Service difficulty report · Intercostal · Boeing 73779P

Difficulty date
December 27, 2022
Submitted
February 8, 2023
Operation
Air carrier
Aircraft
N7855A
Make and model
Boeing 73779P
Aircraft serial
29357
Aircraft time
53,057 hours, 34,450 cycles
Part
Intercostal
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 WEB - INTERCOSTAL LOCATED BTW 767 TO BS 807 RBL 21 WL 156 AFT CARGO COMPARTMENT 2022-707390<[01] ULTRASONIC EQUIPMENT USED P/N: 45MG; S/N: 130066701 AND DUE DATE: 08-APR-23.;[02] REPLACED WEB-INTERCOSTAL AND FASTENERS LOCATED BTW 767 TO BS 807 RBL 21 WL 156 AFT CARGO COMPARTMENT I.A.W B737-700 SRM 51-10-02; SRM 51-40-02 AND DWG# 146A0081 SHEET:28 REV:A. SEE INDIVIDUALS SIGN OFF BELOW;[03] REPLACED WEB-INTERCOSTAL AND FASTENERS LOCATED BTW 767 TO BS 807 RBL 21 WL 156 AFT CARGO COMPARTMENT I.A.W B737-700 SRM 51-10-02; SRM 51-40-02 AND DWG# 146A0081 SHEET:28 REV:A. SEE INDIVIDUALS SIGN OFF BELOW.. RII ITEM

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