Service difficulty report · Floorbeam · Boeing 757231

Difficulty date
December 10, 2010
Submitted
December 15, 2010
Operation
Air carrier
Aircraft
N997FD
Make and model
Boeing 757231
Aircraft serial
24738
Aircraft time
59,116 hours, 20,705 cycles
Part
Floorbeam
Part number
BAC1505100880
Condition
Corroded
Location
Bs 700
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

MAIN DECK FLOORBEAM UPPER SURFACE BS700 RBL48 TO RBL58 HAS CORROSION. REMOVED CORROSION FROM BS 700, RBL 48-58, PER SRM 51-10-02. ORIGINAL MATERIAL; .125", MATERIAL LOSS; .046", W=2", L=7". FOUND TO BE OUT OF LIMITS PER SRM 53-00-01, FIG.101, DETAIL 2. CUT AND REMOVED UPPER CHORD PER SRM 53-00-51, REPAIR #3. FABBED NEW UPPER CHORD, BAC 1505-100880, ANGLE 2, BAC 1490-2734 AND RECEIVED ANGLE 3 FABBED ON TRAVELER T10/862577. FABBED STRAP 4, 7075-T6, STRAP 5, 7075-T6, ALL PER SRM 53-00- 51, REPAIR #3. INSTALLED ALL REPAIR MATERIALS PER SRM 51-40-02, SRM 53-00-51, REPAIR #3, AT BS 700, RBL 37-70, ON FLOORBEAM. MAJOR REPAIR