# SDR UPS97225129

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 28, 1997
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N921UP](https://openairdocs.org/aircraft/N921UP), registered now
- Make and model: Boeing 727180C
- Aircraft serial: 19874
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Threshold
- Condition: Corroded
- Location: Bs 302
- Stage of operation: IN
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UPS97225129

## Discrepancy

INSPECTION TYPE-D, CORROSION ON UNDERSIDE OF COCKPIT DOOR THRESHOLD WEB SUPPORT STA 302 RBL 12 - LBL 12.  FABRICATED NEW WEB IAW SRM 51-20-1 FIG 7, INSTALLED IAW SRM 51-30-2.

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