SDR FDEA201103110938

Service difficulty report · Floorbeam · Boeing 727227

Difficulty date: March 11, 2011
Submitted: March 15, 2011
Operation: Air carrier
Aircraft: N491FE
Make and model: Boeing 727227
Aircraft serial: 21529
Aircraft time: 41,577 hours, 28,301 cycles
System (JASC): 5315 · Fuselage Main, Floor Beam
Part: Floorbeam
Part number: 65208272
Condition: Corroded
Location: Bs 420
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

CORROSION TOP TEE CAP FLOORBEAM MAIN CABIN STA 420, RBL 45 TO RBL 61. REMOVED CORROSION FROM FLOORBEAM IAW SRM 51-10-6 ORIG MAT. .125, LOSS, MAT. .015, REM MAT. .110, FOUND TO BE OUT OF LIMITS IAW SRM 53-10-1, FIG 4B. CUTOUT DAMAGE AREA FABRICATED FILLER, FABRICATED DOUBLER FROM 7075-0, .090, INSTALLED IAW SRM 51-30-2, HEAT TREATED TO 7075T6 IAW ENGINEERING REPORT NR2-371533-801, REV A.