Service difficulty report · Angle · Boeing 7377H4

Difficulty date
March 16, 2022
Submitted
April 20, 2022
Operation
Air carrier
Aircraft
N472WN
Make and model
Boeing 7377H4
Aircraft serial
33831
Aircraft time
58,559 hours, 34,804 cycles
Part
Angle
Condition
Cracked
Location
Center Wing
Stage of operation
IN
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 VAPOR BARRIER UPPER ATTACH ANGLE IS CRACKED AT L.B.L. 8; W.L. 163. / [01] VERIFIED APPLICABILITY OF SRM 57-10-10-2R-5 (REPAIR 5 - WING CENTER SECTION REAR SPAR VAPOR BARRIER ATTACH ANGLE REPAIR - PERMANENT);08] FABRICATED; LOCATED AND DRILLED REPLACEMENT AND SPLICE REPAIR ANGLES IAW SRM 57-10-10-2R-5 REPAIR 5 PART 4.H-K FIG. 202;[09] APPLIED CHEMICAL CONVERSION COATING AND PRIME ON REPLACEMENT; SPLICE ANGLES AND REPAIR AREA IAW SRM 57-10-10-2R-5 REPAIR 5 PART 4.F;G. <BR>OK TO INSTALL.;[10] UPDATED LOT#1398495-2 FOR MATERIAL USED ON ATSHFAB-101-353 2024T0#0.063''CLAD ; HEAT TREATED TO T42 CONDITION.;[11] INSPECTED & VERIFIED CORRECTIVE ACTION ITEMS 7-10. OK TO INSTALL REPAIR PARTS GIVEN.;[12] INSTALLED REPAIR PARTS PER REF SRM 57-10-10-2R-5 REPAIR 5;[13] VERIFIED CORRECTIVE ACTION #12;[14] APPLIED CAP SEAL AT FASTENERS ; FILLET SEAL AROUND THE EDGES OF THE REPAIR AND APPLIED CIC TO THE REPAIR AREA PER SRM 51-80-01-0G-0; SRM 51-20-05-0G-0; SRM 51-20-01-0G-0;[15] VERIFIED CORRECTIVE ACTION 14

More about the Boeing 737-7H4