Service difficulty report · Web · Boeing 7377BD

Difficulty date
March 4, 2023
Submitted
March 30, 2023
Operation
Air carrier
Aircraft
N556WN
Make and model
Boeing 7377BD
Aircraft serial
33936
Aircraft time
37,398 hours, 21,958 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 26 BS 787+13; BS 787+16; BS 807+1; BS 807+6; BS 807+12; BS 807+16; BS 827+6; BS 827+8.5; BS 827+11; BS 827+13. [TTG8Q00J9A0E]<[01] COMPLETED STEPS 1-10 <BR>VERIFIED APPLICABILTY PER SRM#53-60-15-01-1 FOR IDENTIFICATION AND SRM#53-60-15-1A-1 FOR ALLOWABLE DAMAGE;[02] VERIFIED CORRECTIVE ACTION STEP 1.;[03] RECEIVED; LOCATED AND DRILLED NEW THRESHOLD WEB IAW SRM 51-40-05-0G-0 AND DWG 146A8340.;[04] VERIFIED CORRECTIVE ACTION 3 OK TO INSTALL;[05] CORRECTIVE ACTION 4 OK TO INSTALL RETRACTED;[06] THIS PART WILL BE INSTALLED WITH THE CUSTOMER CARD NBR: 5360-E-16462-NG (TTG8Q0048HEH).;[07] JOB COMPLETE;[08] JOB COMPLETE;[09] CORRECTED CORROSION LEVEL TO LEVEL 2;[10] VERIFIED ACTION 9; VERIFIED MEASUREMENT TABLE

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