Service difficulty report · Stringer · Boeing 7377H4

Difficulty date
August 1, 2023
Submitted
September 5, 2023
Operation
Air carrier
Aircraft
N449WN
Make and model
Boeing 7377H4
Aircraft serial
32469
Aircraft time
65,862 hours, 39,346 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 26L LOCATED BS540 AND WL151 FWD CARGO COMPARTMENT 2023-477581<[01] TOOL USED: ULTRASONIC THICKNESS GAGE; P/N: 38DLPLUS; S/N: 120398603; CAL DUE DATE: 07-NOV23;[02] TOOL USED EDDY CURRENT INSTRUMENT P/N NORTEC500D S/N N500X12101V022237 DUE DATE 26-JAN-24;[03] TOOL 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.;[04] PERFORM REPAIR LOCATED ON STRINGER 26L LOCATED BTW BS 500D + 10? TO BS 540 AT FWD CARGO COMPARTMENT. IAW B737-700 SRM 53-00-03-2R-1 REPAIR 1. ?SEE INDIVIDUAL SIGNOFFS BELOW?.;[05] CORRECTED STEP 4.<BR>PERFORMED REPAIR LOCATED ON STRINGER 26L LOCATED BTW BS 500D + 10? TO BS 540 AT FWD CARGO COMPARTMENT. IAW B737-700 SRM 53-00-03-2R-1 REPAIR 1. ?SEE INDIVIDUAL SIGNOFFS BELOW?.;[06] PERFORMED REPAIR LOCATED ON STRINGER 26L LOCATED BTW BS 500D + 10? TO BS 540 AT FWD CARGO COMPARTMENT. IAW B737-700 SRM 53-00-03-2R-1 REPAIR 1. ?SEE INDIVIDUAL SIGNOFFS BELOW?.<BR>RII

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