# SDR TWAA0003729

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 29, 2000
- Submitted: April 13, 2000
- Operation: Air carrier
- Aircraft: N989Z
- Make and model: Doug DC-9-31
- Registry model: [Doug DC-9-31](https://openairdocs.org/model/douglas-dc-9-31) (OpenAirDocs)
- Aircraft serial: 47135
- Aircraft time: 77,008 hours, 82,903 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Web
- Condition: Corroded
- Location: Bs 220
- Stage of operation: IN
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/TWAA0003729

## Discrepancy

DURING OP 16 MAINT CHECK, FOUND SEVERE CORROSION AT STA 220, RBL 58, THE RT SIDE CUSP ANGLE.  REPAIRED PER SRM CUSP ANGLE CORROSION REPAIR 53-05, PAGE 141 AND DOUGLAS DRAWING 9923667 AND 9910078..

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.