Service difficulty report · None · Boeing 737

Difficulty date
January 14, 2022
Submitted
April 26, 2022
Operation
Air carrier
Aircraft
N452WN
Make and model
Boeing 737
Aircraft serial
29846
Aircraft time
60,081 hours, 35,724 cycles
Part
None
Condition
Corroded
Location
Cabin Floor
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: CORROSION SPOTS ON AFT CABIN FLOOR STRAP B.S. 1016 TO AFT APB LBL 3' ; / REMOVED SPOTS OF CORROSION AT AFT CABIN FLOOR STRAP STA 1016 TO AFT LBL 3' AS PER SRM 51-10-02-0G-0. EVALUATE DAMAGE. ORIGINAL MATERIAL 0.071' MATERIAL LOST 0.020' MATERIAL REMAINING 0.051' FOUND OUT OF LIMITS AS PER SRM 53-70-51-1A-1 FIG. 103 DET. M. USED CALIPER ID 165957 CALIBRATION DUE: 26-OCT-22. LATE ENTRY: INSTALLED PROTECTION OF EWIS AT STA 1016 TO AFT BETWEEN LBL 20' AND RBL 20' AS PER AMM 20-60-07-913-801. REMOVED STRAP P/N 147A5620-3 AT MAIN CABIN STATION 1016 AS PER SRM 51-40-02-0G-0. LOCATED AND DRILLED NEW FLOOR STRAP AT STA 1016 TO AFT LBL 3' AS PER B-737 700 SRM 51-40-05-0G-0. INSTALLED AFT CABIN FLOOR STRAP AT STA 1016 LBL 3' AS PER B737-700 SRM 51-40-02-0G-0.; [11] VERIFIED INSTALLATION; [12] C/W; [13] EWIS PROTECTION REMOVAL ON CARD TTG8Q001VQGW FOR FOD PROTECTION AND CARD TTG8Q001RHGU FOR AFT WET AREA RESTORATION