Service difficulty report · Stringer · Boeing 73776Q

Difficulty date
April 15, 2023
Submitted
May 31, 2023
Operation
Air carrier
Aircraft
N7815L
Make and model
Boeing 73776Q
Aircraft serial
30288
Aircraft time
60,418 hours, 35,015 cycles
Part
Stringer
Part number
UNKNOWN
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 STRINGER 23R LOCATED BS500B PLUS 5INCH AT FWD CARGO COMPARTMENT 2023-257972<[01] TOOL USED: ULTRASONIC THICKNESS GAUGE; PN:45MG; SN:130064101; DUE DATE: 12-OCT-23;[02] TOOL USED: ULTRASONIC THICKNESS EQUIPMENT; P/N: 45 MG; S/N: 130066401; DUE DATE: 21-SEP-23.;[03] TOOL USED: EDDY CURRENT FLAW DETECTOR; P/N: NORTEC 600 D; S/N: 60009161631; DUE DATE: 31-JAN-24.;[04] TOOLS USED: TEMPERATURE CONTROLLER P/N: P3015GOES00000; S/N: 142811020; DUE DATE: 25-JAN-24; TEMPERATURE CONTROLLER P/N: P3015GOES00000; S/N: 142811019; DUE DATE: 25-JAN-24.;[05] PERFORMED PERMANENT REPAIR ON STRINGER 23R BETWEEN BS500A TO BS500C AT FWD C.C I.A.W B737-700 SRM 53-00-03-2R-1 REPAIR 1. SEE INDIVIDUAL SIGN OFF BELLOW;[06] PERFORMED PERMANENT REPAIR ON STRINGER 23R BETWEEN BS500A TO BS500C AT FWD C.C I.A.W B737-700 SRM 53-00-03-2R-1 REPAIR 1. RII;SEE INDIVIDUAL SIGN OFF BELLOW.

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