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Commercial Airplanes 737 Requirements Bulletin
SPECIAL ATTENTION Number: 737-35-1211 RB Original Issue:
June 17, 2024 ATA System: 3522 2523 SUBJECT: OXYGEN - Passenger Oxygen System - Oxygen Generator and Thermal Pad Inspection and Replacement 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 © 2024 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: June 17, 2024 737-35-1211 RB 1 of 68
3.0
Export Controlled ECCN: 9E991 See page 1 for details Original Issue: June 17, 2024 737-35-1211 RB 2 of 68 REQUIREMENTS BULLETIN 737-35-1211
BLANK PAGE
Table of Contents
1. EFFECTIVITY .
.5
A. Airplanes5
B. Spares Affected10
2. CONCURRENT REQUIREMENTS11
3. COMPLIANCE11
4. APPROVAL14
5. ACCOMPLISHMENT INSTRUCTIONS15
A. General Information15
B. Work Instructions16
FIGURE 1: PASSENGER COMPARTMENT - THERMAL PAD INSPECTION [Group 1-2, Configuration 1]
.24
FIGURE 2: PASSENGER COMPARTMENT - THERMAL PAD INSPECTION [Group 1-2, Configuration 2]
.27
FIGURE 3: PASSENGER COMPARTMENT - PASSENGER SERVICE UNIT OXYGEN GENERATOR
EXPENDED INSPECTION [Group 1-2, Configuration 1]30
FIGURE 4: PASSENGER COMPARTMENT - PASSENGER SERVICE UNIT OXYGEN GENERATOR
EXPENDED INSPECTION [Group 1-2, Configuration 2]33
FIGURE 5: PASSENGER COMPARTMENT - PASSENGER SERVICE UNIT OXYGEN GENERATOR AND
THERMAL PAD REPLACEMENT [Group 1-2, Configuration 1]36
FIGURE 6: PASSENGER COMPARTMENT - PASSENGER SERVICE UNIT OXYGEN GENERATOR AND
THERMAL PAD REPLACEMENT [Group 1-2, Configuration 2]39
FIGURE 7: PASSENGER COMPARTMENT - PASSENGER SERVICE UNIT OXYGEN GENERATOR
THERMAL PAD REPLACEMENT [Group 1-2, Configuration 1]42
FIGURE 8: PASSENGER COMPARTMENT - PASSENGER SERVICE UNIT OXYGEN GENERATOR
THERMAL PAD REPLACEMENT [Group 1-2, Configuration 2]45
FIGURE 9: PASSENGER COMPARTMENT - PASSENGER SERVICE UNIT OXYGEN GENERATOR
REPOSITION [Group 2, Configuration 1]48
FIGURE 10: PASSENGER COMPARTMENT - PASSENGER SERVICE UNIT OXYGEN GENERATOR
REPOSITION [Group 2, Configuration 2]51
FIGURE 11: PASSENGER COMPARTMENT - PASSENGER SERVICE UNIT OXYGEN GENERATOR
REPOSITION AND THERMAL PAD REPLACEMENT [Group 2, Configuration 1]54
FIGURE 12: PASSENGER COMPARTMENT - PASSENGER SERVICE UNIT OXYGEN GENERATOR
REPOSITION AND THERMAL PAD REPLACEMENT [Group 2, Configuration 2]57
FIGURE 13: PASSENGER COMPARTMENT - PASSENGER SERVICE UNIT OXYGEN GENERATOR
POSITION INSPECTION [Group 2, Configuration 1]60
FIGURE 14: PASSENGER COMPARTMENT - PASSENGER SERVICE UNIT OXYGEN GENERATOR
POSITION INSPECTION [Group 2, Configuration 2]63
APPENDIX D: EXPENDED PSU OXYGEN GENERATOR66
APPENDIX E: NOT EXPENDED PSU OXYGEN GENERATOR67
APPENDIX H: SPACING REQUIREMENT OF LESS THAN 0.1-INCH BETWEEN THE PSU OXYGEN
GENERATOR AND THE OXYGEN MASK BOX [Group 2]68
Export Controlled ECCN: 9E991 See page 1 for details Original Issue: June 17, 2024 737-35-1211 RB 3 of 68 REQUIREMENTS BULLETIN 737-35-1211
Export Controlled ECCN: 9E991 See page 1 for details Original Issue: June 17, 2024 737-35-1211 RB 4 of 68 REQUIREMENTS BULLETIN 737-35-1211
