Service difficulty report · Attach Angle · Boeing 737*

Difficulty date
February 7, 2022
Submitted
March 15, 2022
Operation
Air carrier
Aircraft
N465WN
Make and model
Boeing 737*
Aircraft serial
33829
Aircraft time
59,870 hours, 35,575 cycles
Part
Attach Angle
Condition
Cracked
Stage of operation
UK
How discovered
9
Nature of condition
O
Precautionary procedure
K

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

B.S. 663 LOWER COMPOSITE BULKHEAD UPPER ATTACH ANGLE IS CRACKED AT L.B.L. 8; W.L. 163. / CUT AND REMOVED DAMAGED AREA OF UPPER ATTACH ANGLE AT B.S663 LBL8 WL163 PER SRM 57-10-10-2R-5 FIG 202 SHT4.FABRICATED REPAIR PARTS (1) REPLACEMENT ANGLE FROM 2024T42 0.063 INCH CLAD LOT#1375061 CUSTOMER RO NO ATSHFAB-101-353; (2)SPLICE ANGLE FROM 2024T42 0.071 INCH CLAD LOT#1422411-1 CUSTOMER RO NO ATSHFAB-101-355. PER SRM 57-10-10-2R-5;[08] RECEIVED FROM O.S.S REPLACEMENT ANGLE ATSHFAB-101-353 USING 2024T0#0.063''CLAD; HEAT TREATED TO T42; LOT#1375061-1 JOB#540264.<BR>SPLICE ANGLE ATSHFAB-101-355 USING 2024T0#0.071''CLAD; HEAT TREATED TO T42; LOT# 1422411-1 JOB#542530.;[09] FABRICATED; LOCATED AND DRILLED NEW REPLACEMENT AND SPLICE ANGLES REPAIR AND APPLIED CHEMICAL CONVERSION COATING TO REPAIR PARTS IAW SRM 57-10-10-2R-5 REPAIR 5 PART 4.F; H-K. REPAIR ANGLE AND SPLICE ANGLES LOCATED; DRILLED; TREATED. <BR><BR>OK TO PRIME REPAIR PARTS.;[12] APPLIED PRIMER ON REPAIR PARTS IAW SRM 57-10-10-2R-5 REPAIR 5 PART 4.G.<BR>OK TO INSTALL;[13] VERIFIED CORRECTIVE ACTION ITEM 12. (PRIMER IS APPLIED TO REPAIR PARTS & REWORKED EDGES) OK TO INSTALL [1] & [2] ANGLES GIVEN.;[14] INSTALLED REPAIR PARTS (REPLACEMENT ANGLE AND SPLICE ANGLE) IAW SRM 57-10-10-2R-5 REPAIR 5 PART 4.L (1)-(4)(6)(7);SRM 57-10-10-2R-5 REPAIR 5 PART 4.L(8); N;O