SDR DALA2022121308090

Service difficulty report · Floor Support · Boeing 757231

Difficulty date: December 10, 2022
Submitted: December 13, 2022
Operation: Air carrier
Aircraft: N721TW
Make and model: Boeing 757231
Aircraft serial: 29954
Aircraft time: 83,196 hours, 21,517 cycles
System (JASC): 5320 · Fuselage Miscellaneous Structure
Part: Floor Support
Condition: Corroded
Location: Bs 1460-1480
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

SHIP 6810 CORROSION ON FLOOR STRINGERS 2, 7, 10 AND 16 LBL, FROM STA. 1460 TO 1480 AT AFT CARGO COMPARTMENT. CORRECTIVE ACTION: SUMMARY OF NRC 00207: FLOOR SUPPORT STRINGER LBL 2,10,16 WERE REPLACED PER B757-200 SRM AND FLOOR SUPPORT STRINGER LBL 7 WAS REPAIRED PER B-757-200 SRM. (2533210)