Service difficulty report · Intercostal · Boeing 737752

Difficulty date
September 25, 2021
Submitted
October 12, 2021
Operation
Air carrier
Aircraft
N7843A
Make and model
Boeing 737752
Aircraft serial
35786
Aircraft time
47,875 hours, 24,909 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

FCB INTERCOSTAL CRACKED AT BS 500B +10.4; LBL 25; WL 156.5. ; / [01] INTERCOSTAL REMOVED (BAFFLE) LOCATED BTW BS 500B - BS500C; LBL.24.25; WL 156.5 IAW SRM 51-40-02. NO ENTRIES IN SRM FOR ALLOWABLE DAMAGE PART WILL BE REPAIRABLE BY REPLACEMENT IAW SRM 51-10-02 PARAGRAFH 9.C.; [02] RECEIVED NEW INTERCOSTAL(BAFFLE) P/N 143A7510-11. LOCATED AND DRILLED BTW BS 500B - BS500C; LBL.24.25; WL 156.5 IAW SRM 51-40-05; DWG# 143A7505. OK TO INSTALL.; [03] VERIFIED STEP 2.; [04] INSTALLED NEW INTERCOSTAL (BAFFLE) P/N 143A7510-11. BTW BS 500B- 500C IAW SRM 51-40-02; DWG#143A7505.; [05] VERIFIED STEP 4.; [06] UPDATED PARTS USAGE; [07] VERIFIED ALL STEPS COMPLETE.