Service difficulty report · Longeron · Doug DC872

Difficulty date
December 29, 2005
Submitted
January 27, 2006
Operation
Air carrier
Aircraft
N722CX
Make and model
Doug DC872
Aircraft serial
46130
Aircraft time
71,621 hours, 17,096 cycles
Part
Longeron
Condition
Cracked
Location
Bs 1617
Part time
71,621 hours, 17,096 cycles
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

DURING ROUTINE C CHECK INSPECTION, AFT FUSELAGE.- CRACKED 3, L-17L STA 1617.000. PERFORMED MAJOR REPAIR IAW SRM 53-5-2 FIG. 5. REMOVED CRACKED L-17L IAW SRM 53-1-0, SRM 51-1-20D. FABRICATED NEW LONGERON (EXTRUSION P/N S1616757) IAW SRM 53-5-2 FIG. 5 (SHEET 1) ITEM B, SRM 51-2-0 FIG. 50. CLEANED, TREATED AND PRIMED AREA IAW SRM 51-1-8B. APPLIED SEALANT TO FAYING SURFACES IAW SRM 51-1-11 PAGE 9. INSTALLED NEW LONGERON IAW SRM 51-1-20D, SRM 51-3-1 (TORQUE).

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