# SDR SIMA1681

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 16, 2000
- Submitted: August 23, 2000
- Operation: Air carrier
- Aircraft: N550LL
- Make and model: Aerosp ATR 72-212A
- Registry model: [Aerosp ATR 72-212A](https://openairdocs.org/model/aerospatiale-atr-72-212a) (OpenAirDocs)
- Aircraft serial: 550
- System (JASC): [3411 · Pitot/Static System](https://openairdocs.org/jasc/3411)
- Part: Pitot Tube
- Condition: Blocked
- Location: Airspeed Ind
- Stage of operation: TO
- How discovered: O
- Nature of condition: O
- Precautionary procedure: C
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SIMA1681

## Discrepancy

FLT 3709 - DFW - ON TAKEOFF AFTER POWER SET, ADU FAILED AND NO AIRSPEED INDICATION ON CAPT SIDE.  AIRSPEED INDICATION WITH NO RED FLAGS.  CLEARED BLOCKAGE IN NUMBER 1 PITOT LINE.  OPS CHECK GOOD.  (M)

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