# SDR DU4R2006654

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 22, 2006
- Submitted: November 7, 2006
- Operation: Air carrier
- Filed by: [AAR Aircraft Services, LLC, repair station DU4R141M](https://openairdocs.org/faa-repair-station/DU4R141M/aar-aircraft-services-llc.md) (OpenAirDocs)
- Aircraft: N914DL
- Make and model: Doug MD-88
- Registry model: [Doug MD-88](https://openairdocs.org/model/mcdonnell-douglas-md-88) (OpenAirDocs)
- Aircraft serial: 49545
- System (JASC): [5300 · Fuselage Structure (General)](https://openairdocs.org/jasc/5300)
- Part: Threshold
- Condition: Corroded
- 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/DU4R2006654

## Discrepancy

AFT CARGO THRESHOLD BLENDED (SILL AREA) STILL SHOWS EVIDENCE OF CORROSION.  FWD AND AFT HORIZ FLANGES BLENDED OUT OF LIMITS IAW DC-9/SRM MD-88 SRM 53-05 FIG 63.  FABRICATED AND INSTALLED DOUBLER REPAIR FROM 6AL-4V.040 TITANIUM IAW DC-9/MD-88 SRM 53-05D FIG 63 AND 51-10-3D AND DELTA PS 900-5-1.

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