SDR FDEA202012053043

Service difficulty report · Cusp Web · Boeing 7572Y0

Difficulty date: December 5, 2020
Submitted: December 17, 2020
Operation: Air carrier
Aircraft: N961FD
Make and model: Boeing 7572Y0
Aircraft serial: 25268
Aircraft time: 57,277 hours, 27,955 cycles
System (JASC): 5320 · Fuselage Miscellaneous Structure
Part: Cusp Web
Part number: 143N552010
Condition: Corroded
Location: Main Cabin
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 CABIN RT CUSP WEB CORRODED BETWEEN STA 600 TO 620. REMOVED CORROSION AT MAIN CABIN RT CUSP WEB BETWEEN STA. 600 TO 620 AND EVALUATED ORIGINAL MAT .036", MAT LOSS .015", MAT REM .021". FOUND OUT OF LIMITS, IAW B757 SRM 53-30-13-1A FIG 101 DET VIII. FABRICATED AND INSTALLED NEW CUSP WEB, IAW B757 SRM 51-30-01-0G, 51-40-02-0G AND BOEING DWG 143N5520 REV B.

More about the Boeing 757-2Y0