SDR DALA2016061504792

Service difficulty report · Cusp Web · Boeing 757232

Difficulty date: June 14, 2016
Submitted: June 20, 2016
Operation: Air carrier
Aircraft: N664DN
Make and model: Boeing 757232
Aircraft serial: 25012
Aircraft time: 82,270 hours, 37,450 cycles
System (JASC): 5320 · Fuselage Miscellaneous Structure
Part: Cusp Web
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 CABIN CUSP WEB CORRODED BETWEEN BS 1020-1040, RT SIDE CP53-241-01I. REMOVED CORROSION MAIN CABIN CUSP WEB STA 1020-1040, RT SIDE IAW SRM 51-10-02. EVALUATED AREA ORIGINAL THICKNESS .063, REMOVED .034, REMAINING .029 FOUND TO BE OUT OF LIMITS IAW SRM 53-40-13. FABRICATED NEW WEB FROM .063, 7075-0 AND HEAT TREATED TO T-6 CONDITION IAW DWG 144N5140, REV: AB. LOCATED DRILLED AND INSTALLED NEW WEB IAW SRM 51-40-02 AND DWG 144N5140, REV: A.