Service difficulty report · Tie Down · Boeing 7377H4

Difficulty date
February 6, 2023
Submitted
March 9, 2023
Operation
Air carrier
Aircraft
N218WN
Make and model
Boeing 7377H4
Aircraft serial
32489
Aircraft time
58,667 hours, 35,279 cycles
Part
Tie Down
Condition
Corroded
Location
Zn 100 Fus Lower
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 CARGO TRACK TIE DOWN AT BOTTOM OF RECESS AS MARKED STA 400+2 RBL 14 BETWEEN S-26L AND S-27L WL 156. 124-024<[01] REMOVED CORROSION AT FWD CARGO TRACK TIE DOWN AT BOTTOM OF RECESS AS MARKED STA 400+2 RBL 14 BETWEEN S-26L AND S-27L WL 156. 124-024 REF SRM 51-10-02-0G-0;[02] VERIFIED STEP # 1;[03] MEASURED REWORKED AREA AT FWD CARGO TRACK TIE DOWN AT STA 400+2 RBL 14. MAXIMUM MATERIAL ALLOWED TO REMOVE IS .040 MATERIAL REMOVED .015 PER BOEING 737-700 SRM 53-00-53-1A-2 INSTRUMENT USED ID: 174207 DUE DATE 13-JAN-24;[04] CALIPER USED ID: 175308 DUE DATE 02-DEC-23;[05] VERIFIED STEPS #3 AND #4.<BR>OK TO APPLY ALODINE AND PRIMER.;[06] CORRECTION ON DESCRIPTION - SHOULD BE BETWEEN STR. S-26R AND S-27R;[07] TREATED AND PRIMED REWORKED AREA AT FWD CARGO COMP.TRACK TIE DOWN STA 400 + 2' RBL 14 BETW. STR 26R AND 27R PER B737-700 SRM 51-20-01-0G-0 AND AMM 51-21-72-370-802;[08] VERIFIED STEPS #6 AND #7. TASK COMPLETED.

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