Service difficulty report · Track · Boeing 7377H4

Difficulty date
January 10, 2023
Submitted
February 7, 2023
Operation
Air carrier
Aircraft
N209WN
Make and model
Boeing 7377H4
Aircraft serial
32484
Aircraft time
59,684 hours, 35,490 cycles
Part
Track
Part number
NOTREPORTED
Part serial
NOTREPORTED
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 AFT CARGO BAY TRACK AT LBL 3 BS 887+19; BS 927+8; BS 927+16.<[01] VERIFIED APLICABILITY SRM 53-70-53-01-2 FOR IDENTIFICATION AND SRM 53-00-53-1A-2 FOR ALLOWABLE DAMAGE;[02] REMOVED CORROSION ON AFT CARGO BAY TRACK LBL3 BS 887+19<BR>MEASUREMENTS:<BR>DIMENSIONS L=1.0' W= 0.400' MAX.MAT.LOSS 0.009'<BR>ORIGINAL THICKNESS 0.040' REMAINING THICKNESS 0.031'<BR>FOUND TO BE OUT OF LIMITS<BR>PER SRM 53-00-53-1A-2 PARA: 4 B (2) FIG.103 DETAIL: G<BR>USED TOOL ID: ATS:2472 DATE DUE: 12/31/23 S/N: UNKNOW;[03] VERIFIED CORRECTIVE ACTION 1 AND 2.<BR>COMPLETED STEPS 1-3;[04] LOCATED AND DRILLED NEW AFT CARGO BAY TRACK AT LBL 3 BS 887 TO 947 P/N 147A7501-13 I.A.W. SRM 51-40-05-0G-0 AND DWG 147A7500.AND OK TO INSTALL.;[05] VERIFIED CORRECTIVE ACTION #4.<BR>VERIFIED OK TO INSTALL REPAIR PARTS.;[06] INSTALLED NEW AFT CARGO BAY TRACK AT LBL 3 BS 887 TO BS 947 P/N 147A7501-13 I.A.W. SRM 51-40-02-0G-0 AND DWG 147A7500.;[07] UPDATED PARTS REQUIREMENT.;[08] VERIFIED CORRECTIVE ACTION #6.;[09] VERIFIED MEASUREMENTS.

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