TextPartly OCR
Some pages are OCR from a scan. OCR can misread letters and numbers.
Query with SQL
duckdb -csv -c "SELECT p.page, p.text_source, p.text, f.rights_holder, f.license FROM 'https://openairdocs.org/data/latest/service_document_file_page.parquet' p JOIN 'https://openairdocs.org/data/latest/service_document_file.parquet' f USING (file_sha256) WHERE p.file_sha256 = '646acca96d631b6466273bf8453f73fd0a7875a9ac064391ca61ef58b694e069' ORDER BY p.page"
Prints the whole list as CSV. It reads the release’s Parquet files over HTTPS, so there’s nothing to download first. Install DuckDB to run it.
SELECT p.page, p.text_source, p.text, f.rights_holder, f.license FROM 'https://openairdocs.org/data/latest/service_document_file_page.parquet' p JOIN 'https://openairdocs.org/data/latest/service_document_file.parquet' f USING (file_sha256) WHERE p.file_sha256 = '646acca96d631b6466273bf8453f73fd0a7875a9ac064391ca61ef58b694e069' ORDER BY p.page
Run it at the DuckDB prompt, or in any tool that reads Parquet over HTTPS. More ways to query the release are on Use the data.
Commercial Airplanes 737 Requirements Bulletin ALERT Number: 737-57A1358 RB Original Issue: November 17, 2025 ATA System: 5741 SUBJECT: WINGS - Wing Leading Edge - Engine Fuel Shutoff Valve Access Panel Inspection and Test 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 © 2025 The Boeing Company 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 17, 2025 737-57A1358 RB 1 of 63
4.0
Export Controlled ECCN: 9E991 See page 1 for details Original Issue: November 17, 2025 737-57A1358 RB 2 of 63 REQUIREMENTS BULLETIN 737-57A1358
ALERTALERT
BLANK PAGE
Table of Contents
1. EFFECTIVITY5
A. Airplanes5
B. Spares Affected8
2. CONCURRENT REQUIREMENTS8
3. COMPLIANCE9
4. APPROVAL13
5. ACCOMPLISHMENT INSTRUCTIONS15
A. General Information15
B. Work Instructions16
FIGURE 1: LEFT WING - ENGINE FUEL SHUTOFF VALVE ACCESS PANEL - FORM-IN-PLACE (FIP)
GASKET DETAILED INSPECTION (DET) [Group 1]22
FIGURE 2: RIGHT WING - ENGINE FUEL SHUTOFF VALVE ACCESS PANEL - FORM-IN-PLACE (FIP)
GASKET DETAILED INSPECTION (DET) [Group 1]25
FIGURE 3: LEFT WING - ENGINE FUEL SHUTOFF VALVE ACCESS PANEL - FORM-IN-PLACE (FIP)
GASKET REPLACEMENT [Group 1]28
FIGURE 4: RIGHT WING - ENGINE FUEL SHUTOFF VALVE ACCESS PANEL - FORM-IN-PLACE (FIP)
GASKET REPLACEMENT [Group 1]33
FIGURE 5: LEFT WING - ENGINE FUEL SHUTOFF VALVE ACCESS PANEL - PRE-FORMED SEAL AREA
DETAILED INSPECTION (DET) [Group 2]38
FIGURE 6: RIGHT WING - ENGINE FUEL SHUTOFF VALVE ACCESS PANEL - PRE-FORMED SEAL
AREA DETAILED INSPECTION (DET) [Group 2]41
FIGURE 7: LEFT WING - ENGINE FUEL SHUTOFF VALVE ACCESS PANEL - REMOVEABLE FAY SEAL
REPLACEMENT [Group 2]44
