2, 4] ................................. 4 1 FIGURE 10: BETWEEN P5 PANEL AND AP1800A, AP0600C DISCONNECT BRACKETS - WIRE BUNDLE W2218 - WIRE ROUTING [Group 2, 4] ............................ 4 5 FIGURE 11: BETWEEN P5 PANEL AND AP1800A DISCONNECT BRACKET - WIRE BUNDLE W2112 - WIRING CHANGE [Group 3] .................................. 5 0 FIGURE 12: BETWEEN P5 PANEL AND AP1800A DISCONNECT BRACKET - WIRE BUNDLE W2112 - WIRING CHANGE [Group 4] .................................. 5 3 FIGURE 13: BETWEEN P5 PANEL AND AP1800A, AP0600C DISCONNECT BRACKETS - WIRE BUNDLE W2218 - WIRING CHANGE [Group 4] ............................ 5 6 APPENDIX A: ENGINE ANTI-ICE DIODE INSTALLATION TEST ...................... 5 9 APPENDIX B: ENGINE ANTI-ICE AND WING ANTI-ICE POWER TEST .................. 6 2 Export Controlled ECCN: 9E991 Copyright © Unpublished Work - See page 1 for details.
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Export Controlled ECCN: 9E991 Copyright © Unpublished Work - See page 1 for details.
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Commercial Airplanes 737 Requirements Bulletin ALERT Number: 737-30A1083 RB Original Issue: November 18, 2022 ATA System: 3021 SUBJECT: ICE AND RAIN PROTECTION - Engine Anti-Ice System - P5 Panel Diode Installation and Wiring Change
THIS DOCUMENT IS SENT TO THE OPERATORS OF RECORD OF THE AIRPLANES SHOWN IN PARAGRAPH 1.A., EFFECTIVITY. IF AN AIRPLANE HAS BEEN LEASED OR SOLD, SEND THIS DOCUMENT TO THE NEW OPERATOR. IF APPLICABLE SPARES HAVE BEEN SOLD, SEND THIS DOCUMENT TO THE NEW OWNER. THIS IS AN ENHANCED REQUIRED FOR COMPLIANCE DOCUMENT. THE BOEING
PROCESSES USED TO CREATE THE SERVICE BULLETIN (SB) AND THE REQUIREMENTS BULLETIN (RB) ENSURE THAT THE INFORMATION BETWEEN "RC START" AND "RC END" IN THE SB ARE IDENTICAL TO THE INFORMATION IN THE SAME SECTIONS (COMPLIANCE, WORK INSTRUCTIONS…) OF THE RB WHICH THE SB REFERS TO AS THE RELATED DOCUMENT.
1. Effectivity A. Airplanes This bulletin is applicable to 737-8, 737-9 Airplane(s), line number(s) 5602, 5668, 5728, 5788, 5852, 5902, 5948, 5992, 6034, 6074, 6114, 6154, 6188, 6222, 6250, 6272, 6290, 6308, 6326, 6344, 6360, 6372, 6384, 6396, 6408, 6420, 6430, 6441, 6448, 6456, 6464, 6472, 6481, 6490, 6499, 6508, 6515, 6521, 6528, 6535, 6542, 6548, 6555, 6562, 6569, 6575, 6582, 6589, 6594, 6598, 6603, 6607, 6612, 6616, 6621, 6625, 6630, 6634, 6639, 6643, 6648, 6652, 6657, 6661, 6666, 6672, 6677, 6681, 6686, 6690, 6695, 6699, 6704, 6708, 6713, 6717, 6722, 6726, 6731, 6735, 6740, 6749, 6753, 6758, 6762, 6767, 6771, 6776, 6780, 6783, 6785, 6789, 6792, 6794, 6796, 6803, 6805, 6807, 6810, 6814, 6816, 6819, 6821, 6825, 6828, 6830, 6834, 6837, 6839, 6841, 6843, 6848, 6850, 6852, 6855, 6859, 6861, 6864, 6866, 6868, 6872, 6875, 6877, 6881, 6884, 6886, 6890, 6893, 6895, 6897, 6899, 6904, 6906, 6908, 6911, 6915, 6917, 6920, 6922, 6926, 6929, 6931, 6935, 6938, 6940, 6942, 6944, 6949, 6951, 6953, 6956, 6960, 6963, 6965, 6968, 6970, 6973, 