Service difficulty report · Cargo Track · Boeing 7377H4

Difficulty date
June 30, 2021
Submitted
August 11, 2021
Operation
Air carrier
Aircraft
N750SA
Make and model
Boeing 7377H4
Aircraft serial
29802
Aircraft time
75,691 hours, 44,551 cycles
Part
Cargo Track
Condition
Corroded
Location
Bs 927
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 TRACK AROUND FASTENER HOLE AT AFT CARGO BAY BS927+8 RBL13 WL176. ; / [01] REMOVED CORROSION ON TRACK AROUND FASTENER HOLE AT AFT CARGO BS 927+8 RBL 13 IN L= 2' X W=1' X D=0.25' FROM ORIGINAL THICKNESS OF 0.75' FOUND TO BE OUT OF LIMITS IAW. SRM 53-00-53-1A-2 FIG 103 .ORIGINAL THICKNESS OF 0.75' FOUND TO BE OUT OF LIMITS IAW. SRM 53-00-53-1A-2 FIG 103 ; VERIFIED.; [04] OUT OF LIMITS L= 2' X W=1' X D=0.025; FROM ORIGINAL THICKNESS OF 0.070' FOUND TO BE OUT OF LIMITS IAW. SRM 53-00-53-1A-2 FIG 103; AND BAC 1520-1397; LOCATED AND DRILLED PER DWG-147A7500 SHT-8; LOCATED AND DRILLED NEW TRACK SECTION FROM BS-887-947.5 LBL-3; [06] CERTIFIED THAT CORRECT CORROSION DIMENSION REMOVED ARE L= 2' X W=1' X D=0.025; FROM ORIGINAL THICKNESS OF 0.070' FOUND TO BE OUT OF LIMITS IAW. SRM 53-00-53-1A-2 FIG 103; AND BAC1520-1397 SHEET. LOCATED AND DRILLED NEW TRACK SECTION FROM BS-887-947.5 LBL-3T; AND DRILLED NEW TRACK SECTION FROM BS-887-947.5 RBL-13; [13] CERTIFIED THAT CORRECT CORROSION DIMENSION REMOVED ARE L= 2' X W=1' X D=0.025; FROM ORIGINAL THICKNESS OF 0.070' FOUND TO BE OUT OF LIMITS IAW. SRM 53-00-53-1A-2 FIG 103; AND BAC1520-1397 SHEET. LOCATED AND DRILLED NEW TRACK SECTION FROM BS-887-947.5 RBL-13; [14] RII INSPECTED INSTALLED NEW TRACK SECTION FROM BS 887-BS947.5 RBL 13 ACB IAW DWG 14717500 ID:0010; DWG 147A7500 ID:001; SRM 51-40-02-0G-0;

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