SDR DALA2025101007429

Service difficulty report · Floor Support · Boeing 757351

Difficulty date: October 8, 2025
Submitted: October 10, 2025
Operation: Air carrier
Aircraft: N581NW
Make and model: Boeing 757351
Aircraft serial: 32982
Aircraft time: 77,261 hours, 25,983 cycles
System (JASC): 5320 · Fuselage Miscellaneous Structure
Part: Floor Support
Condition: Corroded
Location: Zone 200
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

CORROSION ON PREVIOUS REPAIR FLOOR SUPPORT LBL BTW STA 655 2.90, 7.55, 10.45 & 16.10 STA 750 2.90, & STA 780+65 2.90 7.55, 10.45 AND 16.10 AT FWD CARGO. CORRECTIVE ACTION: SUMMARY OF NRC 00183. CORROSION LEVEL 2. FLOOR SUPPORT BTW STA 630 TO 780+90 LBL 2.90, 7.55, 10.45 & 16.10 AT FWD CARGO WAS REPAIRED PER SRM 53-00-53-2R PROCEDURE 1 REPAIR 1. (1241349)