Service difficulty report · Intercostal · Boeing 7377H4

Difficulty date
January 6, 2023
Submitted
February 10, 2023
Operation
Air carrier
Aircraft
N214WN
Make and model
Boeing 7377H4
Aircraft serial
32486
Aircraft time
59,300 hours, 35,194 cycles
Part
Intercostal
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

CABIN FLOOR SUPPORT INTERCOSTAL IS CRACKED BETWEEN 328-344 47' LEFT OF CENTER LINE<[01] REMOVED DAMAGED CABIN FLOOR SUPPORT INTERCOSTAL PER REF 51-40-02-0G-0.;[02] INSTALLED EWIS PROTECTION AT FWD CABIN STA 328-344 47' LEFT OF CENTER LINE PER REF AMM 20-60-07-913-801.;[03] VERIFIED STEPS 1 AND 2;[04] OK TO LOCATE AND DRILL HOLES;[05] LOCATED AND DRILLED NEW INTERCOSTAL PER REF SRM 51-40-05-0G-0;[06] VERIFIED STEP 5;[07] OK TO TREAT AND PRIME HOLES;[08] TREATED AND PRIMED PER REF AMM 51-21-41-370-803;[09] VERIFIED STEP 8;[10] OK TO INSTALL INTERCOSTAL;[11] INSTALLED NEW INTERCOSTAL PER REF SRM 51-40-02-0G-0 AND DWG 141A5400;[12] REMOVED AND REPLACED NEW INTERCOSTAL AT MAIN CABIN STA 328-344 47'LEFT OF CENTER LINE PER REF SRM 51-40-02-0G-0 AND DWG 141A5400.;[13] VERIFIED STEPS 11 AND 12

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