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Commercial Airplanes 737 Requirements Bulletin
SPECIAL ATTENTION Number: 737-35-1211 RB Original Issue:
June 17, 2024 ATA System: 3522 2523 SUBJECT: OXYGEN - Passenger Oxygen System - Oxygen Generator and Thermal Pad Inspection and Replacement BOEING RECOMMENDS THAT EACH OPERATOR EXAMINE THIS DOCUMENT IMMEDIATELY. 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 737-700, 737-800, 737-900ER Airplane(s), line number(s) 56, 58, 63, 65, 74, 76, 79, 81, 84, 88, 134, 153, 159, 162, 165, 168, 171, 184, 190, 196, 207, 231, 240, 254, 262-263, 267, 271, 281, 287, 289, 293, 296, 300, 304, 316, 322, 328, 332, 334, 342, 344, 353, 363, 367, 374, 378, 383, 386, 391, 394-395, 398, 402-403, 405, 409, 411, 413, 431, 434-435, 438, 440-441, 443, 453, 462, 473, 488, 503, 509, 527, 531, 553, 559, 575, 579, 581, 591, 606, 608, 612, 615-616, 618, 624, 627, 629, 635, 644-645, 647, 649-650, 655-656, 660, 667, 671, 679, 686, 692, 699, 704, 706, 708, 720, 726, 741, 745, 762, 764, 788, 797, 801, 818, 822, 825, 834, 837, 854, 860, 862-863, 883, 886, 897, 901, 906, 910, 915-916, 928, 930, 937, 939, 941, 957, 966, 970-971, 977, 982, 987, 992, 1001, 1012, 1022, 1062, 1077, 1079, 1099, 1390, 1411, 1423, 1425, 1440, 1456, 1475, 1506, 1509, 1516, 1540, 1542, 1567, 1611, 1622, 1743, 1762, 1779, 1787, 1791, 1813, 1821, 1936, 1994, 2017, 2023, 2035, 2048, 2065, 2205, 2467, 2474, 2487, 2490, 2503, 2514, 2516, 2523, 2528, 2533, 2541, 2547, 2553, 2565, 2569, 2577, 2579, 2594, 2598, 2602, 2614, 2619, 2645, 2651, 2655, 2657, 2676, 2680, 2707, 2713, 2718, 2723, 2737, 2750, 2768, 2774, 2787, 2817, 2838, 2842, 2846, 2870, 2876, 2891, 2899, 2907, 2915-2916, 2935, 2945, 2947, 2954, 2959, 2964, 2971-2972, 2982, 2990, 2995-2996, 3004, 3013-3014, 3027-3028, 3035, 3042, 3050, 3056, 3063, 3070, 3077, 3085, 3094, 3102, 3107, 3112, 3118, 3125, 3137-3138, 3149, 3156, 3158, 3169-3170, 3175, 3178, 3185, 3193, 3200, 3209, 3216-3217, 3224, 3228, 3236, 3244, 3252-3253, 3260, 3268, 3276, 3282, 3289, 3291, 3298, 3305, 3307, 3328, 3334, 3340, 3347, 3356, 3361, 3367, 3373, 3380, 3390-3391, 3393, 3396, 3404, 3412, 3417, 3421-3422, 3427, 3434, 3440, 3452, 3456, 3458, 3460, 3462, 3464, 3468, 3475, 3480-3482, 3485-3488, 3490, 3493, 3495, 3497, 3499, 3507, 3509, 3521, 3530, 3532, 3537, 3540, 3545, 3548-3549, 3553-3554, 3557, 3562, 3565, 3567, 3572, 3576-3577, 3581-3583, 3586, 3588, 3591-3592, 3595, 3601, 3608, 3611, 3615, 3618-3620, 3623, 3627, 3630-3631, 3633-3635, 3639-3642, 3645-3646, 3648, 3650-3651, 3653, 3655, 3659-3660, 3663-3671, 3673, 3678, 3680-3681, 3685-3686, 3688-3689, 3693-3695, 3699-3700, 3704, 3706-3707, 3709-3711, 3717-3718, 3720, 3722-3723, 3725, 3729-3733, 3735, 3737-3740, 3745-3746, 3748-3751, 3753, 3756-3758, 3760-3761, 3763-3766, 3768, 3771, 3773, 3775-3777, 3781-3785, 3790, 3793-3794, 3798-3799, 3801-3803, 3805-3810, 3812-3813, 3815-3818, 3820, 3823-3824, 3826-3827, 3831-3833, 3835-3839, 3843-3859, 3861-3862, Export Controlled ECCN: 9E991 See page 1 for details Original Issue: June 17, 2024 737-35-1211 RB 5 of 68
