Service difficulty report · Support · Boeing 7377BD

Difficulty date
January 25, 2022
Submitted
April 4, 2022
Operation
Air carrier
Aircraft
N7730A
Make and model
Boeing 7377BD
Aircraft serial
33926
Aircraft time
51,354 hours, 27,779 cycles
Part
Support
Condition
Corroded
Location
Aft Cargo
Stage of operation
NR
How discovered
9
Nature of condition
O
Precautionary procedure
O

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

CORROSION ON FLOOR TO SIDEWALL SUPPORT AT AFT CARGO BAY BS727B - BS767 RBL21. / [01] EVALUATED CORROSION ON FLOOR TO SIDEWALL SUPPORT AT ALL LOCATION; FOUND DEEPEST LOCATION TO BE AT BS 727D+10 RBL 21 WL 156; FOUND 0.015 REMOVED FROM ORIG 0.040 IN 1'X1' AREAS FOUND TO BE OUT OF LIMITS PER SRM 53-00-53-1A-2 USING DIAL DEPTH GAUGE ID ATS 2677;[02] VERIFIED EVALUATED CORROSION ON FLOOR TO SIDEWALL SUPPORT AT ALL LOCATION; FOUND DEEPEST LOCATION TO BE AT BS 727D+10 RBL 21 WL 156; FOUND 0.015 REMOVED FROM ORIG 0.040 IN 1'X1' AREAS FOUND TO BE OUT OF LIMITS PER SRM 53-00-53-1A-2 USING DIAL DEPTH GAUGE ID ATS 2677;[03] LOCATED AND DRILLED NEW ACB FLOOR TO SIDEWALL SUPPORT BS 727+4 TO BS 787; RBL 21; WL 160 PER DWG 146A7500 AND SRM 51-40-05-0G-0;[04] VERIFIED CORRECTIVE ACTION 3. <BR><BR>PART TO BE INSTALLED ON TTG8Q004G52E

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