SDR FDEA202101030002

Service difficulty report · Floor Support · Boeing 75728A

Difficulty date: January 3, 2021
Submitted: January 12, 2021
Operation: Air carrier
Aircraft: N971FD
Make and model: Boeing 75728A
Aircraft serial: 26277
Aircraft time: 50,724 hours, 17,417 cycles
System (JASC): 5320 · Fuselage Miscellaneous Structure
Part: Floor Support
Part number: 141N5160469
Condition: Corroded
Location: Main Cargo
Stage of operation: IN
How discovered: 9
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 CARGO FLOOR SUPPORT CHANNEL HAS CORROSION AT RBL-58 BETWEEN STA 324 AND STA 345. REMOVED CORROSION ON SUPPORT CHANNEL STA 324 AND STA 345 RBL 58, IAW B757 SRM 51-10-02. ORIG MAT .050 LOSS .040 REM .010 OUT OF LIMITS, IAW B757 SRM 5300-51-1A FIG 101. REMOVED, FABRICATED AND INSTALLED NEW SUPPORT CHANNEL, IAW B757 SRM 51-40-02, 51-40-05, 51-30-01 AND BOEING DWG 141N5160 REV CD.

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