Service difficulty report · Frame · Boeing 7272Q9

Difficulty date
August 8, 2007
Submitted
August 12, 2007
Operation
Air carrier
Aircraft
N741DH
Make and model
Boeing 7272Q9
Aircraft serial
21931
Aircraft time
48,407 hours, 38,367 cycles
Part
Frame
Condition
Corroded
Location
Bs 320
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

NOSE SECTION INTERIOR, HORIZ WALKWAY BEAM, BS 320, FRAME CORRODED BETWEEN STR 25R AND 26R. CUT OUT DAMAGED AREA, DIMENSIONS 24.125 IN LENGTH, FABRICATED FRAME REPAIR, AND DOUBLER FROM 7075-T0, .040 BY 17.0 BY 5.0, PO NR 9004201 (FRAME SECT), AND 11 BY 5 (DOUBLER), PER B727 SRM 51-40-3 FIG 1, 51-30-5, 51-20-1, AND 53-10-2 FIG 1. HEAT TREATED FRAME REPAIR AND DOUBLER TO T-6 CONDITION PER FASI ER NR 2-37153-801 REV A. TREATED, PRIMED, AND INSTALLED FRAME REPAIR AND DOUBLER, PER B727 SRM 51-10-2 AND 51-40-3 FIG 1.

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