# SDR C7WA200200030

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 16, 2002
- Submitted: October 18, 2002
- Operation: Air carrier
- Aircraft: N128NA
- Make and model: Boeing 727-2J7
- Registry model: [Boeing 727-2J7](https://openairdocs.org/model/boeing-727-2j7) (OpenAirDocs)
- Aircraft serial: 20879
- Aircraft time: 54,809 hours, 43,317 cycles
- System (JASC): [3417 · Air Data Computer](https://openairdocs.org/jasc/3417)
- Part: Adc
- Condition: Failed
- Location: Cockpit
- Stage of operation: CL
- How discovered: O
- Nature of condition: O
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/C7WA200200030

## Discrepancy

AIRCRAFT DEPARTED YIP AT 23:52Z AND HAD AIR DATA INSTRUMENT FAILURE CLIMBING THRU 5000FT.  AIRCRAFT RETURNED TO YIP AND MADE OVERWEIGHT LANDING.

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