Service difficulty report · Support · Boeing 7377H4

Difficulty date
May 2, 2023
Submitted
June 1, 2023
Operation
Air carrier
Aircraft
N961WN
Make and model
Boeing 7377H4
Aircraft serial
36962
Aircraft time
37,902 hours, 23,158 cycles
Part
Support
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 FLOOR TO SIDEWALL SUPPORT AT STA 500+15; 500A+12; LBL 24; WL 158.<[01] VERIFIED APPLICABILITY FOR ALLOWABLE DAMAGE LIMITS OF FCB FLOOR TO SIDEWALL SUPPORT LBL 24 WL 158 IAW SRM 53-00-53-1A-2 ALLOWABLE DAMAGE 2.;[02] STEP #1-2 COMPLETED;[03] COMPLETED TABLE MEASUREMENT;[04] UPDATE TABLE MEASUREMENT # 14;[05] VERIFIED CORRECTIVE ACTIONS 1-4 AND MEASUREMENT TABLE.;[06] REMOVED FLOOR TO SIDEWALL SUPPORT AT BS 396 TO BS 500D; LBL 24; WL 158 IAW SRM 51-40-02;[07] ACCOMPLISHED WORK ON CUST SYSTEM ID: TTG8Q00KSSPB;[08] VERIFIED CORRECTIVE ACTION ITEMS 6 AND 7.PART WILL BE REPLACE AS PART OF THE REPAIR PERFORMED ON FAULT TTG8Q00KSSPB.

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