6975-6976, 6978, 6980, 6983, 6985, 6988, 6990-6991, 6993, 6995, 6998, 7000, 7003, 7005-7006, 7008, 7010, 7013, 7015, 7018, 7020, 7023, 7025, 7027-7028, 7030, 7033, 7035, 7038, 7040, 7042-7043, 7045, 7048, 7050, 7053, 7055, 7060, 7062, 7064-7065, 7068, 7070, 7073, 7075, 7077, 7079-7080, 7083, 7085, 7088, 7090, 7093, 7095-7096, 7098, 7100, 7103, 7105, 7108, 7110-7111, 7113, 7115, 7118, 7120, 7123, 7125, 7128, 7130, 7132-7133, 7135, 7138, 7140, 7143, 7145, 7147-7148, 7150, 7153, 7155, 7158, 7160, 7163, 7165-7166, 7168, 7170, 7173, 7175, 7178, 7180-7181, 7183, 7185-7186, 7188, 7190, 7192-7193, 7195-7196, 7198, 7200-7201, 7203, 7205, 7207-7208, 7210-7211, 7213, 7215-7216, 7218, 7220, 7222-7223, 7225-7226, 7228, 7230-7231, 7233, 7236-7238, 7240-7241, 7245-7246, 7248, 7250, 7252-7253, 7255-7256, 7258, 7260-7261, 7263, 7265, 7267-7268, 7270-7271, 7273, 7275-7276, 7278, 7281-7283, 7286, 7288, 7290-7291, 7293, 7295-7296, 7298, 7300-7301, 7303, 7305-7306, 7308, 7310-7311, 7313, 7315-7316, 7318, 7320-7321, 7323, 7325-7326, 7328, 7330-7331, 7333, 7335-7336, 7338, 7340-7341, 7343, 7345-7346, 7348, 7350-7351, 7353, 7355-7356, 7358, 7360-7361, 7363, 7365-7366, 7368, 7370-7371, 7373, 7375-7376, 7378, 7380-7381, 7383-7386, 7388-7391, 7393-7396, 7398-7401, 7403-7406, 7408-7411, 7413-7416, 7418-7421, 7423-7426, 7428-7431, 7433-7436, 7438-7441, Export Controlled ECCN: 9E991 Copyright © Unpublished Work - See page 1 for details.
Original Issue: November 18, 2022 737-30A1083 RB 5 of 68
7443-7446, 7448-7451, 7453-7454, 7456, 7458-7461, 7463-7466, 7468-7471, 7473-7476, 7478-7481, 7483-7484, 7486, 7488-7491, 7493-7496, 7498-7501, 7503-7506, 7508-7509, 7511, 7513-7516, 7518-7521, 7523-7526, 7528-7531, 7533, 7535-7536, 7538-7541, 7543-7544, 7546, 7548-7551, 7553-7556, 7558, 7560-7561, 7563-7566, 7568-7569, 7571, 7573-7576, 7578-7581, 7583-7586, 7588-7591, 7593-7596, 7598-7602, 7604-7606, 7608-7628, 7630-7641, 7643, 7645-7679, 7681-7704, 7706-7715, 7717-7718, 7720-7732, 7734-7747, 7749-7754, 7756, 7758-7765, 7767-7769, 7771-7776, 7778-7780, 7782-7787, 7789-7795, 7797-7809, 7811-7813, 7815-7822, 7824-7826, 7828-7833, 7835-7842, 7844-7853, 7855-7858, 7860-7861, 7863-7867, 7869-7870, 7873-7889, 7891-7899, 7901-7903, 7913, 7915-7916, 7918-7919, 7923, 7927-7929, 7931, 7934, 7937-7938, 7942-7948, 7951, 7953, 7957, 7959-7961, 7967, 7971-7972, 7975, 7982, 7984, 7990-7991, 7994, 7996, 7998-7999, 8001-8002, 8006, 8009, 8014, 8016, 8020-8021, 8023-8025, 8033-8035, 8038, 8040, 8042-8044, 8051-8052, 8066, 8069, 8072-8073, 8075-8076, 8082, 8087, 8090, 8092, 8099-8100, 8104, 8107, 8109-8122, 8124-8126, 8128-8129, 8131, 8133-8134, 8136, 8138, 8140-8141, 8143-8159, 8162-8165, 8167-8168, 8170, 8172-8173, 8175-8179, 8181-8183, 8185-8190, 8192-8199, 8201-8209 in 4 Group(s). Where the effectivity is presented with hyphens between line numbers, the airplane applicability means "through" and "inclusive", e.g. line numbers 1-9 means line numbers 1 through 9 inclusive.
