Service difficulty report · Tie Down · Boeing 7377H4

Difficulty date
April 8, 2023
Submitted
May 18, 2023
Operation
Air carrier
Aircraft
N958WN
Make and model
Boeing 7377H4
Aircraft serial
36673
Aircraft time
38,993 hours, 23,664 cycles
Part
Tie Down
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 - TRACK-TIE DOWN HAS CORROSION RBL 13.75 BS 727D+8; BS 747; BS 767+5; BS 787+5; BS 787+8; BS 787+11; BS 787+15; BS 787+18.5<OUT OF LIMITS IAW SRM 51-10-02 AND SRM 53-00-53-1A-2.;[02] CORROSION ON TRACK IT'S OUT OF LIMITS WIIL BE REPAIRED BY REPLACEMENT OF PART IAW SRM 51-10-02 PAR 9.;[03] CORRECTIVE ACTION FOR STEP 1.<BR>USED TOOL:<BR>ID:NCX000697<BR>S/N:UNKNOWN<BR>DATE:09/2022<BR>DUE:09/2023;[04] VERIFIED CORRECTIVE ACTIONS STEPS 1;2.;[05] REMOVED DAMAGED ACB TRACK FROM BS 727 TO BS 887 RBL 13.75 IAW SRM 51-40-02-0G-0;[06] RECEIVED NEW TRACK ASSY. (2 PIECE KIT) P/N 654A0004-1350 LOT: 1524880-1 PO: 915408/1. PARTIALLY LOCATED AND DRILLED IAW DWG: 146A7500 ID: 0173 REV:- AND SRM 51-30-01-0G-0.;[07] LOCATED AND DRILLED BOTH PIECES OF P/N 654A0004-1350 ASSY. IAW DWG: 146A7500 ID:0173 REV:- AND SRM 51-30-01-0G-0.;[08] VERIFIED CORRECTIVE ACTION STEPS 6 AND 7.;[09] PARTIALLY INSTALLED NEW TRACK ASSY. IAW DWG: 146A7500 ID: 0173 REV:- AND SRM 51-40-02-0G-0.;[10] RECEIVED SPLICE P/N 146A7506-20 PO: 900397/1 <BR>LOT: 1514807-1.;[11] LOCATED AND DRILLED NEW TRACK SPLICE AT BS 747+8' IAW SRM 53-00-53-2R-3. INSTALLED NEW ACB CARGO TIE-DOWN TRACK AND TRACK SPICE AT RBL 13.75 IAW SRM 51-40-02-0G-0; SRM 53-00-53-2R-3; AND DWG 146A7500 ID:0174 REV:

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