3864-3865, 3867-3868, 3870-3871, 3873, 3875-3878, 3880-3881, 3883, 3885, 3887-3901, 3903-3904, 3907, 3909-3915, 3917-3919, 3921-3925, 3927, 3929-3930, 3933-3937, 3939-3944, 3946-3952, 3954-3957, 3959-3968, 3970-3973, 3975-3982, 3984-3985, 3987-3991, 3993-4001, 4004-4010, 4012-4013, 4015-4016, 4018-4034, 4036-4047, 4049-4054, 4056-4061, 4063-4071, 4073, 4075-4086, 4088-4090, 4092-4094, 4096, 4098, 4100, 4102-4103, 4105-4121, 4123-4129, 4131-4132, 4134-4135, 4137-4140, 4142-4147, 4149-4150, 4153-4165, 4167-4168, 4170-4173, 4175-4176, 4178-4180, 4182-4189, 4191-4203, 4205-4210, 4212-4218, 4221-4226, 4229-4239, 4241-4248, 4250-4255, 4257, 4259-4260, 4262-4266, 4269-4279, 4281, 4283-4292, 4295-4302, 4304-4312, 4314-4320, 4322-4324, 4326-4330, 4332-4333, 4335-4348, 4351-4363, 4365, 4367-4375, 4378-4392, 4394, 4396-4398, 4400-4417, 4419-4425, 4427-4428, 4430-4444, 4446-4448, 4450-4464, 4466-4468, 4470-4480, 4482, 4484-4498, 4500-4518, 4520-4544, 4546, 4548-4560, 4562-4576, 4578-4585, 4587-4592, 4594-4596, 4598-4607, 4610-4619, 4622-4633, 4635-4640, 4642-4652, 4654-4672, 4674-4676, 4678-4701, 4703-4727, 4729, 4731-4767, 4769, 4771-4787, 4789-4805, 4807-4812, 4814-4850, 4852-4854, 4856-4858, 4860-4884, 4886-4897, 4899-4903, 4905, 4907-4921, 4923-4936, 4939, 4941-4952, 4954-4969, 4971-4977, 4979-4984, 4987-4999, 5001-5019, 5021-5024, 5026-5049, 5051-5057, 5059-5071, 5073-5078, 5080-5089, 5091-5097, 5100, 5102, 5104-5105, 5107-5110, 5112-5120, 5122-5123, 5125-5137, 5139-5146, 5148-5157, 5159-5177, 5179-5187, 5189-5215, 5217, 5219-5237, 5239-5247, 5249-5256, 5258-5261, 5263-5271, 5273-5288, 5290-5295, 5297, 5299-5300, 5302-5305, 5307-5315, 5317-5329, 5331-5337, 5339-5340, 5342-5343, 5345-5351, 5353-5355, 5357-5366, 5369-5373, 5375-5392, 5394-5397, 5399-5400, 5403-5427, 5430-5433, 5435-5439, 5441-5443, 5445-5447, 5449-5457, 5459-5473, 5475, 5477, 5479-5509, 5512-5528, 5530-5541, 5543-5561, 5563-5566, 5569-5586, 5588-5601, 5603-5604, 5606-5608, 5610-5617, 5619-5622, 5624, 5626-5628, 5630-5637, 5639-5641, 5643-5649, 5651-5652, 5654-5655, 5657-5659, 5661-5664, 5666-5667, 5669-5676, 5678-5679, 5682, 5684-5704, 5706-5711, 5713-5716, 5718-5723, 5725-5727, 5729-5739, 5741-5764, 5767-5784, 5786-5787, 5789-5795, 5797-5822, 5824-5835, 5837-5850, 5853-5861, 5863-5879, 5881-5901, 5904-5935, 5937-5947, 5949-5962, 5964-5976, 5978-5981, 5983-5991, 5994-6019, 6021-6033, 6035-6047, 6049-6059, 6061-6065, 6067-6073, 6075, 6077-6098, 6100-6103, 6105-6113, 6115-6122, 6124-6131, 6133-6153, 6155-6159, 6161-6186, 6190-6202, 6204-6215, 6217-6221, 6223-6243, 6245-6249, 6251-6271, 6274-6289, 6291-6299, 6301-6307, 6309-6325, 6327, 6329-6343, 6345-6355, 6357-6359, 6361-6371, 6373-6383, 6386-6395, 6397-6407, 6409-6411, 6413-6419, 6421-6429, 6431-6439, 6442-6447, 6449, 6451-6455, 6457-6463, 6465-6467, 6469-6471, 6473-6480, 6482-6483, 6485-6489, 6491, 6493-6498, 