Service difficulty report · Intercostal · Boeing 7377H4

Difficulty date
June 27, 2023
Submitted
July 25, 2023
Operation
Air carrier
Aircraft
N294WN
Make and model
Boeing 7377H4
Aircraft serial
32540
Aircraft time
51,742 hours, 31,145 cycles
Part
Intercostal
Part number
UNKNOWN
Condition
Cracked
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

CRACK ON INTERCOSTAL LOCATED BTW BS 294.5 TO BS 303.9 AT LEVEL STR 16L AT FWD GALLEY AREA 2023-409633<[01] REPLACED INTERCOSTAL AND FASTENERS LOCATED BTW BS 294.5 TO BS 303.9 AT LEVEL STR 16L AT FWD GALLEY AREA I.A.W B737-700 SRM 51-40-02-0G-0 AND DWG 141A8180 SHEET 27 AND 28; REV C.;[02] CORRECTED STEP 1: REPLACED INTERCOSTAL AND FASTENERS LOCATED BTW BS 294.5 TO BS 303.9 AT LEVEL STR 16L AT FWD GALLEY AREA I.A.W B737-700 SRM 51-40-02-0G-0 AND DWG 141A8180 SHEET 27 AND 28; REV C.SEE INDIVIDUAL SIGN-OFF BELOW.;[03] REPLACED INTERCOSTAL AND FASTENERS LOCATED BTW BS 294.5 TO BS 303.9 AT LEVEL STR 16L AT FWD GALLEY AREA I.A.W B737-700 SRM 51-40-02-0G-0 AND DWG 141A8180 SHEET 27 AND 28; REV C.SEE INDIVIDUAL SIGN-OFF BELOW.<BR>CERTIFIED AS RII

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