Service difficulty report · Intercostal · Boeing 7377H4

Difficulty date
April 7, 2022
Submitted
May 2, 2022
Operation
Air carrier
Aircraft
N7889A
Make and model
Boeing 7377H4
Aircraft serial
34023
Aircraft time
39,566 hours, 23,543 cycles
Part
Intercostal
Condition
Corroded
Location
Aft Cargo Bay
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 WEB - INTERCOSTAL LOCATED BETWEEN BS847 TO BS867 RBL21 AND WL156 AFT CARGO COMPARTMENT 2022-194844 / [01] TOOL USED: PRECISION RADIUS GAUG; PN: S167C; SN: AE-28526; DUE DATE: 01-FEB-23;[02] TOOL USED: CALIPER; PN: DIGITAL 150; SN: AE-412601; DUE DATE: 31-MAY-22;[03] REPLACED WEB-INTERCOSTAL (SHIELD) AND FASTENERS LOCATED BETWEEN BS847 TO BS867 RBL21 AND WL156 AFT CARGO COMPARTMENT IAW B737-700 SRM 51-40-02 AND DRAWING #146A0081 REV.A SEE INDIVIDUAL SIGN OFF BELOW;[04] REPLACED WEB-INTERCOSTAL (SHIELD) AND FASTENERS LOCATED BETWEEN BS847 TO BS867 RBL21 AND WL156 AFT CARGO COMPARTMENT IAW B737-700 SRM 51-40-02 AND DRAWING #146A0081 REV.A SEE INDIVIDUAL SIGN OFF BELOW; RII

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