SDR CALA2018011900224

Service difficulty report · Floor Support · Boeing 757222

Difficulty date: January 19, 2018
Submitted: January 20, 2018
Operation: Air carrier
Aircraft: N597UA
Make and model: Boeing 757222
Aircraft serial: 28750
Aircraft time: 70,503 hours, 18,521 cycles
System (JASC): 5320 · Fuselage Miscellaneous Structure
Part: Floor Support
Part number: 141N5160446
Condition: Corroded
Location: Bs 310-324
Stage of operation: IN
How discovered: V
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 FWD FLOOR SUPPORT BETWEEN BS 310 AND 324, RBL 40 CORRODED ON UPPER SURFACE AT MULTIPLE AREAS. FOUND TO BE OUT OF LIMITS IAW SRM 53-00-51, FIG 101, DETAIL III, ALLOWABLE DAMAGE I. REMOVED AND REPLACED THE FLOOR SUPPORT IAW SRM 51-40-02, PG 7, PAR 7D, AND DWG 141N5160.