Service difficulty report · Seat Track · Boeing 7377H4

Difficulty date
August 24, 2021
Submitted
September 13, 2021
Operation
Air carrier
Aircraft
N966WN
Make and model
Boeing 7377H4
Aircraft serial
36966
Aircraft time
32,714 hours, 19,999 cycles
Part
Seat Track
Part number
144A53503
Condition
Corroded
Location
Bs 685
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 SEAT TRACK WELL BS 685 +9 TO BS 685 +14 LBL 46 WL 208 ; / [01] REMOVED CORROSION ON BOTTOM OF SEAT TRACK AT BS685+9 TO BS 685+14 LBL46 WL208; CORROSION MEASURES REMOVED 5'X.7'X.046' FOUND OUT LIMITS IAW SRM 53-00-52-1A-1 STEP 4.A(2); CALIBRATED TOOL ID:ATS1737; S/N:NSN; DUE:07/2022; [02] VERIFIED REMOVED CORROSION ON BOTTOM OF SEAT TRACK AT BS685+9 TO BS 685+14 LBL46 WL208; CORROSION MEASURES REMOVED 5'X.7'X.046' FOUND OUT LIMITS IAW SRM 53-00-52-1A-1 STEP 4.A(2); CALIBRATED TOOL ID:ATS1737; S/N:NSN; DUE:07/2022; [03] REMOVED SEAT TRACK WELL BS 540 TO 727B IAW SRM 51-40-02-OG-0; [04] CERTIFY REMOVAL; [05] SEAT TRACK FABRICATED IAW DWG 144A5350; REFER TO ATS BUILD RECORD 526789. PART MARKED PER ATS QCM 4.35.26.; [06] LOCATED AND DRILLED SEAT TRACK AT LBL 45.5; BS 540-727B; WL208 PER DWG 144A5300. OK TO INSTALL.; [07] INSPECTED SEAT TRACK LOCATED AND DRILLED. OKAY TO INSTALL PER DWG 144A5300; [08] INSTALLED SEAT TRACK AT LBL 45.5; BS 540-727B; WL 208 PER DWG 144A5300. ALL FASTENERS STILL REQUIRE TORQUE.; [09] TORQUED FASTENERS IAW AMM 20-50-11-901-801.<BR>ID: ATS2328 S/N: 0219095273.; [10] VERIFIED INSTALLED SEAT TRACK AT LBL 45.5; BS 540-727B; WL 208 PER DWG 144A5300; TORQUED FASTENERS IAW AMM 20-50-11-901-801. <BR>CALIBRATED TOOL ID: ATS2328 S/N: 0219095273.

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