Service difficulty report · Doubler · Doug DC873F

Difficulty date
April 4, 2009
Submitted
May 22, 2009
Operation
Air carrier
Aircraft
N801DH
Make and model
Doug DC873F
Aircraft serial
46033
Aircraft time
87,000 hours, 33,217 cycles
Part
Doubler
Condition
Broken
Location
Fuselage
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

FUSELAGE NOSE SECTION, INTERNAL DOUBLER BROKEN AT STA 156.00, L-36 (REF ACCESS NR 2). MAJOR REPAIR. PERFORMED MAJOR REPAIR IAW FAA FORM 8110-3 NR 09218 DATED 05-11-09, EVA DB53-00259 REV IR DATED 04-22-09, SEMAN DWG ED 4932 DATED 04-14-09. CUT DAMAGED SECTION IAW SEMAN DWG NR ED-4932, PERFORMED NDT INSPECTION IAW DC8 NDT SPM PART DG-10-01-001. NO CRACK FOUND. ENCLOSED SMN-FDRM 242-2 FABRICATED INNER STRAP (AL7075T6 0.063") PLUS INTERNAL REPAIR DOUBLER (AL7075"0" 0.050")PLUS EXT REPAIR DOUBLER (AL7075T6 0.063") IAW SEMAN DRG NR ED-4932. HEAT TREATED INTERNAL REPAIR DOUBLER FROM 7075"0" TO 7075T6 IAW SRM 51-1-1 PG 1.13.17. CLEANED, TREATED, AND PRIMED AREA AND REPAIR PARTS IAW SRM 51-1-8B. INSTALLED REPAIR PARTS IAW SEMAN DWG ED-4932 SRM 51-1-11, SRM 51-1-21, SRM 51-1-20D, SRM 51-3-0, SRM 51-3-1.

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