The Variable Numbers and Group Information for the applicable airplanes is given below.
NOTE: The Variable Number table below includes affected airplanes available as of the issue date of this bulletin. Affected airplane Variable Numbers added to MyBoeingFleet.com after the issue date of this bulletin will be shown using the Maintenance Performance Toolbox EFFECTIVITY search function result.
DESCRIPTIONCONFIGURATIONGROUP Airplanes with different wiring configuration.-1 Airplanes with different wiring configuration.-2 Airplanes with different wiring configuration.-3 Airplanes with different wiring configuration.-4 Airplane Models:
737-8, 737-9 GroupVariable Number 11A001 - 1A062 11A190 - 1A197 11A201 - 1A209 11A211 - 1A215 11A251 - 1A253 11A301 - 1A332 GroupVariable Number 11A401 - 1A414 11A451 - 1A467 11A476 - 1A498 11A501 - 1A502 11A521 - 1A523 11A531 GroupVariable Number 11A541 - 1A547 11A549 11A601 - 1A631 11A676 - 1A699 11A701 - 1A708 11A711 - 1A719 Export Controlled ECCN: 9E991 Copyright © Unpublished Work - See page 1 for details.
Original Issue: November 18, 2022 737-30A1083 RB 6 of 68 REQUIREMENTS BULLETIN 737-30A1083
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GroupVariable Number 11A726 - 1A730 11A741 - 1A743 11A751 - 1A761 11A801 11A851 - 1A880 11A916 - 1A921 11A926 - 1A934 11A943 - 1A945 11A951 - 1A964 11A967 11B001 - 1B020 11B026 - 1B032 11B101 - 1B142 31B201 - 1B214 11B251 - 1B287 11B326 - 1B328 11B366 - 1B370 11B376 - 1B381 11B384 - 1B393 11B396 - 1B397 11B401 - 1B402 11B411 - 1B412 11B436 - 1B437 11B491 - 1B497 11B511 - 1B514 11B516 - 1B517 11B521 - 1B522 11B527 11B531 - 1B534 11B540 - 1B541 11B566 - 1B570 11B576 - 1B578 11B601 GroupVariable Number 11B635 - 1B636 11B651 - 1B666 11B678 - 1B679 11B701 - 1B704 11B785 - 1B786 11B795 - 1B796 11B801 - 1B815 11B820 - 1B825 11B930 - 1B944 11B950 - 1B952 41C001 21C002 - 1C005 21C201 - 1C211 11C221 - 1C224 11C237 - 1C240 11C246 11C256 - 1C263 11C301 - 1C310 11C326 - 1C343 11C370 - 1C380 11C387 - 1C389 11C401 - 1C404 11C406 - 1C408 11C410 - 1C411 11C451 - 1C455 11C501 - 1C517 11C690 - 1C694 11C701 - 1C720 11C826 - 1C827 11C841 - 1C845 11C861 - 1C863 11C886 11C946 - 1C950 GroupVariable Number 11D001 - 1D004 11D051 - 1D066 11D101 - 1D130 11D201 - 1D204 11D236 - 1D238 11D251 - 1D253 11D401 - 1D404 11D426 - 1D438 11D456 11D466 - 1D470 11D501 - 1D503 11D521 11D601 - 1D609 21D701 21J001 - 1J002 11J021 - 1J023 11J041 - 1J044 11J066 - 1J067 11J101 - 1J114 21J122 - 1J126 11J301 - 1J302 11J401 - 1J404 11J585 11J590 - 1J594 11J601 - 1J602 11J606 11J611 11K001 - 1K003 11K016 - 1K018 11K041 - 1K043 11K045 11K086 11K101 - 1K103 Export Controlled ECCN: 9E991 Copyright © Unpublished Work - See page 1 for details.
