Service difficulty report · Sidewall Support · Boeing 7377BD

Difficulty date
April 18, 2022
Submitted
May 11, 2022
Operation
Air carrier
Aircraft
N7736A
Make and model
Boeing 7377BD
Aircraft serial
35109
Aircraft time
50,096 hours, 25,534 cycles
Part
Sidewall Support
Part number
143A7501184
Condition
Corroded
Location
Fwd Cargo Bay
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 FWD CARGO BAY FLOOR TO SIDEWALL SUPPORT AT RBL 24 BS 400+10; BS 400+18. / [01] UPDATED MEASUREMENTS PARAMETERS.;[02] COMPLETE STEPS 1 - 4;[03] VERIFIED CORRECTIVE ACTION PARTIAL STEPS 1 AND 2.;[04] FABRICATED LOCATED AND DRILLED ON FWD CARGO BAY NEW FLOOR TO SIDEWALL SUPPORT AT RBL 24 BS 396 TO BS 420 MATERIAL USED BAC1496-444#7075T62 LOT#1487676-1 IAW SRM 51-40-05 AND DWG 143A7501 REV:-;APPLY CHEMICAL CONVERSION COATING AND PRIMER.;[05] VERIFIED CORRECTIVE ACTION 4.<BR>OK TO APPLY CHEMICAL CONVERSION COATING AND PRIMER.;[06] APPLIED CHEMICAL CONVERSION COATING AND PRIMER ON FWD CARGO BAY NEW FLOOR TO SIDEWALL SUPPORT AT RBL 24 BS 396 TO BS 420 IAW SRM 51-20-01 AND AMM 51-21-72-370-804;OK TO INSTALL.;[07] VERIFIED CORRECTIVE ACTION STEP 6. VERIFIED OK TO INSTALL.;[08] INSTALLED FLOOR TO SIDEWALL SUPPORT FROM B396 - BS420 IAW SRM 51-40-02 AND DWG 143A7500.;[09] VERIFIED CORRECTIVE ACTION 8.;[10] UPDATED STEPS 1 AND 2.

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