Service difficulty report · Intercostal · Doug MD11F

Difficulty date
September 25, 2007
Submitted
October 15, 2007
Operation
Air carrier
Aircraft
N290UP
Make and model
Doug MD11F
Aircraft serial
48456
Aircraft time
78,001 hours, 12,487 cycles
Part
Intercostal
Condition
Cracked
Location
Bs 1761-1781
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

INSPECTION TYPE:C CTR CARGO INTERCOSTAL AT LT 42, LT 43 STA 1761 - 1781 FOUND CRACKED. CTR CARGO STA 1761-1781 LONGERON 42-43 LT CRACKED INTERCOSTAL REMOVED. INTERCOSTAL FABRICATED FROM MAT'L 7075-0 CONDITION AS PER DWG AC A7049. INTERCOSTAL HEAT TREATED PER DPS 7.00-1 & HARDNESS VALUES HRB 86.9 AS PER DPS 1.05-3. INTERCOSTAL HOLES PICKED UP, REPROTECTED & PAINTED. INTERCOSTAL INSTALLED AT CTR CARGO STA 1761 - 1781 LT 42-43.

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