Service difficulty report · Keelbeam · Doug DC951

Difficulty date
April 26, 2011
Submitted
April 27, 2011
Operation
Air carrier
Aircraft
N780NC
Make and model
Doug DC951
Aircraft serial
48102
Aircraft time
72,571 hours, 67,115 cycles
Part
Keelbeam
Condition
Damaged
Location
Fuselage
Stage of operation
IN
How discovered
9
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

KEEL BEAM AREA BETWEEN GEAR DOORS THRU ACCESS 5501 UPPER LT ANGLE CRACKED APPROX 2 INCHES. CUT AND REMOVED DAMAGED SECTION OF ANGLE. NDT IAW NDT SPM 06-10-01, A2700 CHECKED GOOD. FAB (1) REPAIR SECTION 7075 0 .063. HEAT TREAT TO T6 ACCOMP ON TRAVELER NO0977. FAB 2EA REPAIR ANGLES 7075 T6 .032. ALL IAW SRM 53-01, FIG 2. ALODINED, PRIMED IAW SRM 51-10-3. INST REPAIR IAW SRM 53-01 FIG 2.

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