Service difficulty report · Sidewall Support · Boeing 7377H4

Difficulty date
July 26, 2023
Submitted
August 22, 2023
Operation
Air carrier
Aircraft
N292WN
Make and model
Boeing 7377H4
Aircraft serial
32538
Aircraft time
51,861 hours, 31,244 cycles
Part
Sidewall Support
Part number
UNKNOWN
Condition
Corroded
Location
Zn 100 Fus Lower
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 BS 727A+2 TO 767 RBL 21 WL 156<[01] VERIFIED STEP 1.<BR><BR>VERIFIED MEASUREMENTS TABLE.;[02] PARTIAL UPDATE ON STEP 2 & 3;[03] COMPLETED STEP 4;[04] PARTIAL UPDATE ON STEP 2;[05] COMPLETED STEP 2;[06] EVALUATED CORROSION ON FLOOR TO SIDEWALL SUPPORT; FOUND TO BE OUT OF LIMITS; REMOVED OLD FLOOR TO SIDEWALL SUPPORT BS BS727+4 TO BS767 RBL 21 WL 156; LOCATED; DRILLED AND INSTALLED NEW FLOOR TO SIDEWALL SUPPORT;[07] ADDING IN REFERENCES FOR CORRECTIVE ACTION 6; ALL ACCOMPLISHED PER SRM 53-00-53-1A-2; DWG 146A7500; SRM 51-40-02-0G-0 AND REFERENCE ACO 5360-E-16462-NG;[08] VERIFIED CORRECTIVE ACTIONS #6 AND #7

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