SDR FDEA201912043172

Service difficulty report · Web · Boeing 7572Q8

Difficulty date: December 4, 2019
Submitted: December 13, 2019
Operation: Air carrier
Aircraft: N995FD
Make and model: Boeing 7572Q8
Aircraft serial: 25131
Aircraft time: 47,426 hours, 19,949 cycles
System (JASC): 5320 · Fuselage Miscellaneous Structure
Part: Web
Part number: 146N872244
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

MAIN DECK BETWEEN STA 1640 - 1681 RBL 50 WEB CORRODED ON TOP AND UNDER NUT PLATE. REMOVED CORROSION IN AREA AT MAIN DECK BETWEEN STA 1640 - 1681 RBL 50 WEB, ORIGINAL THICKNESS MAT OF WEB .071", MAT REM .054", MAT LOSS .017" FOUND OUT OF LIMTS IAW SRM 53-60-15-1A FIG 101 DET VI, FABRICATED NEW WEB IAW DWG 146N8722 REV N, INSTALLED NEW WEB IAW DWG 146N8722 REV N AND SRM 51-40-02-0G.

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