# SDR DLM88971387

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 11, 1997
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N972DL
- Make and model: Doug MD-88
- Registry model: [Doug MD-88](https://openairdocs.org/model/mcdonnell-douglas-md-88) (OpenAirDocs)
- Aircraft serial: 53215
- System (JASC): [5400 · Nacelle/Pylon Structure](https://openairdocs.org/jasc/5400)
- Part: Bolt
- Part number: 49381843
- Condition: Worn
- Location: Nr 1 Pylon
- 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/DLM88971387

## Discrepancy

THE NR 1 PYLON APRON SUPPORT BOLT HAS WORN SURFACES ON BOTH ENDS.  THIS ER/A AUTHORIZES THE MANUFACTURE OF THE BOLT (DAC P/N 4938184-3) PER DRAWING 4938184, USING SUBSTITUTE MATERIAL 17-4PH HT TR 180-200 KSI.

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