Service difficulty report · Intercostal · Boeing 7272Q9

Difficulty date
July 19, 2007
Submitted
July 19, 2007
Operation
Air carrier
Aircraft
N741DH
Make and model
Boeing 7272Q9
Aircraft serial
21931
Aircraft time
48,407 hours, 38,367 cycles
Part
Intercostal
Condition
Corroded
Location
Bs 950a
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 RT BS 950A PLUS 4" INTERCOSTAL WEB CRACKED, CORRODED AT AREA UNDERNEATH SIDE WALL PANEL BETWEEN STR-26R AND STR-27R. REMOVED CRACKED ANGLE IAW B727 SRM 51-30-2. FABRICATED NEW ANGLE FROM 2024-T3 0.063" PO NR 9004940 (DIM 18 1/8" BY 1 1/2") IAW B727 SRM 53-10-2 FIG 5 AND 51-10-3 AND 51-20-1. TREATED AND PRIMED AREA AND NEW ANGLE W B727 SRM 51-10-2 AND INSTALLED NEW ANGLE AT AFT PIT RT BS 950A PLUS 4" INTERCOSTAL WEB IAW B727 SRM 51-30-2.

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