Original Issue: November 18, 2022 737-30A1083 RB 7 of 68 REQUIREMENTS BULLETIN 737-30A1083
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GroupVariable Number 11K301 - 1K309 11K351 - 1K355 11K380 11K401 - 1K402 11K426 11K701 - 1K703 11K726 - 1K727 GroupVariable Number 11K751 11K976 - 1K980 11L001 11L075 - 1L078 11L101 - 1L105 11L201 - 1L202 11L266 - 1L268 GroupVariable Number 11L301 - 1L302 11L401 - 1L404 11L406 11L451 - 1L466 11L701 -- -- B. Spares Affected None.
2. CONCURRENT REQUIREMENTS None.
3. COMPLIANCE The Federal Aviation Administration (FAA) will possibly release an Airworthiness Directive related to Requirements Bulletin 737-30A1083 RB. The Airworthiness Directive will make the compliance tasks and times given in Requirements Bulletin 737-30A1083 RB mandatory.
Accomplish the required action(s), based on the applicable condition(s) in Table 1 in accordance with Accomplishment Instructions.
Table 1: P5 Panel Diode Installation and Wiring Change Repeat Interval (Not to Exceed) Boeing Recommended Compliance Time ActionCondition -Within 36 months after the Original Issue date of Requirements Bulletin 737- 30A1083 RB or within 36 months after the date of issuance of the original standard certificate of airworthiness or the original export certificate of airworthiness,whichever occurs later.
ACTION 1: In the P5 panel, install four diodes.
All Airplanes -ACTION 2: Change wire bundles W2112, W2218 and W2510 in the P5 panel and between the P5 panel and the AP1800A, AP0600C disconnect brackets.
-ACTION 3: Do the Engine Anti- Ice Diode Installation Test and the Engine Anti-Ice and Wing Anti-Ice Power Test. If any test fails, do applicable corrective action(s) and repeat the test until the test passes.
Export Controlled ECCN: 9E991 Copyright © Unpublished Work - See page 1 for details.
Original Issue: November 18, 2022 737-30A1083 RB 8 of 68 REQUIREMENTS BULLETIN 737-30A1083
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4. APPROVAL This Requirements Bulletin was examined by the Federal Aviation Administration (FAA). The changes specified in this document comply with the applicable regulations and are FAA approved, as well as European Union Aviation Safety Agency (EASA)/Joint Aviation Authorities (JAA) approved for all EASA/JAA approved airplanes listed in this Requirements Bulletin effectivity. This document and its approval were based on the airplane in its original Boeing delivery configuration or as modified by other Boeing changes.
If an airplane has a non-Boeing modification or repair that affects a component or system also affected by this Requirements Bulletin, the operator is responsible for obtaining appropriate regulatory agency approval before incorporating this Requirements Bulletin.
Export Controlled ECCN: 9E991 Copyright © Unpublished Work - See page 1 for details.
