SDR SWAA2020113027339

Service difficulty report · Floor Support · Boeing 7377K9

Difficulty date: October 30, 2020
Submitted: November 30, 2020
Operation: Air carrier
Aircraft: N7813P
Make and model: Boeing 7377K9
Aircraft serial: 30041
Aircraft time: 57,662 hours, 30,458 cycles
System (JASC): 5320 · Fuselage Miscellaneous Structure
Part: Floor Support
Part number: 146A813217
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

CORROSION ON INTERCOSTAL AT AFT CARGO BAY BS 807-BS 787 RBL 6 WL 153. REMOVED CORROSION ON INTERCOSTAL AT AFT CARGO BAY BS 807-BS 787 RBL 6 WL 153 MEASURED 19' X 2.3' X .010'. ORIGINAL MATERIAL THICKNESS .045', FOUND TO BE OUT OF LIMITS, IAW SRM 53-60-15-1A-1 STEP 4C (2) FIG 103. REMOVED AND REPLACED INTERCOSTAL P/N 146A8132-17, IAW SRM 51-40-02 AND DWG 146A8130.

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