Service difficulty report · Support · Boeing 7377H4

Difficulty date
June 24, 2020
Submitted
August 17, 2021
Operation
Air carrier
Aircraft
N486WN
Make and model
Boeing 7377H4
Aircraft serial
33852
Aircraft time
54,585 hours, 32,477 cycles
Part
Support
Condition
Corroded
Location
Bs 727-767
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 TO SIDEWALL SUPPORT AT ACB BS727 TO BS767 RBL21 WL158. / CORROSION ON FLOOR TO SIDEWALL SUPPORT AT ACB BS 727-BS767 RBL21 WL158 FOUND TO BE OUT OF LIMITS DUE TO MORE THAN 50% MATERIAL LOST IAW SRM 53-00-53-1A-2 ALLOWABLE DAMAGE 2. FABRICATED NEW FLOOR TO SIDEWALL SUPPORT FROM BS727 TO BS767 USING BAC1496-377 7075T62 LOT #1419996-1 IAW SRM 53-00-53-2R-6 REPAIR 6 AND IAW DWG #146A7502. INSTALLED FLOOR TO SIDEWALL SUPPORT FROM BS727- BS767 RBL21 IAW SRM 51-40-02 AND IAW DWG #146A7500 AND IAW SRM 53-00-53-2R-6 REPAIR 6.

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