SDR SWAA2022120669751

Service difficulty report · Floor Support · Boeing 7377BD

Difficulty date: November 10, 2022
Submitted: December 6, 2022
Operation: Air carrier
Aircraft: N7741C
Make and model: Boeing 7377BD
Aircraft serial: 35788
Aircraft time: 51,579 hours, 26,914 cycles
System (JASC): 5320 · Fuselage Miscellaneous Structure
Part: Floor Support
Condition: Cracked
Location: Bs 380-400 Rbl40
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

MAIN CABIN BS380 TO BS400 RBL 40 WL 208.1 INTERCOSTAL CRACKED / [01] REMOVED ANGLE SUPPORT OF INTERCOSTAL AT MAIN CABIN BS380 TO BS400 RBL. 40; REF. SRM. 51-40-02-0G-0;[02] CORRECTION STEP. 1:REMOVED INTERCOSTAL UPPER CHORD (ANGLE SUPPORT) AT MAIN CABIN BS380 TO BS400 RBL. 40. REF. 51-10-02-0G-0;[03] VERIFIED 2. OK TO REINSTALL NEW INTEROSTAL UPPER CHORD;[04] INSTALLED NEW INTERCOSTAL UPPER CHORD (ANGLE SUPPORT) AT MAIN CABIN BS380 TO BS400 RBL. 40 PN. 143A5410U174. REF. SRM. 51-40-02-0G-0.;[05] VERIFIED 4

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