Service difficulty report · Attach Angle · Boeing 7377CT

Difficulty date
May 12, 2021
Submitted
June 21, 2021
Operation
Air carrier
Aircraft
N7828A
Make and model
Boeing 7377CT
Aircraft serial
33697
Aircraft time
60,327 hours, 30,541 cycles
Part
Attach Angle
Condition
Cracked
Location
Bs 663 Bulkhead
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

CUSTOMER REQUEST--RH WHEEL WELL VAPOR BARRIER STA.663 TOP ATTACH ANGLE CRACKER TWO PLACES RBL12 AND RBL48 ; / ACCOMPLISHED REPLACEMENT VAPOR BARRIER WEB UPPER ANGLE AT STA 663 RBL-6 TO RBL-60 REF B737-700 SRM 51-40-02-0G-0;CAP SEALING VERTICAL AND HORIZONTAL LOWER SURFACE FASTENERS REF SOPM 20-50-19;CORRECTION RBL-6 TO RBL- 60;CORRECTION 'INCLUDING VERTICAL ANGLE';FABRICATED VAPOR BARRIER UPPER ANGLE MAT. USED 2024-0.063 PO#1687098 TO HEAT TREATMENT TO T42 REF B737-700 DWG#111A1322 AND BAC #5602 AAR PARTS CONTROL TAG 357011;INSTALLED EWIS PROTECTION AT RT SIDE VAPOR BARRIER STA 663 REF B737-700 AMM 20-60-07-913-801;INSTALLED 100% FASTENERS AT VAPOR BARRIER WEB UPPER ANGLE STA 663 FROM RBL-6 TO RBL-60 REF B737-700 SRM 51-40-02-0G-0;INSTALLED VERTICAL ANGLE AT STA 663 RBL-41 REF B737-700 SRM 51-40-02-0G-0;MIXED TIME PRC0870C080BM654SK LOT#37050810-0060 11:30 05\19\2021 BY SQUEEZE TIME 19:30 05\23\2021;OK TO TREAT & PRIME;PARTIALLY INSTALLED FASTENERS AT LT VAPOR BARRIER WEB UPPER ANGLE STA 663 FROM LBL-6 TO LBL- 60 REF B737-700 SRM 51-40-02-0G-0 AND DWG#111A1322;RII OK TO INSTALL;

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