Service difficulty report · Intercostal · Boeing 7378H4

Difficulty date
August 8, 2022
Submitted
August 30, 2022
Operation
Air carrier
Aircraft
N8647A
Make and model
Boeing 7378H4
Aircraft serial
42528
Aircraft time
27,244 hours, 12,560 cycles
Part
Intercostal
Condition
Cracked
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

FOUND CRACK ALONG THE HOLE AT FWD AREA INTERCOSTAL AT STA 312 + 8' LBL 45.6 WL 208.1 (228- 002) / [01] REMOVED INTERCOSTAL AT STA 312 + 8' LBL 45.6 IRW SRM 51-40-02;[02] LOCATED AND DRILLED NEW INTERCOSTAL AT STA 312 + 8' LBL 45.6 IRW SRM 51-40-05;[03] VERIFIED 1 AND 2;COMPLETE;[04] OK TO INSTALL NEW INTERCOSTAL;[05] LATE ENTRY;OK TO TREAT/PRIME HOLES;[06] TREAT AND PRIMED NEW HOLES IRW AMM 51-21-41-370-803;51-21-72-370-803;[07] VERIFIED 6;COMPLETE;[08] INSTALLED INTERCOSTAL AT STA 312 + 8' LBL 45.6 IRW SRM 51-40-02.;[09] VERIFIED STEP 8.

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