Service difficulty report · Intercostal · Boeing 7377Q8

Difficulty date
May 17, 2022
Submitted
June 16, 2022
Operation
Air carrier
Aircraft
N7876A
Make and model
Boeing 7377Q8
Aircraft serial
29355
Aircraft time
50,771 hours, 27,451 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

AFT CARGO BAY BAFFLE UNDER FLOOR TO SIDEWALL SUPPORT BS 927-947 RBL 24 IS CRACKED / [01] APPLICABLE FOR REPAIR SRM 53-00-53-1A-2 ALLOWABLE DAMAGE. REMOVED INTERCOSTAL DAMAGED IAW SRM 51-40-02. FOUND PART TO BE OUT LIMITS (CRACK) IAW SRM 53-00-53;PARAG. 4C(A) AND PARAG. 2(A)(1) FIG.103 DETAILS A;B;C.MATERIAL ID:7075-T62;0.032' TICKNESS IAW SRM 53-70-53.;[02] VERIFIED CORRECTIVE ACTION STEP 1.;[03] LOCATED AND DRILLED NEW INTERCOSTAL WITH P/N 147A7580-63;PO# 085716907AT;IAW SRM 51-10-05 AND DWG#147A7500.OK TO INSTALL.;[04] VERIFIED CORRECTIVE ACTION STEP 3. VERIFIED OK TO INSTALL.;[05] INSTALLED NEW INTERCOSTAL UNDER FLOOR TO SIDEWALL SUPPORT BS 927-947 RBL24;IAW SRM 51-40-02 AND DWG#147A7500.ALL MAINTENANCE ACTION ARE COMPLETED REQUIRE FINAL BY OFF.;[06] VERIFIED CORRECTIVE ACTION STEP 5.;[07] VERIFIED MEASUREMENT TABLE AND TASK CARD COMPLETE.

More about the Boeing 737-7Q8