FIGURE 8: RIGHT WING - ENGINE FUEL SHUTOFF VALVE ACCESS PANEL - REMOVEABLE FAY
SEAL REPLACEMENT [Group 2]49
APPENDIX A: LEFT WING - ENGINE FUEL SHUTOFF VALVE ACCESS PANEL - FLUID LEAK TEST . 54 APPENDIX B: RIGHT WING - ENGINE FUEL SHUTOFF VALVE ACCESS PANEL - FLUID LEAK TEST. 59 Export Controlled ECCN: 9E991 See page 1 for details Original Issue: November 17, 2025 737-57A1358 RB 3 of 63 REQUIREMENTS BULLETIN 737-57A1358
ALERTALERT
Export Controlled ECCN: 9E991 See page 1 for details Original Issue: November 17, 2025 737-57A1358 RB 4 of 63 REQUIREMENTS BULLETIN 737-57A1358
ALERTALERT
BLANK PAGE
Commercial Airplanes 737 Requirements Bulletin ALERT Number: 737-57A1358 RB Original Issue: November 17, 2025 ATA System: 5741 SUBJECT: WINGS - Wing Leading Edge - Engine Fuel Shutoff Valve Access Panel Inspection and Test
THIS DOCUMENT IS SENT TO THE OPERATORS OF RECORD OF THE AIRPLANES SHOWN IN 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, 737-8200 Airplane(s), line number(s) 5602, 5668, 5788, 5852, 5902, 5948, 5992, 6034, 6074, 6114, 6154, 6188, 6222, 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, 7265, 7267-7268, 7270-7271, 7273, 7275-7276, 7278, 7281-7283, 7285-7286, 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, 7348, 7350, 7353, 7355-7356, 7358, 7360-7361, 7363, 7365-7366, 7368, 7370, 7373, 7375-7376, 7378, 7380-7381, 7383-7386, 7388-7391, 7393-7396, 7398-7401, 7403-7406, 7409-7411, 7413-7414, 7416, 7418-7421, 7423-7425, 7428-7431, 7433-7436, 7438-7439, 7441, 7443-7446, Export Controlled ECCN: 9E991 See page 1 for details Original Issue: November 17, 2025 737-57A1358 RB 5 of 63
7448-7449, 7451, 7453-7454, 7456, 7458-7461, 7463-7466, 7468-7470, 7473-7476, 7478-7481, 7483-7484, 7486, 7489, 7491, 7494-7495, 7498-7501, 7503-7505, 7509, 7513-7516, 7518, 7520-7521, 7523-7526, 7531, 7533-7536, 7538-7541, 7543, 7548-7551, 7553-7556, 7558-7561, 7563-7566, 7568-7569, 7571, 7573-7574, 7576, 7578-7580, 7583, 7585-7586, 7588-7591, 7593-7594, 7596, 7598-7602, 7604-7609, 7612, 7614, 7617-7618, 7620-7623, 7626-7629, 7632-7637, 7639-7641, 7643, 7648-7650, 7652-7658, 7661, 7663-7665, 7667-7670, 7672-7675, 7678-7679, 7681-7684, 7686, 7688-7689, 7692-7696, 7698-7702, 7704, 7707, 7709-7712, 7717-7719, 7721-7722, 7724-7727, 7729-7737, 7739-7740, 7742-7745, 7747-7749, 7752-7753, 7755-7756, 7758-7759, 7762-7763, 7765-7767, 7769-7773, 7776-7781, 7783, 7785-7791, 7793-7794, 7797, 7799, 7801-7808, 7810-7812, 7814-7816, 7818-7819, 7821-7825, 7827, 7829-7830, 7832, 7835-7837, 7839-7847, 7849-7857, 7861-7864, 7866, 7868-7871, 7873-7874, 7876-7877, 7879-7886, 7889-7904, 7909, 7913, 7915-7918, 7922, 7926-7928, 7937, 7942-7943, 7946-7947, 