Service difficulty report · Keelbeam · Boeing 727247

Difficulty date
August 5, 2011
Submitted
August 24, 2011
Operation
Air carrier
Aircraft
N236FE
Make and model
Boeing 727247
Aircraft serial
21330
Aircraft time
69,823 hours, 48,693 cycles
Part
Keelbeam
Part number
652355570
Condition
Corroded
Location
Bs 804
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

EXFOLIATED CORROSION ON KEELBEAM LWR SURFACE AT LIGHTNING HOLE AT FS 804. REMOVED DAMAGED WEB AND "T" ANGLE FITTINGS (3) AT BS 740 -BS 870 BL0. FABRICATED NEW KEEL BEAM LOWER WEB. LOCATED, DRILLED, AND DEBURRED NEW TEE FITTINGS. INSTALLED NEW TEE FITTINGS AND NEW LOWER WEB (KEEL BEAM AREA) IAW SRM 51-30-2, SRM 53-10-1 FIG 1, SRM 53-10-2 FIG 1, SRM 51-30-5, SRM 51-10-2, AND DRAWING 65-23555.