Service difficulty report · Seat Track · Boeing 737

Difficulty date
October 6, 2021
Submitted
April 29, 2022
Operation
Air carrier
Aircraft
N901WN
Make and model
Boeing 737
Aircraft serial
32545
Aircraft time
46,086 hours, 26,832 cycles
Part
Seat Track
Condition
Corroded
Location
Fuselage
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

SUPPLEMENTAL INFORMATION: A22-27; CABIN SEAT TRACK; STA878-881; LBL45; WL208; CORROSION IN TRACK BASE; MRK'D. ; / [01] REMOVED CORROSION ON SEAT TRACK STA 878 TO 881 LBL45 IAW SRM 51-10-02-0G-0 ITEM 15; [02] EVALUATED ALLOWABLE LIMITS. .042' DEPEST AREA .040' MAXIMUM ALLOW FOUND OUT OF LIMITS IAW SRM 53-00-52-1A-1 FIG 103 TOOL USED AAR 21461 DUE 08/11/22; [03] VERIFIED ITEMS 1; 2; AND MEASURMENT TABLE; [04] STEPS 1-3 C/W; [05] PREPPED AREA FOR CIC <BR><BR>OK TO CIC; [06] OK TO CIC FLOOR STRUCTURE; [07] APPLIED CIC TO L/H FLOOR STRUCTURE IAW B737-800 AMM 51-21-91-620-802; [08] B737-700 AMM 51-21-91-620-802; [09] VERIFIED STEPS 7;8<BR>OK TO CLOSE FLOOR BOARDS; [10] INSTALLED FLOOR PANELS 241VF & 241WF IAW B737-700 AMM 53-21-00-400-801; [11] VERIFIED ITEM 10; [12] REMOVED CORROSION ON SEAT TRACK STA 878 TO 881; EVALUATED ALLOWABLE LIMITS. .042' DEPEST AREA .040' MAXIMUM ALLOW FOUND OUT OF LIMITS IAW SRM 53-00-52-1A-1. REPAIRED SEAT TRACK AT BS 847+10 TO 887 IAW SRM 53-00-52-2R-5 ON FAULT TTG8Q006TDDM; [13] VERIFIED ITEM 12<BR>AUDIT C/W