SDR DL73K002450

Service difficulty report · Keelbeam · Boeing 737232

Difficulty date: December 13, 2000
Submitted: January 2, 2001
Operation: Air carrier
Aircraft: N327DL
Make and model: Boeing 737232
Aircraft serial: 23099
Aircraft time: 46,236 hours, 37,398 cycles
System (JASC): 5314 · Fuselage Main, Keel
Part: Keelbeam
Part number: 6546877143
Condition: Cracked
Location: Fuselage
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

FUSELAGE / STRG. 18A SHEAR BEAM / FS 727 / LT & RT SIDES : CRACK REPAIRS THE WEB SECTION OF THE STRINGER 18A SHEAR BEAMS WERE FOUND CRACKED AT FS 727. THE RH BEAM CRACK IS 3 INCH LONG AND THE LT BEAM CRACK IS 1.5 INCH. THE CRACKS ARE SIMILAR TO THOSE SHOWN IN BAC S/B 737-53-1066, HOWEVER THE S/B IS NOT EFFECTIVE FOR THIS AIRCRAFT. THE CRACKS WERE STOP DRILLED AND REPAIRED WITH STEEL REPAIR ANGLES PER ER/A 379531-14, REV A.