SDR SWAA2023052228875

Service difficulty report · Intercostal · Boeing 737752

Difficulty date: April 19, 2023
Submitted: May 22, 2023
Operation: Air carrier
Aircraft: N7835A
Make and model: Boeing 737752
Aircraft serial: 34294
Aircraft time: 57,926 hours, 30,275 cycles
System (JASC): 5320 · Fuselage Miscellaneous Structure
Part: Intercostal
Condition: Cracked
Location: Zn 200 Fus Top
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

PASSENGER CABIN FLOOR INTERCOSTAL BETWEEN STA 312 AND STA 328 RBL 30 WL 208.1 HAS A CRACK AROUND FASTENER HOLE.<[01] OK TO INSTALL NEW INTERCOSTAL.;[02] REMOVED AND REPLACE PASSENGER CABIN FLOOR INTERCOSTAL BETWEEN STA 312 AND STA 328 RBL 30 WL 208.1 PER B737-700 SRM 51-40-02-0G-0.;[03] CORRECTING STEP 2: REMOVED AND REPLACE PASSENGER CABIN FLOOR INTERCOSTAL BETWEEN STA 312 AND STA 328 RBL 30 WL 208.1 PER B737-700 SRM 51-40-02-0G-0 AND DRWG# 141A5400 SHEET 39.;[04] RII. VERIFIED INSTALLATION STEPS.