Service difficulty report · None · Boeing 737

Difficulty date
May 9, 2022
Submitted
May 11, 2022
Operation
Air carrier
Aircraft
N37419
Make and model
Boeing 737
Aircraft serial
31666
Aircraft time
44,720 hours, 15,755 cycles
Part
None
Part number
111A1111
Condition
Cracked
Location
Lbl40-45.64
Stage of operation
IN
How discovered
V
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

LEFT WW VERTICAL PRESSURE DECK WEB CRACKED APPROX 1.75" LONG BETWEEN LBL 40.0 AND LBL 45.64 -- SEE PHOTO,S REF NDT PART 6. 51-00-00-23. C/W EDCR. VERIFIED CRACK LENGHT 1.9 INCHES. AND MARKED ENDS OF CRACK. IDT-QC :: NEED TO VERIFY CRACK AND MARK ENDS OF CRACK PHOTO ADDED -- CRACK ENDS MARKED REMOVED SEAT ROWS 20,21,22 ABC REF. AMM 25-22-00 AND 25-22-02 REMOVED FLOOR PANEL 241BF REF. AMM 53-21-00 6,000 FLIGHT CYCLES OR 24 MONTHS AFTER INSTALLATION, WHICHEVER COMES FIRST." REF SRM 57-10-10-2R-4 PERFORMED CATEGORY C REPAIR AND PLACED ON DIP TO "REPLACE REPAIR 4 WITH A PERMANENT REPAIR AS GIVEN IN REPAIR 3 NO MORE THAN TOMC APPROVED TO PLACE ON DIP TO "REPLACE REPAIR 4 WITH A TOMC-APPROVAL FROM SC1ELBYC COMMENT PERMANENT REPAIR AS GIVEN IN REPAIR 3 NO MORE THAN 6,000 FLIGHT CYCLES OR 24 MONTHS AFTER INSTALLATION, WHICHEVER COMES FIRST." REF SRM 57-10-10-2R-4 ACCOMPLISHED HFEC TO VERIFY ENDS OF CRACK. 51-00-00-PROCED 23 STEPS A AND B C/W. STEP D C/W. MATERIAL VERIFIED REPAIR PARTS MADE. OK TO INSTALL REPAIR. STEPS H, I AND J COMPLETE VERIFIED STEPK,L,M OF SRM57-10-10-2R-4 REPAIR 4 PARA 4 WERE COMPLIED WITH NEED QC TO MARK THE ENDS OF THE CRACK FROM THE INSIDE OF THE PERFORMED PROTECTIVE EWIS IN CABIN SIDE AND L/H WHEEL WELL AS MARKED ENDS OF CRACK ON INSIDE OF CABIN. REF BOEING 737 NDT COMPLIED W STEPS A AND B OF SRM 57-10-10-2R-4 REPAIR 4 PARA 4. COMPLIED WITH 737-900ER SRM 57-10-10-2R-4 REPAIR 4 STEP 4C. NO COMPLIED W PARA 4 STEP D STEPS 1-4 OF SRM 57-10-10-2R-4 REPAIR 4 NEE