SDR DALA2019092105450

Service difficulty report · Structure · Boeing 757231

Difficulty date: September 20, 2019
Submitted: September 23, 2019
Operation: Air carrier
Aircraft: N705TW
Make and model: Boeing 757231
Aircraft serial: 28479
Aircraft time: 81,874 hours, 20,897 cycles
System (JASC): 5320 · Fuselage Miscellaneous Structure
Part: Structure
Condition: Corroded
Location: Fuselage
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

(AIRCRAFT 6811, L/P 1280208) AWR HIDDEN CORROSION: DURING REMOTION OF AFT CARGO LOWER SILL (SIDE PANEL), WAS FOUND CORROSION AT INNER CHORD (LOWER FACE) BTW STA 1380 TO 1440, IN REF TO NRC 00356. CORRECTIVE ACTION: INNER CHORD(LOWER FACE) BTW STA 1380 TO 1440, WAS REPLACED PER SRM 51-40-02 PAR 4 AND 7 AND DGW 146N8522 REV E.