7951, 7957, 7959-7961, 7965, 7967, 7975-7976, 7982, 7984, 7990, 7992, 7994, 7996, 7998-8000, 8002-8003, 8006, 8009, 8013, 8016, 8019-8021, 8023-8024, 8033-8036, 8042-8044, 8047, 8051-8052, 8054, 8063, 8066, 8071-8073, 8075, 8077, 8087, 8090-8092, 8094, 8099, 8101-8102, 8104-8124, 8126-8133, 8135-8138, 8140-8141, 8143-8146, 8148-8149, 8151-8155, 8157-8176, 8179, 8182, 8184, 8187-8188, 8191-8193, 8195-8196, 8199-8202, 8204, 8207, 8210, 8215-8218, 8222-8224, 8226-8228, 8230-8233, 8236-8238, 8240-8241, 8243, 8245-8247, 8249-8252, 8255-8256, 8258-8259, 8261-8262, 8264-8265, 8267, 8269, 8271-8279, 8281-8283, 8286-8287, 8289-8290, 8292, 8298-8299, 8301, 8304, 8309-8311, 8313-8314, 8316, 8319, 8322-8326, 8329-8330, 8335-8336, 8340-8341, 8343-8346, 8348-8353, 8355-8363, 8365-8371, 8374-8381, 8383-8386, 8388-8389, 8391-8392, 8394-8396, 8398-8399, 8401-8402, 8404-8410, 8412-8419, 8421-8448, 8450-8487, 8489-8494, 8496-8516, 8518-8525, 8527-8529, 8532-8534, 8536, 8541-8542, 8544, 8546, 8580, 8586, 8590, 8593, 8605-8606, 8609-8610, 8612-8614, 8616-8619, 8621-8622, 8624-8633, 8635-8641, 8643-8665, 8667, 8669-8679, 8681-8696, 8699-8718, 8720-8724, 8726-8745, 8747-8748, 8750, 8752-8756, 8758-8770, 8772-8774, 8776-8794, 8797-8806, 8808-8817, 8820-8829, 8831-8833, 8835-8837, 8839-8842, 8844, 8847, 8854, 8856-8857, 8859-8860, 8862-8863, 8865, 8867-8868, 8870, 8873, 8875, 8877-8878, 8880-8881, 8884, 8887, 8890, 8893, 8898, 8900, 8906 in 2 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.
DESCRIPTIONCONFIGURATIONGROUP 737-8, -8200 Airplanes with a Form-in-Place (FiP) gasket.-1 737-9 Airplanes with a pre-formed rubber seal.-2 Airplane Models:
737-8, 737-8200, 737-9 GroupVariable Number 11A001 - 1A002 11A004 - 1A062 11A070 - 1A093 GroupVariable Number 11A098 - 1A099 11A101 - 1A151 11A153 - 1A156 GroupVariable Number 11A158 11A162 11A190 - 1A197 Export Controlled ECCN: 9E991 See page 1 for details Original Issue: November 17, 2025 737-57A1358 RB 6 of 63 REQUIREMENTS BULLETIN 737-57A1358
ALERTALERT
GroupVariable Number 11A201 - 1A209 11A211 - 1A215 11A251 - 1A253 11A301 - 1A332 11A366 11A386 - 1A393 11A401 - 1A414 11A416 11A418 - 1A425 11A427 - 1A428 11A451 - 1A467 11A476 - 1A498 11A501 - 1A502 11A521 - 1A523 11A531 11A541 - 1A547 11A549 11A601 - 1A614 11A631 11A676 - 1A691 11A726 - 1A730 11A741 - 1A743 11A751 - 1A761 11A801 11A851 - 1A880 11A884 11A887 - 1A893 11A895 - 1A897 11A916 - 1A921 11A926 - 1A934 11A943 - 1A945 11A951 - 1A964 11A967 - 1A969 GroupVariable Number 11B001 - 1B032 11B035 - 1B039 11B041 - 1B047 11B071 - 1B072 11B101 - 1B142 11B156 - 1B167 11B201 - 1B214 11B216 - 1B217 11B251 - 1B266 11B326 - 1B329 11B366 - 1B370 11B376 - 1B381 11B385 - 1B393 11B396 - 1B398 11B401 - 1B402 11B405 11B411 - 1B412 11B436 - 1B437 11B491 - 1B497 11B511 - 1B512 11B516 - 1B517 11B521 - 1B522 11B531 - 1B534 11B540 - 1B541 11B566 - 1B570 11B576 - 1B578 11B601 11B635 - 1B636 11B651 - 1B657 11B701 - 1B704 11B785 - 1B786 11B795 - 1B796 11B801 - 1B815 GroupVariable Number 11B820 - 1B825 11B831 - 1B835 11B930 - 1B934 11B944 11C001 - 1C005 11C007 - 1C009 11C011 11C201 - 1C202 11C221 - 1C224 11C237 - 1C240 11C246 11C256 - 1C267 11C301 - 1C310 11C326 - 1C335 11C401 - 1C404 11C406 - 1C408 11C410 11C414 - 1C420 11C451 11C453 11C501 - 1C517 11C690 - 1C694 11C701 - 1C720 11C826 - 1C827 11C844 - 1C845 11C861 - 1C863 11C886 11C946 - 1C950 21D002 - 1D004 21D051 - 1D079 21D081 21D101 - 1D155 21D162 - 1D179 Export Controlled ECCN: 9E991 See page 1 for details Original Issue: November 17, 2025 737-57A1358 RB 7 of 63 REQUIREMENTS BULLETIN 737-57A1358
ALERTALERT
GroupVariable Number 21D201 - 1D204 21D236 - 1D238 21D251 - 1D253 21D401 - 1D404 21D426 - 1D449 21D455 - 1D464 21D466 - 1D470 21D501 - 1D503 21D521 - 1D524 21D531 - 1D534 21D601 - 1D616 21D618 - 1D619 21D701 21D703 21D751 - 1D767 21D886 - 1D887 11F001 - 1F094 11F101 11F110 - 1F149 11F151 11J001 - 1J002 11J021 - 1J023 11J041 - 1J044 11J066 - 1J067 11J101 - 1J114 11J122 - 1J126 11J132 - 1J133 11J301 - 1J302 GroupVariable Number 11J401 - 1J404 11J585 11J590 - 1J594 11J601 - 1J602 11J606 11J611 11J926 - 1J932 11K001 - 1K003 11K018 11K041 - 1K043 11K045 11K086 11K101 - 1K103 11K301 - 1K309 11K311 - 1K314 11K351 - 1K355 11K380 11K384 11K401 - 1K402 11K426 11K447 - 1K449 11K701 - 1K704 11K726 - 1K727 11K731 - 1K732 11K751 11K976 - 1K979 11L001 11L075 - 1L078 GroupVariable Number 11L084 11L266 - 1L268 11L403 - 1L404 11L451 - 1L466 11L468 - 1L483 11L489 - 1L496 11L498 - 1L499 11L501 - 1L517 11L519 - 1L523 11L525 11L558 - 1L560 11L701 11M003 - 1M005 11M201 11M203 11M205 - 1M207 11M841 - 1M843 11M951 - 1M952 11N209 - 1N230 11N232 - 1N240 11N242 - 1N245 11N247 - 1N251 11N253 - 1N257 11N501 - 1N502 11N701 - 1N702 11N851 -- -- B. Spares Affected None.
2. CONCURRENT REQUIREMENTS None.
Export Controlled ECCN: 9E991 See page 1 for details Original Issue: November 17, 2025 737-57A1358 RB 8 of 63 REQUIREMENTS BULLETIN 737-57A1358
ALERTALERT
3. COMPLIANCE The Federal Aviation Administration (FAA) will possibly release an Airworthiness Directive related to Requirements Bulletin 737-57A1358 RB. The Airworthiness Directive will make the compliance tasks and times given in Requirements Bulletin 737-57A1358 RB mandatory.
Group 1:
Accomplish the required action(s), based on the applicable condition(s) in Table 1 and Table 2 in accordance with Accomplishment Instructions.
