Service difficulty report · Floorbeam · Boeing 757200

Difficulty date
December 15, 2010
Submitted
December 15, 2010
Operation
Air carrier
Aircraft
N473AC
Make and model
Boeing 757200
Aircraft serial
24738
Aircraft time
59,116 hours, 20,705 cycles
Part
Floorbeam
Part number
BAC1505100880
Condition
Gouged
Location
Bs 365
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

FLOORBEAM UPPER CHORD STIFFENER AT STA 365 BETWEEN BL 0 AND RBL 60 HAS GOUGES AND CORROSION. REMOVED DAMAGE IAW SRM 53-00-51, FIG 101, DETAIL 3; ORIGINAL MATERIAL -.090", AFTER REWORK -.038", LOSS - .012", MORE THAN 10 PERCENT ALLOWABLE, OUT OF LIMITS IAW SRM 53-00-51, FIG 101, DETAIL 3. FABRICATED NEW FLOORBEAM UPPER CHORD, USING BAC 1505-100880/12, BATCH 1895840, IAW SRM 53-00-51, REPAIR NR3. REPAIR STRAPS FABBED ON TRAVELERS, T10/862191 AND T10/862192. INSTALLED NEW FLOORBEAM UPPER CHORD REPAIR IAW SRM 51-40-02 AND SRM 53-00-51, REPAIR NR3, AT BS 365, BL0 - RBL 60. (L=1", W=2", D=.012"). MAJOR REPAIR.

More about the Boeing 757-200 SERIES