SDR SWAA2021021542090

Service difficulty report · Plate · Boeing 7377H4

Difficulty date: January 13, 2021
Submitted: February 15, 2021
Operation: Air carrier
Aircraft: N439WN
Make and model: Boeing 7377H4
Aircraft serial: 29834
Aircraft time: 59,583 hours, 35,303 cycles
System (JASC): 5320 · Fuselage Miscellaneous Structure
Part: Plate
Condition: Corroded
Location: Aft Cargo
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

AFT CARGO BAY; R/H FLOOR TO SIDEWALL SUPPORT PLATE AS AREAS OF CORROSION AROUND NUT PLATES BS727+10 TO BS767 RBL23 WL156 / EVALUATED CORROSION ON ACB RH FLOOR TO SIDEWALL SUPPORT; BS727-767; REMOVED .015' FROM ORIG .040'; FOUND TO BE OUT OF LIMITS; IAW SRM 53-00-53-1A-2. REMOVED DAMAGED SUPPORT; LOCATED; DRILLED; AND INSTALLED NEW FLOOR TO SIDEWALL SUPPORT; BS727-767; ALL IAW SRM 51-40-05-0G-0; SRM 51-40-02-0G-0; DWG 146A7500.

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