Group 2:
Accomplish the required action(s), based on the applicable condition(s) in Table 3 and Table 4 in accordance with Accomplishment Instructions.
When more than one OPTION is given for a CONDITION, do only one of the OPTION numbers. When more than one ACTION is given for a CONDITION or an OPTION, do all of the ACTION numbers for that CONDITION or OPTION.
Group 1:
Table 1: Form-in-Place (FiP) Gasket Detailed Inspection (DET) and Replacement, and Fluid Leak Test of Engine Fuel Shutoff Valve Access Panel at Wing Leading Edge, Left Wing Repeat Interval (Not to Exceed) Boeing Recommended Compliance Time ActionCondition -Within 36 months after the Original Issue date of Requirements Bulletin 737-57A1358 RB.
Do a DET of the FiP gasket at the engine fuel shutoff valve access panel for correct sealant installation. (a) All Airplanes.
-Before further flight.CONDITION 1 (ACTION 1):CONDITION 1:
Replace the FiP gasket.INCORRECT SEALANT INSTALLATION FOUND. CONDITION 1 (ACTION 2):
Do a fluid leak test of the engine fuel shutoff valve access panel for any leak. If any leak is found, do all applicable oncondition corrective action(s) and repeat the leak test until no leak is found.
-Before further flight.Do a fluid leak test of the engine fuel shutoff valve access panel for any leak. If any leak is found, do all applicable oncondition corrective action(s) and repeat the leak test until no leak is found.
CONDITION 2:
CORRECT SEALANT IN- STALLATION FOUND.
Export Controlled ECCN: 9E991 See page 1 for details Original Issue: November 17, 2025 737-57A1358 RB 9 of 63 REQUIREMENTS BULLETIN 737-57A1358
ALERTALERT
Group 1:
Table 1: Form-in-Place (FiP) Gasket Detailed Inspection (DET) and Replacement, and Fluid Leak Test of Engine Fuel Shutoff Valve Access Panel at Wing Leading Edge, Left Wing Repeat Interval (Not to Exceed) Boeing Recommended Compliance Time ActionCondition
(a) Correct sealant installation is defined as:
1. No structure is visible in the FiP gasket area.
2. The sealing surface is smooth.
3. No sealant touch-up is added after the initial sealant application. Touch-up is identified by irregular, smeared, or thicker regions with different texture or appearance from the surrounding sealant, often with visible brush or tool marks.
4. Any small cavity or depression in the sealing surface which are less than or equal to 1/4 inch in width, and 1/8 inch in length, are permitted if the cavities or depressions do not extend across the full width of the sealed surface and maintain a minimum sealing surface of 1/4 inch.
5. The outboard aft corner of the gasket area is sealed and attached to the flange of the main track rib assembly and attach strap.
6. The gasket is adhered to the underlying surface and is not loose.
Group 1:
Table 2: Form-in-Place (FiP) Gasket Detailed Inspection (DET) and Replacement, and Fluid Leak Test of Engine Fuel Shutoff Valve Access Panel at Wing Leading Edge, Right Wing Repeat Interval (Not to Exceed) Boeing Recommended Compliance Time ActionCondition -Within 36 months after the Original Issue date of Requirements Bulletin 737-57A1358 RB.
Do a DET of the FiP gasket at the engine fuel shutoff valve access panel for correct sealant installation. (a) All Airplanes.
-Before further flight.CONDITION 3 (ACTION 1):CONDITION 3:
Replace the FiP gasket.INCORRECT SEALANT INSTALLATION FOUND. CONDITION 3 (ACTION 2):
Do a fluid leak test of the engine fuel shutoff valve access panel for any leak. If any leak is found, do all applicable oncondition corrective action(s) and repeat the leak test until no leak is found.
