Service difficulty report · Track · Boeing 7377H4

Difficulty date
May 12, 2023
Submitted
June 21, 2023
Operation
Air carrier
Aircraft
N429WN
Make and model
Boeing 7377H4
Aircraft serial
33658
Aircraft time
66,602 hours, 39,316 cycles
Part
Track
Part number
UNKNOWN
Condition
Cracked
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

CRACKED TRACK AT ACB BS767 RBL13 WL156.<[01] CRACKED TRACK AT ACB BS767 RBL13 WL156 FOUND TO BE OUT OF LIMITS DUE TO CRACKS ARE NOT PERMITTED PER SRM 53-00-53-1A-2;[02] VERIFIED CORRECTIVE ACTION 1;[03] REMOVED TRACK AT ACB FROM BS 727 TO BS 887 RBL13 WL 156 IAW SRM 51-40-02;[04] RECEIVED NEW TRACK AT ACB BS727 - BS 887 ITEM 654A0004-1350 PO#915408. LOCATED AND DRILLED IAW SRM 51-40-05 AND DWG 146A7500;[05] VERIFIED CORRECTIVE ACTION 4 AND THE MEASUREMENT TABLE. OK TO INSTALL NEW CARGO TIE DOWN TRACK ASSY.;[06] LOCATED AND DRILLED NEW CARGO TRACK SPLICE REPAIR IAW SRM 53-00-53-2R-3 REPAIR 3 PART 4.I TO 4.J FIG.203.<BR>OK TO INSTALL;[07] UPDATE ITEM 6: CARGO TRACK SPLICE REPAIR P/N: 146A7506-20 IAW SRM 53-00-53-2R-3 REPAIR 3 TABLE 201;[08] VERIFIED APPLICABILITY OF SRM 53-00-53-2R-3 REPAIR 3 - CARGO TRACK REPAIR BETWEEN FRAMES.;[09] VERIFIED CORRECTIVE ACTION 8;[10] VERIFIED CORRECTIVE ACTIONS 6 AND 7. OK TO INSTALL.;[11] INSTALLED NEW TRACK AT ACB FROM BS 727 TO BS 887 RBL13 WL156 IAW SRM 51-40-02 ;DWG 146A7500 AND INSTALLED CARGO TRACK SPLICE AT BS747+10 RBL13. IAW SRM 53-00-53-2R-3 REPAIR 3;[12] VERIFIED CORRECTIVE ACTION 11

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