6500-6507, 6509-6514, 6516-6520, 6522-6527, 6529-6531, 6533-6534, 6536-6541, 6543-6547, 6549-6554, 6556-6559, 6561, 6563-6568, 6570-6574, 6576-6581, 6583-6588, 6590-6593, 6596-6597, 6599-6602, 6604-6606, 6608-6611, 6613-6615, 6617-6620, 6622, 6624, 6626-6629, 6631-6633, 6635-6638, 6640-6642, 6644-6647, 6649-6651, 6653-6656, 6659-6660, 6662-6664, 6667-6668, 6670-6671, 6673-6676, 6678-6680, 6682-6685, 6688-6689, 6691-6693, 6696-6698, 6700-6703, 6705-6707, 6709-6712, 6714-6716, 6718-6719, 6721, 6723-6725, 6727-6730, 6732-6734, 6736-6739, 6741-6743, 6745-6748, 6751-6752, 6754, 6756-6757, 6759-6761, 6763-6766, 6768-6770, 6772, 6774-6775, 6777-6779, 6781-6782, 6786-6788, 6790-6791, 6793, 6795, 6799-6802, 6804, 6806, 6808-6809, 6811, 6813, 6815, 6817-6818, 6820, 6822-6824, 6826-6827, 6829, 6831-6833, 6836, 6838, 6840, 6842, 6844-6845, 6847, 6849, 6851, 6853-6854, 6856-6858, 6860, 6862-6863, 6865, 6867, 6869-6871, 6873-6874, 6878-6880, 6882-6883, 6885, 6887-6889, 6891-6892, 6894, 6896, 6898, 6900-6903, 6905, 6907, 6910, 6912-6914, 6916, 6919, 6921, 6923-6925, 6927-6928, 6930, 6932-6934, 6936-6937, 6939, 6943, 6945-6948, 6950, 6952, 6954-6955, 6957-6959, 6961-6962, 6964, 6966-6967, 6969, 6971-6972, 6977, 6979, 6981-6982, 6984, 6986-6987, 6989, 6992, 6994, 6996-6997, 6999, 7001-7002, 7007, 7009, 7012, 7014, 7016-7017, 7019, 7021-7022, 7024, 7026, 7029, 7031-7032, 7034, 7036-7037, 7039, 7041, 7046-7047, 7049, 7051-7052, 7054, 7056-7057, 7059, 7061, 7063, 7066-7067, 7069, 7071-7072, 7076, 7078, 7081-7082, 7084, 7086-7087, 7089, 7091-7092, 7094, 7097, 7099, 7101-7102, 7104, 7106-7107, 7109, 7112, 7116-7117, 7119, 7121-7122, 7124, 7126-7127, 7129, 7131, 7134, 7136-7137, 7139, 7141-7142, 7146, 7149, 7151-7152, 7154, 7156-7157, 7159, Export Controlled ECCN: 9E991 See page 1 for details Original Issue: June 17, 2024 737-35-1211 RB 6 of 68 REQUIREMENTS BULLETIN 737-35-1211
7161-7162, 7164, 7167, 7169, 7171-7172, 7174, 7176-7177, 7179, 7182, 7187, 7189, 7191, 7194, 7197, 7199, 7202, 7204, 7206, 7209, 7212, 7214, 7217, 7221, 7224, 7227, 7229, 7232, 7234-7235, 7239, 7242, 7244, 7247, 7249, 7251, 7257, 7259, 7262, 7264, 7266, 7269, 7272, 7274, 7277, 7279-7280, 7284, 7287, 7292, 7294, 7297, 7299, 7302, 7304, 7307, 7309, 7312, 7314, 7317, 7319, 7322, 7327, 7329, 7332, 7334, 7337, 7339, 7342, 7344, 7347, 7349, 7352, 7354, 7357, 7362, 7364, 7367, 7369, 7372, 7374, 7377, 7379, 7382, 7387, 7397, 7402, 7407, 7412, 7417, 7422, 7432, 7437, 7442, 7447, 7452, 7457, 7467, 7472, 7482, 7487, 7492, 7502, 7507, 7512, 7517, 7522, 7527, 7537, 7547, 7552, 7557, 7562, 7572, 7577, 7582, 7592, 7597, 8592 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 737-800/-900ER airplanes with Boeing Sky Interior (BSI) that could have Passenger Service Unit (PSU) Oxygen Generators with Pressure Sensitive Adhesive (PSA) thermal pads installed and require a different compliance time. These airplanes were manufactured during a period when PSA thermal pads were used as an alternate configuration.
