Service difficulty report · Longeron · Doug DC873F

Difficulty date
May 6, 2010
Submitted
June 18, 2010
Operation
Air carrier
Aircraft
N806DH
Make and model
Doug DC873F
Aircraft serial
46002
Aircraft time
92,927 hours, 29,375 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 L-36 CORRODED STA 35.000. RESOLUTION: PERFORMED MAJOR REPAIR IAW SRM 53-1-0 PG 1, SRM 53-3-3 FIG. 2 SHEET 1 ITEM "A". REMOVED CORROSION IAW SRM 51-1-8 PG 17-18. FOUND OUT OF LIMITS IAW SRM 53-2-0 PG 2P. REMOVED CORRODED LONGERON IAW SRM 53-1-0 PG 1, SRM 51-1-21, SRM 51-1-20D. FABRICATED NEW LONGERON IAW SRM 53-3-3 FIG. 2 SHEET 1 ITEM "A". HEAT TREATED FROM 7075"0" TO 7075T6 IAW SRM 51-1-1 PG 1-13-17 DPS 7.00-1 REV "BL". NDT INSPECTED NEW LONGERON IAW NDT SPM PART 08, SRM 51-1-0A PG 7 TR NR 51-144. NO CRACK FOUND. ENCLOSED SMN FORM 242-4. CLEANED, TREATED AND PRIMED AREA AND LONGERON IAW SRM 51-1-8B. INSTALLED LONGERON IAW SRM 51-1-21, SRM 51-1-20D, SRM 51-3-1.

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