Service difficulty report · Keelbeam · Boeing 7272B7

Difficulty date
December 10, 2008
Submitted
January 28, 2009
Operation
Air carrier
Aircraft
N770AT
Make and model
Boeing 7272B7
Aircraft serial
21953
Aircraft time
67,264 hours, 39,529 cycles
Part
Keelbeam
Condition
Cracked
Location
Zone 100
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

LOWER FUSELAGE AIR CONDITIONING BAY AT BS 740 KEEL BEAM LOWER LEFT CHORD WITH CRACK. REPAIRED FUSELAGE LEFT SIDE KEEL BEAM LOWER CHORD AT HORIZONTAL FLANGE SECTION FROM BS 740 TO BS 748 LBL 7 IAW COOPESA EO-COO-2-53-503-08 DTD 12/24/08 AND BOEING MESSAGE 1-1127202504-3 DTD 12/23/08 DOCUMENTED ON FAA FORM 8100-9.

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