- 1 Airplanes that have 12-minute PSU Oxygen Generators installed.1 Airplanes that have 22-minute PSU Oxygen Generators installed.2 737-700/-800/-900ER airplanes with BSI that could have PSU Oxygen Generators with PSA thermal pads installed and require a different compliance time. These airplanes were not manufactured during a period when PSA thermal pads were used as an alternate configuration. The PSUs that used PSA thermal pads may have replaced the delivered PSUs during spares or post-delivery modification.
- 2 Airplanes that have 12-minute PSU Oxygen Generators installed.1 Airplanes that have 22-minute PSU Oxygen Generators installed.2 Airplane Models:
737-700, 737-800, 737-900ER GroupVariable Number 1YC321 - YC380 1YC801 - YC875 1YC877 GroupVariable Number 2YD421 - YD424 2YF201 - YF276 1YF804 - YF805 GroupVariable Number 2YG142 - YG148 1YH101 - YH132 2YH307 Export Controlled ECCN: 9E991 See page 1 for details Original Issue: June 17, 2024 737-35-1211 RB 7 of 68 REQUIREMENTS BULLETIN 737-35-1211
GroupVariable Number 2YH501 - YH542 2YH551 - YH594 2YH601 - YH606 2YH611 - YH620 2YH631 - YH632 2YH636 - YH637 2YH641 2YH681 - YH686 2YH701 - YH755 2YH801 - YH899 2YH901 - YH908 2YH911 - YH915 2YH951 - YH952 1YJ501 - YJ517 1YJ531 - YJ579 1YJ945 1YK921 - YK929 2YN501 2YN591 - YN593 2YN601 - YN606 2YN651 - YN653 2YN661 - YN663 2YN666 - YN667 2YN701 - YN702 1YQ346 - YQ347 2YQ601 - YQ606 2YQ610 - YQ614 2YR001 - YR004 2YR006 - YR098 2YR101 - YR105 2YR111 - YR124 2YR126 - YR144 2YR166 - YR182 GroupVariable Number 2YR186 - YR198 2YR201 - YR215 2YR231 - YR294 2YR296 - YR297 2YR301 - YR334 2YR338 - YR341 2YR361 - YR366 2YR371 - YR373 2YR376 - YR377 2YR381 - YR382 2YR386 - YR388 2YR391 2YR396 - YR399 2YR401 - YR405 2YR411 - YR413 2YR416 - YR418 2YR421 - YR424 2YR426 - YR455 2YR457 - YR499 2YR501 - YR506 2YR511 - YR520 2YR526 - YR544 2YR546 - YR551 2YR556 - YR562 2YR571 - YR582 2YR591 - YR592 2YR601 - YR605 2YR616 - YR658 2YR661 - YR663 2YR671 - YR673 2YR676 - YR678 2YR681 - YR682 2YR701 - YR769 GroupVariable Number 2YR771 - YR799 2YR801 - YR827 2YR831 - YR838 2YR841 - YR899 2YR901 - YR903 2YR931 - YR934 2YR938 - YR944 2YR951 - YR988 2YR990 - YR998 2YS001 - YS002 2YS006 - YS009 2YS031 - YS032 2YS051 - YS073 2YS101 - YS120 2YS126 - YS142 2YS146 - YS160 2YS166 - YS194 2YS196 - YS197 2YS201 - YS209 2YS221 - YS225 2YS231 - YS236 2YS271 - YS288 2YS295 - YS296 2YS301 - YS315 2YS317 - YS348 2YS351 - YS378 2YS381 - YS386 2YS393 - YS395 2YS401 2YS451 2YS456 - YS457 2YS462 - YS465 2YS467 Export Controlled ECCN: 9E991 See page 1 for details Original Issue: June 17, 2024 737-35-1211 RB 8 of 68 REQUIREMENTS BULLETIN 737-35-1211
