Service difficulty report · Fitting · Boeing 7377H4

Difficulty date
September 10, 2022
Submitted
October 14, 2022
Operation
Air carrier
Aircraft
N205WN
Make and model
Boeing 7377H4
Aircraft serial
34010
Aircraft time
59,229 hours, 35,208 cycles
Part
Fitting
Condition
Corroded
Location
Fwd 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* FWD CABIN STA 344 LBL 59 WL 208.1 FLOOR FITTING IS CORRODED INSIDE FASTENER HOLES. 125015 124-015 / [01] INSTALLED EWIS PROTECTION AT FWD WET AREA;STA 344;LBL 59'';PER B 737-700 AMM 20-60-07.;[02] VERIFIED STEP 1.;[03] REMOVED CORROSION AT FWD WET AREA;STA 344;LBL 59'' WL 208.1 AT FLOOR FITTING;PER B 737-700 SRM 51-10-02-0G-0.;[04] VERIFIED STEP 3.;[05] REMOVED TIEDOWN FITTING AT FWD WET MAIN CABIN STA 344 LBL 59 PER B737-700 SRM 51-40-02-0G-0;[06] AFTER REMOVED CORROSION ON MAIN CABIN TIEDOWN FITTING STA 344 LBL 59 FOUND OUT LIMITS. ORIGINAL MAT. = .075' MAT. REMOVED = .014' MAT. REMAINING = .061'. TOOL USED MICROMETER #165542 DUE DATE 08/19/2023 PER B737-700 SRM 53-10-51-1A-1;[07] TO CORRECT STEP 6 REFERENCE FOR ALLOWABLE DAMAGE B737-700 AMM 53-10-51-1A-1;[08] VERIFIED STEP 5 THRU. 7;[09] CORRECTION TO STEP #7: REFERENCE ON STEP #6 IS CORRECT.;[10] VERIFIED STEP #7.<BR>OK TO APPLY ALODINE AND PRIMER.;[11] TREATED AND PRIMED AREA PER B737-700 SRM 51-20-01-0G-0 AND AMM 51-21-72-370-804.;[12] VERIFIED STEP #11.<BR>OK TO INSTALL NEW TIE DWN FITTING.;[13] INSTALLED NEW TIE DOWN FITTING AT STA 344 AND LBL59 PER B737-700 SRM 51-40-02-0G-0.;[14] VERIFIED STEP #13.;[15] REMOVED EWIS PROTECTION AT FWD WET AREA;STA 344;LBL 59'';PER B 737-700 AMM 20-60-07-913-801.;[16] VERIFIED STEP #15.

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