Service difficulty report · Support Beam · Boeing 727225

Difficulty date
December 3, 2007
Submitted
February 17, 2008
Operation
Air carrier
Aircraft
N742DH
Make and model
Boeing 727225
Aircraft serial
21290
Aircraft time
60,719 hours, 38,406 cycles
Part
Support Beam
Condition
Cracked
Location
Bs 1183
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

CRACK AT RIGHT HORIZONTAL SUPPORT "I" BEAM AFT PIT BS 1183 INBOARD WL 196. REMOVED RIGHT HORIZONTAL SUPPORT BEAM BS 1183 IAW B-727 SRM 51-30-2. FABRICATED NEW "I" BEAM SUPPORT FROM BAC 1518-356 7075-T6 PO NR 7332188 APPROXIMATE DIMENSION 28.5" BY 3" IAW B-727 SRM 53-10-2 FIGURE 5 AND SRM 51-30-5. INSTALLED NEW "I" BEAM AT BS 1183 WL 196 IAW BA-727 SRM 51-30-2.