Service difficulty report · Tension Tie · Boeing 7377H4

Difficulty date
July 22, 2022
Submitted
August 22, 2022
Operation
Air carrier
Aircraft
N490WN
Make and model
Boeing 7377H4
Aircraft serial
32476
Aircraft time
59,880 hours, 35,571 cycles
Part
Tension Tie
Condition
Corroded
Location
Aft Wet Area
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 TENSION STRAP AT AFT WET AREA RBL3 BS1026; BS1029. / [01] CORROSION ON TENSION STRAP AT AFT WET AREA RBL3 BS1026; BS1029 WITH NEXT DIMENSION L=3.00'' W=0.800 X= 0.010 OT=0.050 RT=0.040 WL 208 P/N 147A5744-1 WITH NEXT TOOL DEPTH GAGE ID:ATS2678 S/N:UNKNOWN DATE:04/2022 DUE:04/2023; FOUND TO BE OUT LIMITS DUE TO NO ALLOWABLE DAMAGE IN SRM; IT WILL BE REPAIRABLE BY REPLACEMENT I.A.W SRM 51-10-02-0G PAR 9C;[02] VERIFIED CORRECTIVE ACTION 1 COMPLETED AND VERIFIED OUT OF LIMITS;[03] REMOVED TENSION STRAP AT BS 989 TO 1029 RBL 11 WL 208 PER SRM 51-10-02.-;[04] RECIVED NEW TENSION STRAP ITEM 147A5744-1 LOT 1482052-6; LOCATED AND DRILLED NEW TENSION STRAP AT BS 989 TO 1029 RBL 11 WL 208; IAW 737-700 SRM 51-40-05-0G-0 DWG 147A5730 OK TO INTALL.;[05] RECIVED NEW TENSION STRAP ITEM 147A5744-1 LOT 1482052-6; LOCATED AND DRILLED NEW TENSION STRAP AT BS 989 TO 1029 RBL 3 WL 208; IAW 737-700 SRM 51-40-05-0G-0 DWG 147A5730 OK TO INTALL;[06] VERIFIED CORRECTIVE ACTION STEP 5. VERIFIED OK TO INSTALL.;[07] INSTALLED NEW TENSION STRAP AT BS 989 TO 1029 RBL 3 WL 208; IAW 737-700 SRM 51-40-02-0G-0; DWG 147A5600.;[08] REJECTION TO ITEM 7 IS AT STEP 1.;[09] CORRECTED ITEM 7: INSTALLED NEW TENSION STRAP AT BS 989 TO 1029 RBL 3 WL 208; IAW 737-700 SRM 51-40-02-0G-0; DWG 147A5600. REV:A; AND STEP 3 IS COMPLETED;[10] ITEM 9; CORRECTED STEP 1;[11] VERIFIED ITEMS 9;10 CORRECTIVE ACTIONS. <BR>VERIFIED STEP 1;[12] VERIFIED MEASUREMENT FIEL

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