SDR DALA2026031801873

Service difficulty report · Intercostal · Boeing 757351

Difficulty date: March 18, 2026
Submitted: March 18, 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: Intercostal
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

CORROSION ON INTERCOSTAL FROM STA. 1520 TO STA 1540 AND STR 29R AT AFT CARGO COMPARTMENT. CORROSION LEVEL 2. INTERCOSTAL FROM STA. 1520 TO STA 1540 AND STR 29R AT AFT CARGO COMPARTMENT.WAS REPLACED PER B757-300 SRM 51-40-02-0G PAR. 7. D. (1499827)