Boeing Alert Requirements Bulletin 767-53A0337 RB: No revision named, part 2 of 2, text

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Page 1OCROpen in PDF

REQUIREMENTS BULLETIN 767-53A0337

ALERT ALERT STA 654 26 LOCATIONS STA 654+1 CION CiON choN FWD RBL

33.0 K STA 654+22 30 LOCATIONS

STA SIA 654+11 654+3 Se da da da ta ta see

RBL FWD

33.0 3103436 FIGURE 4: FUSELAGE - SECTION 43 - AFFECTED CARGO TRACK CROWN FITTINGS REPLACEMENT (SHEET 8 OF 11) Original Issue: October 17, 2025 767-53A0337 RB Export Controlled ECCN: 9E991 See page 1 for details 33 of 65

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REQUIREMENTS BULLETIN 767-53A0337

ALERT ALERT The step numbers shown below agree with the numbers shown in the circle symbols in the figure. The QTY numbers shown below are the number of parts necessary for this figure.

Step Task Name Identification Qty More Data 1 Remove FASTENER 76 (a) Remove FITTING, TRACK 146T5223-6 1 (a) CROWN 2 Apply SEALANT BMS5-95 (a) (b) Install (New) FITTING-TRACK 146T5223Y30 1 (a) CROWN Install (New) FASTENER 76 (a) (c) Remove FASTENER 76 (a) Remove FITTING, TRACK 146T5223-6 1 (a) CROWN 4 Apply SEALANT BMS5-95 (a) (b) Install (New) FITTING-TRACK 146T5223Y30 1 (a) CROWN Install (New) FASTENER 76 (a) (c) 5 Remove FASTENER 54 (a) Remove FITTING, TRACK 146T5223-5 1 (a) CROWN 6 Apply SEALANT BMS5-95 (a) (b) Install (New) FITTING-TRACK 146T5223Y29 1 (a) CROWN Install (New) FASTENER 54 (a) (c) 7 Remove FASTENER 76 (a) Remove FITTING, TRACK 146T5223-6 1 (a) CROWN Apply SEALANT BMS5-95 (a) (b) Install (New) FITTING-TRACK 146T5223Y30 1 (a) CROWN Install (New) FASTENER 76 (a)(c) 9 Remove FASTENER 30 (a) Remove FITTING, TRACK 146T5223-4 1 (a) CROWN FIGURE 4: FUSELAGE - SECTION 43 - AFFECTED CARGO TRACK CROWN FITTINGS REPLACEMENT (SHEET 9 OF 11) Original Issue: October 17, 2025 Export Controlled ECCN: 9E991 767-53A0337 RB See page 1 for details 34 of 65

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REQUIREMENTS BULLETIN 767-53A0337

ALERT ALERT Step Task Name Identification Qty More Data 10 Apply SEALANT BMS5-95 (a) (b) Install (New) FITTING-TRACK 146T5223Y28 1 (a) CROWN Install (New) FASTENER 30 (a) (c)

(a) At all locations where the Cargo Track Crown Fitting is found to not have a material composition consistent with Ti-6AI-4V material, or alloy material could not be determined.

(10) Apply fay surface seal between mating surfaces of the Cargo Track Crown Fitting and aluminum floor panel attachment plate. Refer to SOPM 20-50-19 as an accepted procedure.

FASTENER

DIAMETER (OPTIONAL)

LETTER CODE

HEAD LOCATION D 6F * N = NEAR SIDE F = FAR SIDE (OPTIONAL) C

COUNTERSINK FASTENER

LENGTH/GRIP (OPTIONAL)

EXAMPLE OF FASTENER SYMBOL The codes shown below agree with the letter shown in the upper left corner of the fastener symbols in the figure.

A number in the lower right corner gives the grip length of the fastener. The QTY numbers shown below are the number of fasteners necessary for this figure.

Code Name Identification Qty Hole Dia More Data A BOLT, 100 DEG HEX BACB30NY10K12 24 0.3120 - (a) (b)(c)(d) DR 0.3160 COLLAR BACC30BH10 24 B BOLT, 100 DEG HEX BACB30NY10K14 16 0.3120 - (a) (b) (c) (d) DR 0.3160 COLLAR BACC30BH10 16 C BOLT, 100 DEG HEX BACB30NY10K17 OR 198 0.3120 - (a) (o) (c)(a) (g) DR BACB30NY10K18 OR 0.3160 BACB30NY10K19 WASHER BACW10BP5AP 198 (e) WASHER BACW10BP5AP 396 (T) COLLAR BACC30BH10 198 FIGURE 4: FUSELAGE - SECTION 43 - AFFECTED CARGO TRACK CROWN FITTINGS REPLACEMENT (SHEET 10 OF 11) Original Issue: October 17, 2025 767-53A0337 RB Export Controlled ECCN: 9E991 See page 1 for details 35 of 65

Page 4OCROpen in PDF

REQUIREMENTS BULLETIN 767-53A0337

ALERT ALERT Code Name Identification Qty Hole Dia More Data D BOLT, 100 DEG HEX BACB30NY10K20 74 0.3120 - (a) (b) (c)(d) DR 0.3160 COLLAR BACC30BH10 74

(a) Match drill holes using the removed Cargo Track Crown Fitting in new Cargo Track Crown Fitting. Refer to SOPM 20-10-07 as an accepted procedure.

(b) Countersink fastener holes 100 degrees on the near side of the Cargo Track Crown Fitting.

(d) Install fasteners wet with BMS5-95 sealant. Refer to SOPM 20-50-19, Method 2, as an accepted procedure.

