SDR DALA2026030901613

Service difficulty report · Support · Boeing 757351

Difficulty date: March 4, 2026
Submitted: March 9, 2026
Operation: Air carrier
Aircraft: N584NW
Make and model: Boeing 757351
Aircraft serial: 32984
Aircraft time: 79,077 hours, 26,068 cycles
System (JASC): 5320 · Fuselage Miscellaneous Structure
Part: Support
Condition: Corroded
Location: Zone 100
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

SHIP 5804 CORROSION ON LOWER SILL SETTLEMENT AREA OF THRESHOLD (UPPER/LOWER FACE) BTW STA 1360 TO STA 1460 AT AFT CARGO COMPARTMENT. CORRECTIVE ACTION: SUMMARY OF NRC 00217: CORROSION LEVEL 2. LOWER SILL SETTLEMENT AREA OF THRESHOLD (UPPER/LOWER FACE) BTW STA 1360 TO STA 1460 AT AFT CARGO COMPARTMENT WAS REPLACED AND INSTALLED PER B757-300 SRM 51-40-02-0G PAR.4B AND PAR.7D. (1479326)