Service difficulty report · Support Web · Boeing 7377H4

Difficulty date
June 1, 2021
Submitted
June 16, 2021
Operation
Air carrier
Aircraft
N732SW
Make and model
Boeing 7377H4
Aircraft serial
27864
Aircraft time
74,727 hours, 43,976 cycles
Part
Support Web
Condition
Corroded
Location
Bs 787-796
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 ACB FLOOR-TO-SIDEWALL SUPPORT WEB; BS 787-796; WL 160 ; / BLENDED CORROSION ON ACB FLOOR TO SIDEWALL SUPPORT WEB BS 787-792; RBL 22; WL 160. BLENDED 1'X1'X.020'; ORIGINAL THICKNESS IS .063'. FOUND TO BE OUT OF LIMITS IAW SRM 53-60-15-1A-1.;INSTALLED NEW ACB FLOOR TO SIDEWALL SUPPORT WEB BS 787-792; RBL 22; WL 160 IAW SRM 51-40-02-0G-0; DWG# 146A8320.;LOCATED; DRILLED; DEBURRED NEW ACB FLOOR TO SIDEWALL SUPPORT WEB BS 787-792; RBL 22; WL 160 IAW SRM 51-40-05-0G-0; DWG# 146A8320. OK TO INSTALL;REMOVED SUPPORT WEB BS 787-792; RBL 22; WL 160 IAW SRM 51-40-02-0G-0;VERIFIED LOCATE; DRILL; DEBURR OF NEW ACB FLOOR TO SIDEWALL SUPPORT WEB IAW SRM 51-40-02 AND DWG 146A8320<BR>OK TO INSTALL;VERIFIED SRM REFS AND OUT OF LIMITS STATEMENT; VERIFIED REMOVAL OF PART PER SRM 51-40-02;VERIFIED ALL WORK COMPLETE;VERIFIED INSTALLATION OF NEW ACB FLOOR TO SIDEWALL SUPPORT WEB BS 787-792; RBL 22; WL 160 IAW SRM 51-40-02; DWG# 146A8320.

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