SDR DALA1135339880

Service difficulty report · Floorbeam · Doug DC951

Difficulty date: May 9, 2011
Submitted: May 19, 2011
Operation: Air carrier
Aircraft: N675MC
Make and model: Doug DC951
Aircraft serial: 47651
Aircraft time: 76,010 hours, 63,413 cycles
System (JASC): 5315 · Fuselage Main, Floor Beam
Part: Floorbeam
Condition: Corroded
Location: Bs 294 Bl 0-22r
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

FLOORBEAM UPPER CHORD HAS FRETTING WEAR ON REPAIR, STA 294, BETWEEN BL-0 AND RBL-22. REMOVED 2 SHIMS ON FLOORBEAM UPPER CHORD IAW SRM 51-30-5. FABRICATED 2 SHIMS, IAW SRM 53-05 FIG 20, PG 98, PRIMED IAW SRM 51-10-3, PG 31. INSTALLED 2 SHIMS, FLOORBEAM UPPER CHORD, IAW SRM 51-10-3, PG12, PARA 7. FRETTING WEAR WAS FOUND TO BE ON 2 SHIMS, NOT ON EXIST REPAIR.

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