Service difficulty report · Duct · Boeing 727247

Difficulty date
December 1, 2007
Submitted
February 24, 2008
Operation
Air carrier
Aircraft
N793DH
Make and model
Boeing 727247
Aircraft serial
21393
Aircraft time
66,799 hours, 39,978 cycles
Part
Duct
Condition
Cracked
Location
Bs 1130
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 "S" INSIDE DUCT INLET, 6 O'CLOCK POSITION BS 1130. REMOVED FASTENERS FOR ACCESS IAW SRM 51-30-2 FIGURE 1. CUT OUT DAMAGE AREA 1" BY .75" ON "S" DUCT SKIN. CUT DAMAGE AREA ON STRAP 1" BY 15.25" IAW SRM 54-10-2 FIGURE 10. FABRICATED FILLER AND FABRICATED DOUBLER. FABRICATED TWO STRAP DOUBLERS IAW SRM 54-10-2 FIGURE 5 AND 54-10-3 FIGURE 10. PARTS AND AREA TREATED AND PRIMED IAW SRM 51-10-2 FIGURE 1. REPAIR AND STRAP INSTALLED IAW SRM 51-40-3 FIGURE 10 AT "S" DUCT INLET 6 O'CLOCK POSITION BS 1130.