# SDR DALA2022100406450

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 1, 2022
- Submitted: October 4, 2022
- Operation: Air carrier
- Aircraft: [N846DN](https://openairdocs.org/aircraft/N846DN), registered now
- Make and model: Boeing 737
- Aircraft serial: 31957
- Aircraft time: 22,591 hours, 8,977 cycles
- System (JASC): [3414 · Airspeed/Mach Indicator](https://openairdocs.org/jasc/3414)
- Part: None
- Condition: None
- 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/DALA2022100406450

## Discrepancy

SHIP 3846 -ATB- DUE TO AIRSPEED UNRELIABLE. CORRECTIVE ACTION: ADIRS BITE NO FAULTS. CDS BITE FAULT 31-65060 (AIRSPEED & ALTITUDE DISAGREE). PERFORMED PITOT STATIC LEAK CHECK. NO TROUBLE FOUND. FOUND RIGHT AOA WITH 200 FT. SPLIT AT 20 DEG. NOSE UP. REPLACED SAME. REPLACED TAT PROBE PRECAUTIONARY PER MCC REQUEST. OPS CHECKS GOOD.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.