Export Controlled ECCN: 9E991 See page 1 for details Original Issue: November 17, 2025 737-57A1358 RB 10 of 63 REQUIREMENTS BULLETIN 737-57A1358
ALERTALERT
Group 1:
Table 2: Form-in-Place (FiP) Gasket Detailed Inspection (DET) and Replacement, and Fluid Leak Test of Engine Fuel Shutoff Valve Access Panel at Wing Leading Edge, Right Wing Repeat Interval (Not to Exceed) Boeing Recommended Compliance Time ActionCondition -Before further flight.Do a fluid leak test of the engine fuel shutoff valve access panel for any leak. If any leak is found, do all applicable oncondition corrective action(s) and repeat the leak test until no leak is found.
CONDITION 4:
CORRECT SEALANT IN- STALLATION FOUND.
(a) Correct sealant installation is defined as:
1. No structure is visible in the FiP gasket area.
2. The sealing surface is smooth.
3. No sealant touch-up is added after the initial sealant application. Touch-up is identified by irregular, smeared, or thicker regions with different texture or appearance from the surrounding sealant, often with visible brush or tool marks.
4. Any small cavity or depression in the sealing surface which are less than or equal to 1/4 inch in width, and 1/8 inch in length, are permitted if the cavities or depressions do not extend across the full width of the sealed surface and maintain a minimum sealing surface of 1/4 inch.
5. The outboard aft corner of the gasket area is sealed and attached to the flange of the main track rib assembly and attach strap.
6. The gasket is adhered to the underlying surface and is not loose.
Group 2:
Table 3: Pre-Formed Seal Area Detailed Inspection (DET) and Repair, and Fluid Leak Test of Engine Fuel Shutoff Valve Access Panel at Wing Leading Edge, Left Wing Repeat Interval (Not to Exceed) Boeing Recommended Compliance Time ActionCondition -Within 36 months after the Original Issue date of Requirements Bulletin 737-57A1358 RB.
Do a DET at the engine fuel shutoff valve access panel for any damage on the preformed seal. (a) All Airplanes.
Export Controlled ECCN: 9E991 See page 1 for details Original Issue: November 17, 2025 737-57A1358 RB 11 of 63 REQUIREMENTS BULLETIN 737-57A1358
ALERTALERT
Group 2:
Table 3: Pre-Formed Seal Area Detailed Inspection (DET) and Repair, and Fluid Leak Test of Engine Fuel Shutoff Valve Access Panel at Wing Leading Edge, Left Wing Repeat Interval (Not to Exceed) Boeing Recommended Compliance Time ActionCondition -Before further flight.CONDITION 5 (ACTION 1):CONDITION 5:
Contact The Boeing Company for repair instructions and do the repair.
PRE-FORMED SEAL DAMAGE FOUND.
CONDITION 5 (ACTION 2):
Do a fluid leak test of the engine fuel shutoff valve access panel for any leak. If any leak is found, do all applicable oncondition corrective action(s) and repeat the leak test until no leak is found.
-Before further flight.Do a fluid leak test of the engine fuel shutoff valve access panel for any leak. If any leak is found, replace the existing sealant installation with a removable fay seal and repeat the leak test until no leak is found.
CONDITION 6:
NO PRE-FORMED SEAL DAMAGE FOUND.
(a) Pre-formed seal damage is defined as:
1. Tears or rips which extend across the full width of the pre-formed seal.
2. Partial or complete disbonding of the pre-formed seal from the access door.
Group 2:
Table 4: Pre-Formed Seal Area Detailed Inspection (DET) and Repair, and Fluid Leak Test of Engine Fuel Shutoff Valve Access Panel at Wing Leading Edge, Right Wing Repeat Interval (Not to Exceed) Boeing Recommended Compliance Time ActionCondition -Within 36 months after the Original Issue date of Requirements Bulletin 737-57A1358 RB.
Do a DET at the engine fuel shutoff valve access panel for any damage on the preformed seal. (a) All Airplanes.
Export Controlled ECCN: 9E991 See page 1 for details Original Issue: November 17, 2025 737-57A1358 RB 12 of 63 REQUIREMENTS BULLETIN 737-57A1358