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SDR DHL2007742021

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Service difficulty report · Intercostal · Boeing 727225

FAA SDR system

Difficulty date
November 23, 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
System (JASC)
5320 · Fuselage Miscellaneous Structure
Part
Intercostal
Condition
Cracked
Location
Bs 1148-1166
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

AFT PIT INTERCOSTAL BETWEEN BS 1148 - 1166 JUST BELOW STRINGER 26R HAS LOWER ANGLE CRACKED AND CORRODED. REMOVED TRANSITION PANEL SECTION FROM BS 1135 TO 1166 RIGHT, INTERCOSTAL AND CRACKED LOWER ANGLE IAW B-727 SRM 51-30-3. FABRICATED NEW ANGLE FROM 7075-T6 0.063" PO NR 9005922 (DIMENSION 16.75" BY 2.25") IAW B-727 SRM 53-10-2 FIGURE 5 AND 51-20-1. TREATED AND PRIMED NEW ANGLE IAW B-727 SRM 51-10-2. INSTALLED NEW ANGLE IAW B-727 SRM 51-30-2, REINSTALLED INTERCOSTAL AND TRANSITION PANEL IAW B-727 SRM 51-30-2.