Service difficulty report · Web · Boeing 7377H4

Difficulty date
March 10, 2023
Submitted
April 18, 2023
Operation
Air carrier
Aircraft
N281WN
Make and model
Boeing 7377H4
Aircraft serial
36528
Aircraft time
51,516 hours, 31,045 cycles
Part
Web
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

AFT CARGO BAY - CORROSION ON THRESHOLD WEB AT RBL 25.75 BS 787+14; BS 787+18; BS 807+1; BS 807+3; BS 807+5; BS 807+7.5; BS 807+10; BS 807+12; BS 807+14; BS 807+16; BS 807+18; BS 827+1; BS 827+3.5.<[01] COMPLETED STEPS 1-13 VERIFIED APPLICABILITY SRM#53-60-15-01-1 AND SRM#53-60-15-1A-1 STEPS 4.2.(B)1 FIG.103 DETAIL G;[02] CORRECTION TO STEP 1-COMPLETED STEPS 1-13 VERIFIED APPLICABILITY SRM#53-60-15-01-1 AND SRM#53-60-15-1A-1 STEPS 4.2.(B)1 FIG.103 DETAIL G USING TOOLING ID:ATS2826 S/N:UNKNOWN DUE:01/31/24;[03] VERIFIED CORRECTIVE ACTION 2 AND STEPS 1-13.;[04] LOCATED AND DRILLED NEW THRESHOLD WEB IAW SRM 51-40-05-0G-0 AND DWG 146A8340.;[05] VERIFIED CORRECTIVE ACTION 4.;[06] THRESHOLD WEB WILL BE INSTALLED WITH THE CUSTOMER CARD NBR: 5360-E-16462-NG (TTG8Q004C8NT).;[07] VERIFIED CORRECTIVE ACTION 6 AND MEASUREMENT TABLE.

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