# SDR DALA1125999871

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 14, 2011
- Submitted: April 15, 2011
- Operation: Air carrier
- Aircraft: [N780NC](https://openairdocs.org/aircraft/N780NC), registered now
- Make and model: Doug DC-9-51
- Registry model: [Doug DC-9-51](https://openairdocs.org/model/mcdonnell-douglas-dc-9-51) (OpenAirDocs)
- Aircraft serial: 48102
- Aircraft time: 72,571 hours, 67,115 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Cusp Web
- Condition: Damaged
- Location: Fuselage
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA1125999871

## Discrepancy

CUSP WEB STATION 693-753 HAS CRACKS AND CORROSION THROUGHOUT PANEL.  FOUND ON FURTHER OPEN UP FOR FRAME 734 REPLACEMENT CARD 6C/176.  FABRICATED NEW CUSP WEB & RING DOUBLERS IAW BOEING DRAWING S609530019.  TREATED AND PRIMED IAW DC9 SRM 51-10-3.  WEIGHT OF DOUBLERS 15.6 OZ DELTA TOPPS  20-10-25.  INSTALLED ID TAG PER DELTA DSM900-5-01 NO 4.

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