GroupVariable Number 2YS501 - YS502 2YS506 2YS511 - YS518 2YS531 2YS536 - YS538 2YS541 - YS542 2YS546 2YS551 - YS556 2YS561 - YS578 2YS581 - YS595 2YS601 - YS690 2YS701 - YS716 2YS721 - YS762 2YS771 - YS780 2YS806 - YS810 2YS816 - YS818 2YS823 - YS825 2YS851 - YS863 2YS876 2YS881 - YS884 2YS891 - YS894 2YS896 - YS897 2YS901 - YS909 2YS911 - YS957 2YS961 - YS974 2YS976 - YS977 2YS981 - YS987 2YS991 - YS998 2YT001 - YT004 2YT006 2YT026 - YT027 2YT031 - YT032 2YT036 - YT038 GroupVariable Number 2YT061 - YT068 2YT101 - YT138 2YT176 - YT185 2YT191 2YT196 - YT199 2YT201 2YT206 - YT207 2YT211 - YT213 2YT251 - YT299 2YT301 - YT307 2YT311 - YT312 2YT321 - YT355 2YT371 - YT372 2YT381 2YT391 - YT396 2YT401 - YT403 2YT411 - YT417 2YT427 2YT461 - YT477 2YT491 - YT492 2YT501 - YT521 2YT551 - YT552 2YT556 - YT563 2YT565 2YT571 - YT578 2YT601 - YT606 2YT701 - YT708 2YT723 - YT726 2YT761 - YT781 2YT791 - YT794 2YT796 - YT797 2YT801 - YT804 2YT811 - YT813 GroupVariable Number 2YT826 - YT827 2YT831 - YT832 2YT841 - YT852 2YT856 - YT863 2YT885 - YT887 2YT891 - YT895 2YT901 - YT998 2YU001 - YU060 2YU201 - YU218 2YU301 - YU329 2YU901 - YU931 2YV001 - YV012 2YV021 - YV023 2YV030 - YV034 2YV037 - YV042 2YV045 - YV047 2YV051 - YV059 2YV081 2YV083 - YV084 2YV097 - YV099 2YV101 - YV154 2YV201 - YV203 2YV251 - YV252 2YV256 - YV257 2YV301 - YV312 2YV351 - YV368 2YV381 - YV388 2YV391 - YV394 2YV401 2YV411 - YV413 2YV431 - YV433 2YV441 - YV454 2YV461 - YV464 Export Controlled ECCN: 9E991 See page 1 for details Original Issue: June 17, 2024 737-35-1211 RB 9 of 68 REQUIREMENTS BULLETIN 737-35-1211
GroupVariable Number 2YV467 - YV470 2YV501 - YV512 2YV521 2YV571 - YV586 2YV596 2YV601 - YV605 2YV651 - YV674 1YV676 2YV695 - YV696 2YV701 - YV702 2YV711 2YV722 - YV731 2YV741 - YV794 2YV801 - YV820 2YV831 - YV848 2YV881 - YV883 2YV901 - YV915 2YV923 - YV926 2YV971 - YV983 2YW001 GroupVariable Number 2YW011 - YW099 2YW101 - YW164 2YW201 - YW212 2YW226 - YW240 2YW245 - YW261 2YW263 2YW267 - YW281 2YW283 - YW285 2YW292 - YW299 2YW351 2YW356 - YW358 2YW362 - YW366 2YW371 - YW399 2YW401 - YW430 2YW451 - YW452 2YW471 - YW472 2YW491 - YW498 2YW531 - YW536 2YW541 - YW545 2YW551 - YW580 GroupVariable Number 2YW585 - YW591 2YW595 - YW596 2YW601 2YW610 - YW613 2YW616 - YW623 2YW666 2YW696 - YW699 2YW701 - YW715 2YW726 - YW731 2YW766 - YW775 2YW801 - YW803 2YW811 - YW813 2YW821 2YW831 2YW881 2YW891 - YW893 2YW906 - YW910 2YW916 - YW918 2YW921 - YW925 2YW971 - YW976 B.
