Service difficulty report · Longeron · Doug DC873F

Difficulty date
June 7, 2011
Submitted
July 13, 2011
Operation
Air carrier
Aircraft
N807DH
Make and model
Doug DC873F
Aircraft serial
45990
Aircraft time
94,040 hours, 29,957 cycles
Part
Longeron
Condition
Corroded
Location
Zone 100
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

FWD ACCY COMPT- L33R SHOWS EXFOLIATION CORROSION AT STA 14.000. PERFORMED MAJOR REPAIR IAW SRM 53-2-2, FIG 10 SHEET 1,3, TR 53-153 SHEET 4, TR 53-193. REMOVED FASTENERS IAW SRM 51-1-21. REMOVED LEVEL II CORROSION IAW SRM 51-1-8, PG 17-18. FOUND OUT OF LIMITS IAW SRM 53-2-0, PG 2M. CUT OUT LONGERON SEGMENT + FABRICATED NEW SEGMENT & SPLICE FITTING IAW SRM;S 53-2-2, FIG 10, SHEET 1-3, TR 53-153, 53-2-2 FIG10 SHEET 4, TR 53-193, 51-1-0A & TR 51-144, PG 7. NO CRACK OR CORROSION FOUND. CLEANED, TREATED AND PRIMED AREA & REPAIR PARTS IAW SRM 51-1-8B. INSTALLED REPAIR PARTS IAW SRM 53-2-2, FIG 10, SHEET 1-3, TR 53-153, SHEET 4, TR 53-193, SRM 51-1-11, SRM 51-1-21.

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