# SDR TWAA0008711

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 23, 2000
- Submitted: June 5, 2000
- Operation: Air carrier
- Aircraft: N978Z
- Make and model: Doug DC-9-31
- Registry model: [Doug DC-9-31](https://openairdocs.org/model/douglas-dc-9-31) (OpenAirDocs)
- Aircraft serial: 47250
- Aircraft time: 75,804 hours, 88,221 cycles
- System (JASC): [5330 · Fuselage Main, Plate/Skin](https://openairdocs.org/jasc/5330)
- Part: Skin
- Condition: Cracked
- Location: Fuselage
- Stage of operation: IN
- How discovered: E
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/TWAA0008711

## Discrepancy

AT CHECK-C MAINT CHECK, FOUND APPROX 2 INCH CRACK IN OUTER SKIN AT STA 108, BETWEEN LONGERON 27L AND 28L.  ACCOMP NDT HIGH FREQ EDDY CURRENT PER 51-00-03 PART 6.  CRACK WAS CONTAINED AT DRAIN HOLE.  STOP DRILLED CRACK AND INSTALLED REPAIR DOUBLER PER SRM 53-01 FIG 2.

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