Spares Affected Examine your spares supply for the parts or components identified below. If any parts or components are found, refer to Paragraph 3.B., Work Instructions for the recommended action.
Group 1-2, Configuration 1:
Part Number 53010 E71740-00 OR S417T401-44 Export Controlled ECCN: 9E991 See page 1 for details Original Issue: June 17, 2024 737-35-1211 RB 10 of 68 REQUIREMENTS BULLETIN 737-35-1211
Group 1-2, Configuration 2:
Part Number 73667 E72280-00 OR S417T401-63
2.
CONCURRENT REQUIREMENTS None.
3. COMPLIANCE The Federal Aviation Administration (FAA) will possibly release an Airworthiness Directive related to Requirements Bulletin 737-35-1211 RB. The Airworthiness Directive will make the compliance tasks and times given in Requirements Bulletin 737-35-1211 RB mandatory.
Accomplish the required actions, based on the applicable conditions in Tables 1 and 2, 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: Passenger Service Unit (PSU) Oxygen Generator and Thermal Pad Inspection and Replacement Repeat Interval (Not to Exceed) Boeing Recommended Compliance Time ActionCondition -Within 120 days after the Original Issue date of Requirements Bulletin 737- 35-1211 RB.
Do a General Visual Inspection (GVI) of the Passenger Service Unit (PSU) Oxygen Generator to determine retention straps thermal pads configuration.
All Airplanes --No further action is required.
CONDITION 1: ANY PSU
OXYGEN GENERATOR
WITHOUT PRESSURE
SENSITIVE ADHESIVE (PSA) RETENTION
STRAPS THERMAL
PADS FOUND -Before further flight.Do a GVI of the affected PSU Oxygen Generator to determine if expended.
CONDITION 2: ANY PSU
OXYGEN GENERATOR
WITH PSA RETENTION
STRAPS THERMAL
PADS FOUND Export Controlled ECCN: 9E991 See page 1 for details Original Issue: June 17, 2024 737-35-1211 RB 11 of 68 REQUIREMENTS BULLETIN 737-35-1211
Group 1:
Table 1: Passenger Service Unit (PSU) Oxygen Generator and Thermal Pad Inspection and Replacement Repeat Interval (Not to Exceed) Boeing Recommended Compliance Time ActionCondition -Before further flight.Replace with new or serviceable PSU Oxygen Generator and replace PSA retention strap thermal pads with non-PSA retention strap thermal pads. (a) CONDITION 2.1: AFFECT-
ED PSU OXYGEN GEN-
ERATOR EXPENDED -Before further flight.Replace PSA retention strap thermal pads with non-PSA retention strap thermal pads.
CONDITION 2.2: AFFECT-
ED PSU OXYGEN GEN-
ERATOR NOT EXPEND- ED
(a) A serviceable PSU Oxygen Generator is defined as a PSU Oxygen Generator that has not been expended and has not expired (i.e., the PSU Oxygen Generator does not exceed the life limit established for that generator by the manufacturer).
Group 2:
Table 2: Passenger Service Unit (PSU) Oxygen Generator and Thermal Pad Inspection and Replacement Repeat Interval (Not to Exceed) Boeing Recommended Compliance Time ActionCondition -Within 120 days after the Original Issue date of Requirements Bulletin 737- 35-1211 RB.
Do a General Visual Inspection (GVI) of the Passenger Service Unit (PSU) Oxygen Generator to determine retention straps thermal pads configuration.
All Airplanes --No further action is required.
CONDITION 1: ANY PSU
OXYGEN GENERATOR
WITHOUT PRESSURE
SENSITIVE ADHESIVE (PSA) RETENTION
STRAPS THERMAL
PADS FOUND -Within 150 days after the Original Issue date of Requirements Bulletin 737- 35-1211 RB.
Do a GVI of the affected PSU Oxygen Generator to determine if expended and installation migration.
CONDITION 2: ANY PSU
OXYGEN GENERATOR
WITH PSA RETENTION
STRAPS THERMAL
PADS FOUND Export Controlled ECCN: 9E991 See page 1 for details Original Issue: June 17, 2024 737-35-1211 RB 12 of 68 REQUIREMENTS BULLETIN 737-35-1211