Service difficulty report · Intercostal · Boeing 7377CT

Difficulty date
September 23, 2021
Submitted
October 28, 2021
Operation
Air carrier
Aircraft
N7831B
Make and model
Boeing 7377CT
Aircraft serial
32752
Aircraft time
58,334 hours, 29,483 cycles
Part
Intercostal
Condition
Cracked
Location
Fuselage
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

PASSENGER CABIN FWD WET AREA INTERCOSTAL AT BL-0 BETWEEN STA#277 AND STA#291.5; HAS CRACKS. DOT#208-02 ; / [01] PERFORMED HFEC IAW NDTM PART 6;51-00-00 PROCEDURE 23.<BR>CRACK CONFIRMED. CRACK LENGTH : 0.945'; [02] REMOVED AND REPLACED INTERCOSTAL AT BL-0 BETWEEN STA. 277 AND 291.5 CABIN FWD WET AREA AS PER B-737-7 SRM. 51-40-02-0G-0-A00729.; [03] VERIFIED STEP 2

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