Service difficulty report · Strap · Boeing 7377H4

Difficulty date
February 13, 2025
Submitted
March 24, 2025
Operation
Air carrier
Aircraft
N289CT
Make and model
Boeing 7377H4
Aircraft serial
36633
Aircraft time
57,118 hours, 34,525 cycles
Part
Strap
Condition
Corroded
Location
Zone 200
Stage of operation
IN
How discovered
V
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 ON STRAP AT MID CABIN BS703 RBL64 WL203. MARKED <[01] REJECTED; AMT REQUEST FOR NDI TO VERIFY REMAINING THICKNESS OF PART. AMT DID PROVIDE STRUCTURE ID/DRAWING AS REQUIRED IAW 737 NDTM PART 4; 51-00-00; PROC 2 STEP 4. C.; [02] EDIT: 'DID NOT PROVIDE STRUCTURE ID/DRAWING'; [03] REMOVED CORROSION ON STRAP AT MID CABIN BS703 RBL64 WL203. BLEND WAS 1'X.6'. BLEND IS OUT OF LIMITS DUE TO NO LIMITS IN THE SRM. TREATED AND PRIMED BLENDED AREAS IAW SOPM 20-41-02. UT INSPECTED BLENDED AREA IAW 737 NDTM PART 4; 51-00-00 PROCEDURE 2. SEE ATTACHED FILE. EQUIP USED: -EPOCH 650 ID: ATS2031 CAL DUE: 07/25; [04] REMOVED CORROSION ON STRAP AT MID CABIN BS703 RBL64 WL203. BLEND WAS 1'X.6'. BLEND IS OUT OF LIMITS DUE TO NO LIMITS IN THE SRM. TREATED AND PRIMED BLENDED AREAS IAW SOPM 20-41-02. UT INSPECTED BLENDED AREA IAW 737 NDTM PART 4; 51-00-00 PROCEDURE 2. SEE ATTACHED FILE. EQUIP USED: -EPOCH 650 ID: ATS2031 CAL DUE: 07/25 REFER TO FAULT TTG8Q00YQ32J WHERE 25-153-00427 WAS ADDED AS A SUBTASK; [05] VERIFIED COMPLETION CORRECTIVE ACTION 4 AND MEASUREMENT TABLE.

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