Service difficulty report · Intercostal · Boeing 737

Difficulty date
January 11, 2022
Submitted
April 26, 2022
Operation
Air carrier
Aircraft
N7750A
Make and model
Boeing 737
Aircraft serial
36716
Aircraft time
44,331 hours, 22,434 cycles
Part
Intercostal
Condition
Cracked
Location
Aft Cargo Bay
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

SUPPLEMENTAL INFORMATION: AFT CARGO BAY INTERCOSTAL IS CRACKED AT BS 946 RBL 23 WL 178 ; / [01] REMOVED AFT CARGO BAY INTERCOSTAL AT BS 946 RBL 23 WL 178 PER SRM 51-40-02-0G-0; [02] REMOVED AFT CARGO BAY INTERCOSTAL AT BS 927 TO 947 RBL 23 WL 178 PER SRM 51-40-02-0G-0; [03] LOCATED AND DRILLED NEW INTERCOSTAL AT BS 927-947 RBL 23 WL 178 P0# 826957/7 PER SRM 51-40-05-0G-0 AND DWG 147A7500. OK TO INSTALL; [04] CRACK ON INTERCOSTAL FOUND TO BE OUT OF LIMITS PER SRM 53-00-04-1A-1; [05] VERIFIED CORRECTIVE ACTION 1-4. OUT OF LIMITS; OK TO INSTALL REPLACEMENT.; [06] INSTALLED INTERCOSTAL PER SRM 51-40-02-0G-0; AND DWG 147A7500; [07] VERIFIED CORRECTIVE ACTION 6.