SDR CALA2021031600323

Service difficulty report · Floorbeam · Boeing 75733N

Difficulty date: March 16, 2021
Submitted: March 17, 2021
Operation: Air carrier
Aircraft: N77867
Make and model: Boeing 75733N
Aircraft serial: 32592
Aircraft time: 59,503 hours, 17,360 cycles
System (JASC): 5315 · Fuselage Main, Floor Beam
Part: Floorbeam
Part number: 146N51262
Condition: Corroded
Location: 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

B757-53-3-0579 RH OTBD FLOORBEAM HAS LIGHT CORROSION AT BS1640 RB 44 - RBL 46 REF HAECO GSO NR 9281257 CLEANED AREA ON FLOORBEAM AT BS1640 RBL 44-46 REMOVED .025" ORIGINAL .070", REMAINING .045" FOUND TO BE OUT OF LIMITS PER B757 SRM 53-00-52, REMOVED AND REPLACED FLOORBEAM AT BS1600-16 40 RBL 44-46 PER B DWG 146N5126 REV A, B SRM 757 51-40-02 REF HA ECO GSO NR 9281257.

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