# SDR TWAA9811007

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 7, 1998
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N980Z
- Make and model: Doug DC-9-31
- Registry model: [Doug DC-9-31](https://openairdocs.org/model/douglas-dc-9-31) (OpenAirDocs)
- Aircraft serial: 47344
- System (JASC): [5313 · Fuselage Main, Longeron/Stringer](https://openairdocs.org/jasc/5313)
- Part: Longeron
- Condition: Cracked
- Location: Bs 160
- 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/TWAA9811007

## Discrepancy

MCI - DURING OP 15 MAINTENANCE CHECK, FOUND LONGERON 4L WITH CRACKED FLANGES AT STA 160.  REPLACED LONGERON PER SRM 53-02, PG 48 TO PG 53.  REPLACED FASTENERS COMMON TO SKIN USING NAS 1097-6.  ACFT TT:  69,860 HOURS.  ACFT TC:  81,151.  (X)

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