# SDR TWAA9809506

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 14, 1997
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N991Z](https://openairdocs.org/aircraft/N991Z), registered now
- Make and model: Doug DC-9-31
- Registry model: [Doug DC-9-31](https://openairdocs.org/model/douglas-dc-9-31) (OpenAirDocs)
- Aircraft serial: 47096
- System (JASC): [5330 · Fuselage Main, Plate/Skin](https://openairdocs.org/jasc/5330)
- Part: Skin
- Condition: Bulged
- Location: Bs 180
- 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/TWAA9809506

## Discrepancy

MCI - DURING OP 15 MAINTENANCE CHECK, FOUND AT FS 180 BETWEEN L21L TO L22L, AREA HAD A RAISED PLACE IN THE SKIN.  REPAIRED PER SRM 51-50-00, AND INSTALLED DOUBLER PER SRM 53-04, FIG 38 SHT 23 PAGE 218.  ACFT TT:  51,723 HOURS.  ACFT TC:  52,362.  (X)

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