Service difficulty report · Floorbeam · Boeing 73776N

Difficulty date
July 15, 2021
Submitted
August 10, 2021
Operation
Air carrier
Aircraft
N7723E
Make and model
Boeing 73776N
Aircraft serial
32670
Aircraft time
48,099 hours, 24,239 cycles
Part
Floorbeam
Condition
Corroded
Location
Bs 727d
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

CORROSION ON FLOOR SUPPORT SPLICE AT AFT CARGO BAY BS727D+6 LBL18 TO RBL17 WL156. ; / [01] CORROSION FOUND ON FLOOR SUPPORT SPLICE AT AFT CARGO BAY BS727D+6'' LBL18 TO RBL17;FOUND TO BE OUT OF LIMIT DUE TO NO LIMITS ON SRM PART WILL BE REPAIRED BY REPLACEMENT IAW SRM 51-10-02-0G-0 PAR. 9.C.; [02] CORRECTED MEASUREMENTS; [03] VERIFIED FLOOR SUPPORT SPLICE IN ACB BS 727D+6; LBL 18 TO RBL 17; WL 156 IS OUT OF LIMITS DUE TO NO LIMITS ON SRM; PART WILL BE REPAIRED BY REPLACEMENT IAW SRM 51-10-02-0G-0 PAR. 9. C.; [04] LOCATED AND DRILLED ON FLOOR SUPPORT AT SPLICE AT AFT CARGO BS 727D+6 LBL18 TO RBL 17 WL 156 IAW SRM 51-40-05 AND DWG 146A9401; [05] THE INSTALLATION WILL BE ACCOMPLISHED ON CARD# TTG8Q004AMCD; [06] VERIFIED LOCATE AND DRILL UP OF NEW SPLICE; OK TO INSTALL ON THIS CARD. VERIFIED INSTALLATION WILL NOT BE ACCOMPLISHED ON CARD# TTG8Q004AMCD; SPLICE INSTALLATION MUST BE ADDRESSED ON THIS CARD.; [07] INSTALLED NEW FLOOR SUPPORT SPLICE AT AFT CARGO BAY BS727D+6 LBL18 TO RBL17 WL156 PER BOEING DRAWING#146A7500 REV DATE 7-31-00 REV.LTR T; [08] VERIFIED INSTALL OF NEW FLOOR SUPPORT SPLICE AT AFT CARGO BAY BS727D+6 LBL18 TO RBL17 WL156 PER BOEING DRAWING#146A7500 REV DATE 7-31-00 REV.LTR; [09] VERIFIED ACCOMPLISHMENT OF RII INSTALL STEPS IN STEP 7 PER DWG.; [10] COMPLETE

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