- Difficulty date
- January 12, 2011
- Submitted
- January 14, 2011
- Operation
- Air carrier
- Aircraft
- N764NC
- Make and model
- Doug DC951
- Aircraft serial
- 47717
- Aircraft time
- 77,185 hours, 77,042 cycles
- Part
- Cusp Web
- Condition
- Cracked
- Location
- Bs 237 Rbl 55
- 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
MAIN CABIN STA 237, RBL 55, CUSP WEB IS CRACKED IN 2EA PLACES STOP DRILLED CRACK IAW DC-9 A53-10-16. FABRICATED REPAIR DOUBLER IAW SRP DC9-A-53-10-16-801-663A -A. INSTALLED DOUBLER IAW SRP DC-9-A-53-10-16-801-663A-A.P-134 10 JAN 11. REQUIRED INSPECTION COMPLETED.