Original Issue: November 18, 2022 737-30A1083 RB 9 of 68 REQUIREMENTS BULLETIN 737-30A1083
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Original Issue: November 18, 2022 737-30A1083 RB 10 of 68 REQUIREMENTS BULLETIN 737-30A1083
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5. ACCOMPLISHMENT INSTRUCTIONS A. GENERAL INFORMATION NOTE: 1. This is an Enhanced Required for Compliance document. There will be a separate Service Bulletin (SB) and a separate Requirements Bulletin (RB). If an RB is mandated by an Airworthiness Directive (AD), then all applicable requirements specified in the RB must be done. For the related SB, some locations are marked RC Start and RC End to identify the requirements that are restated from the RB. For the related SB, the areas between RC Start and RC End, including sub-steps and any figures identified between RC Start and RC End, must be done to comply with the AD.
Therefore, an Alternative Method of Compliance (AMOC) is required for any deviations to steps between RC Start and RC End, including substeps and identified figures.
For the related SB, the steps not between RC Start and RC End may be deviated from using accepted methods in accordance with the operator's maintenance or inspection program without obtaining approval of an AMOC; this is provided that the steps between RC Start and RC End, including sub-steps and identified figures, can still be done as specified, and the airplane can be put back in an airworthy condition.
Figures not required for compliance are omitted from the RB.
2. This is an Enhanced Required for Compliance document. The Boeing processes used to create the Service Bulletin (SB) and the Requirements Bulletin (RB) ensure that the information between "RC Start" and "RC End" in the SB are identical to the information in the same sections (Compliance, Work Instructions...) of the RB which the SB refers to as the related document.
3. The compliance times for the actions in WORK INSTRUCTIONS are in Compliance.
4. Unless shown differently, these dimensions and tolerances are used:
– Linear dimensions are in inches – Tolerance on linear dimensions, other than rivet and bolt edge margins, is plus or minus 0.03 inch – Tolerance on rivet and bolt edge margin is plus or minus 0.05 inch – Angular tolerance is plus or minus 2 degrees – Hole dimensions for standard solid rivets and fasteners are in Structural Repair Manual (SRM) Chapter 51 – Torque Values:
— Values for structural fasteners are given in 737 Structural Repair Manual, Chapter 51.
— Values for airframe maintenance tasks are included in Chapter 20 of 737 Aircraft Maintenance Manual (AMM).
— Values for electrical maintenance tasks are included in Chapter 20 of Standard Wiring Practices Manual (SWPM).
— Values for engine maintenance tasks are included in Chapter 70 of 737 Aircraft Maintenance Manual (AMM).
— Non-standard torque values for maintenance tasks are included in the applicable installation step.
Export Controlled ECCN: 9E991 Copyright © Unpublished Work - See page 1 for details.
Original Issue: November 18, 2022 737-30A1083 RB 11 of 68 REQUIREMENTS BULLETIN 737-30A1083
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5. These work instructions refer to procedures included in other Boeing documents.
When the words "refer to" are used and the operator has an accepted alternative procedure, the accepted alternative procedure can be used. When the words "in accordance with" are included in the instruction, the procedure in the Boeing document must be used.
6. Where the work instructions include installation of a kept part, a new or serviceable part with the same part number can be installed as an alternative to the kept part.
7. If it is necessary to remove more parts for access, you can remove those parts. If you can get access without removing identified parts, it is not necessary to remove all of the identified parts. Jacking and shoring limitations must be observed.
8. D648 is equivalent nomenclature to D00648, and D00648 is equivalent nomenclature to D648.
9. D462 is equivalent nomenclature to D00462, and D00462 is equivalent nomenclature to D462.
10. Refer to the SWPM 20-10-11 and SWPM 20-10-12 for the wire installation procedures, and SWPM 20-10-19 for the wire separation requirements, as accepted procedures.
11. The necessary conditions for selection of clamp type and size are included in SWPM 20-10-12. If any wire bundle support clamp specified in this service bulletin does not make a correct fit on the wire bundle, refer to SWPM 20-10-12 as an accepted procedure to select a clamp that fits correctly.
Export Controlled ECCN: 9E991 Copyright © Unpublished Work - See page 1 for details.
Original Issue: November 18, 2022 737-30A1083 RB 12 of 68 REQUIREMENTS BULLETIN 737-30A1083