SDR DALA1114799877

Service difficulty report · Floor Support · Doug DC951

Difficulty date: March 2, 2011
Submitted: March 3, 2011
Operation: Air carrier
Aircraft: N786NC
Make and model: Doug DC951
Aircraft serial: 48148
Aircraft time: 68,643 hours, 62,328 cycles
System (JASC): 5320 · Fuselage Miscellaneous Structure
Part: Floor Support
Condition: Corroded
Location: Bs 160-217
Stage of operation: IN
How discovered: 9
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

CORROSION ON FLOOR SUPPORT FOR PANELS 17 AND 18 ON TOP AND BOTTOM. BLENDED OUT DAMAGE AREA ON UPPER FLANGE ON FLOOR SUPPORT AT STA 160 TO 217 FOUND TO BE OUT OF LIMITS IAW SRM 53-01 PAGE 3 FIG 1 SHEET 3. REMOVED FLOOR SUPPORT STA 160 TO 217 BL 0 IAW SRM 51-30-5 PAGE 29, IAW SRM 53-13-1 PAGE 25, 26 AND 72. TREATED AND PRIMED SUPPORT IAW SRM 51-10-3 PAGE 1, 2 PARA 21, 14. INSTALLED FLOOR SUPPORT IAW SRM 51-30-5 PAGE 1, 3.

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