Service difficulty report · Stringer · Boeing 727225

Difficulty date
December 3, 2007
Submitted
February 16, 2008
Operation
Air carrier
Aircraft
N742DH
Make and model
Boeing 727225
Aircraft serial
21290
Aircraft time
60,719 hours, 38,406 cycles
Part
Stringer
Condition
Corroded
Location
Bs 460-480 S28l
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 LOWER LOBE (E/E BAY) STATION 480-460 STRINGER 28L INSIDE HAT CHANNEL OF STRINGER RUNS THE LENGTH OF LIGHT SURFACE CORROSION. REMOVED STRINGER FROM BS 460 - BS 480 PREVIOUS SPLICE IAW B-727 SRM 51-30-2. FABRICATED NEW STRINGER FILLER FROM BAS 1498-138 7075-T6 PO NR 7332258 APPROXIMATE DIMENSION 29" LENGTH. FABRICATED STRINGER SPLICE FROM 7075-T6 0.040" PO NR 9005634 APPROXIMATE DIMENSION 13" BY 5" IAW B-727 SRM 53-10-3 FIGURE 1 AND SRM 53-10-2 FIGURE 9. INSTALLED NEW STRINGER REPAIR PARTS AT BS 460 TO BS 480 STRINGER 28L IAW B-727 SRM 51-30-2 AND SRM 53-10-3 FIGURE 1.