(e) Use Quantity (1) Washer, installed under the collar if installing a BACB3ONY10K18 Bolt.

(T) Use Quantity (2) Washers, installed under the collar if installing a BACB30NY10K19 Bolt.

(g) Do not exceed grip length of 19.

FIGURE 4: FUSELAGE - SECTION 43 - AFFECTED CARGO TRACK CROWN FITTINGS REPLACEMENT (SHEET 11 OF 11) Original Issue: October 17, 2025 767-53A0337 RB Export Controlled ECCN: 9E991 See page 1 for details 36 of 65

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REQUIREMENTS BULLETIN 767-53A0337

ALERT ALERT

STA STA STA 1197 1197 1197 STA SIP SIA STA STA STA STA +88 +110 +132 1219 124 1263 1285 1307 1329 1341 RBL

54.75 -

33.00 - RBL RBL

11.00 - B F FWD

MAIN DECK FLOOR STRUCTURE (VIEW IN THE DOWN DIRECTION) (TYPICAL) A-A 3096124 FIGURE 5: FUSELAGE - SECTION 46 - ALL CARGO TRACK CROWN FITTINGS REPLACEMENT (SHEET 1 OF 10) Original Issue: October 17, 2025 Export Controlled ECCN: 9E991 767-53A0337 RB See page 1 for details 37 of 65

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REQUIREMENTS BULLETIN 767-53A0337

ALERT ALERT

STA STA 1373 1395 RBL

54.75 RBL

33.00 RBL

11.00 FWD

MAIN DECK FLOOR STRUCTURE (VIEW IN THE DOWN DIRECTION) (TYPICAL) B-B 3096125 FIGURE 5: FUSELAGE - SECTION 46 - ALL CARGO TRACK CROWN FITTINGS REPLACEMENT (SHEET 2 OF 10) Original Issue: October 17, 2025 767-53A0337 RB Export Controlled ECCN: 9E991 See page 1 for details 38 of 65

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REQUIREMENTS BULLETIN 767-53A0337

ALERT ALERT STA 1197+88 24 LOCATIONS STA 1197+77 RBL

33.0 STA 1197+110 30 LOCATIONS STA 1197 +121 110Г RBL

33.0 FIGURE 5: FUSELAGE - SECTION 46 - ALL CARGO TRACK CROWN FITTINGS REPLACEMENT (SHEET 3 OF 10) Original Issue: October 17, 2025 767-53A0337 RB Export Controlled ECCN: 9E991 See page 1 for details 39 of 65

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REQUIREMENTS BULLETIN 767-53A0337

ALERT ALERT STA 1197+132 STA 28 LOCATIONS 1197 +121 chance chan chan chan donate a alan apan phoebo RBL

33.0 SIA 1219 26 LOCATIONS STA 1230 RBL

33.0 D 10N D 10N D 10N C 120 C 20 3096127 FIGURE 5: FUSELAGE - SECTION 46 - ALL CARGO TRACK CROWN FITTINGS REPLACEMENT (SHEET 4 OF 10) Original Issue: October 17, 2025 767-53A0337 RB Export Controlled ECCN: 9E991 See page 1 for details 40 of 65

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PYETE LTZL VIS 90 OEZI 8Z1 96Z1 O'ES satan to taned tas 99 10 17

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REQUIREMENTS BULLETIN 767-53A0337

ALERT ALERT STA 22 LOCATIONS 1296 RBL

33.0 G STA 1329 28 LOCATIONS CHOn FWD RBL

33.0 3096129 FIGURE 5: FUSELAGE - SECTION 46 - ALL CARGO TRACK CROWN FITTINGS REPLACEMENT (SHEET 6 OF 10) Original Issue: October 17, 2025 767-53A0337 RB Export Controlled ECCN: 9E991 See page 1 for details 42 of 65

Page 11OCROpen in PDF

REQUIREMENTS BULLETIN 767-53A0337

ALERT ALERT 26 LOCATIONS STA 1362 C 10N RBL

33.0 1373 26 LOCATIONS 1362 STA 10 KBL

33.0 3096130 FIGURE 5: FUSELAGE - SECTION 46 - ALL CARGO TRACK CROWN FITTINGS REPLACEMENT (SHEET 7 OF 10) Original Issue: October 17, 2025 767-53A0337 RB Export Controlled ECCN: 9E991 See page 1 for details 43 of 65

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REQUIREMENTS BULLETIN 767-53A0337

ALERT ALERT SIA 1395 28 LOCATIONS CHON CHON CON CONCHNA/ON 1Ô 12N CHON CHON RBL

33.0 FWD 3096131 The step numbers shown below agree with the numbers shown in the circle symbols in the figure. The QTY numbers shown below are the number of parts necessary for this figure.

Step Task Name Identification Qty More Data 1 Remove FASTENER 54 Remove FITTING, TRACK 146T5223-5 1 CROWN 2 Apply SEALANT BMS5-95 (a) Install (New) FITTING-TRACK 146T5223Y29 1 CROWN Install (New) FASTENER 54 (b) З Remove FASTENER 54 Remove FITTING, TRACK 146T5223-5 1 CROWN 4 Apply SEALANT BMS5-95 (a) Install (New) FITTING-TRACK 146T5223Y29 1 CROWN Install (New) FASTENER 54 (b) FIGURE 5: FUSELAGE - SECTION 46 - ALL CARGO TRACK CROWN FITTINGS REPLACEMENT (SHEET 8 OF 10) Original Issue: October 17, 2025 767-53A0337 RB Export Controlled ECCN: 9E991 See page 1 for details 44 of 65

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