Service difficulty report · Spar Cap · Doug DC873F

Difficulty date
November 21, 2007
Submitted
December 6, 2007
Operation
Air carrier
Aircraft
N801DH
Make and model
Doug DC873F
Aircraft serial
46033
Aircraft time
85,401 hours, 32,570 cycles
Part
Spar Cap
Condition
Cracked
Location
Lt Wing
Part time
85,401 hours, 32,570 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

LT LWR WING FRONT SPAR CAP CRACKED 1.250" APPROXIMATELY AT STA XFS 520.000 (MAJOR REPAIR). PERFORMED MAJOR REPAIR IAW FAA FORM 8100-9 DATED 11-20-07, BOEING MSG NR 1-653039342-4 DATED 10-22-07, BOEING SKETCH JO060232, JCT04316, EVA D857-00022 REV IR DATED 10-27-07. REMOVED FASTENERS IAW SRM 51-1-20D. CUT OUT DAMAGED SECTION AND FABRICATED FILLER (AL7075T7351) DOUBLER (AL7075 T7351) (4EA) ANGLES (7075"0" 0.071") IAW BOEING SKETCH J060232. NDT INSPECTED CUT OUT AREA. NO CRACK NO CORROSION FOUND IAW NDT SPM PART 08-00-02 TO 07. ENCLOSED SMN FORM 242-4. HEAT TREATED ANGLES 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 EVA D857-00022, SKETCH BOEING J060232, JCT04316, DWG 5802736, SRM 51-1-20D, SRM 51-3-1 (TORQUE). FUEL LEAK CHECKED GOOD IAW TR NR 28-63 PG 1-11.

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