Service difficulty report · Strap · Boeing 7377CT

Difficulty date
November 26, 2023
Submitted
December 21, 2023
Operation
Air carrier
Aircraft
N7881A
Make and model
Boeing 7377CT
Aircraft serial
35084
Aircraft time
50,539 hours, 26,785 cycles
Part
Strap
Part number
UNKNOWN
Condition
Corroded
Location
Zn 200 Fus Top
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

MAIN CABIN AFT WET AREA CORROSION AT FLOOR SUPPORT STRAP STA 1016+11' RBL 17'<[01] CLEANED AFT WET AREA AT FLOOR SUPPORT STRAP STA 1016+11' RBL 17'AS PER SOPM REF 20-30-03;[02] CLEANED AFT WET AREA AT FLOOR SUPPORT STRAP STA 1016+11' RBL 17'AS PER SOPM REF 20-30-03. PERFORMED UT THICKNESS INSP ON REWORKED AREA; IAW B737 NDT PART 4 51-00-00 PREC. 3 TOOLS: ZX-6; B/C 174231; CAL. DUE 19-DEC-2023. MIN. THICKNESS 0.049?. EVALUATED REWORKED AREA: ORIGINAL MATERIAL 0.050 REMOVED MATERIAL 0.001 REMAINING MATERIAL 0.049'. REWORKED AREA WITHING LIMITS AS PER REF SRM 51-10-02-0G-0;[03] VERIFIED AND INSPECTED STEP #2.

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