# SDR Z5FA010810N413CS1

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 8, 2010
- Submitted: January 13, 2010
- Operation: Air carrier
- Aircraft: [N413CS](https://openairdocs.org/aircraft/N413CS), registered now
- Make and model: Cessna 525B
- Registry model: [Cessna 525B](https://openairdocs.org/model/cessna-525b) (OpenAirDocs)
- Aircraft serial: 525B0082
- Aircraft time: 3,240 hours, 2,329 cycles
- System (JASC): [3418 · Stall Warning System](https://openairdocs.org/jasc/3418)
- Part: Vane
- Part number: C127171
- Part serial: 1576
- Condition: Frozen
- Location: Aoa
- Part time: 3,240 hours, 2,329 cycles
- Stage of operation: CL
- How discovered: O
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/Z5FA010810N413CS1

## Discrepancy

AFTER TAKEOFF AND BECOMING AIRBORNE THE STICK SHAKER WENT OFF CONTINUOUSLY WITH AIRSPEED INDICATION IN RED. CREW LEVELED OFF FROM 5000’ TO 2200’ AND DECLARED AN EMERGENCY. THE ACFT DIVERTED AND LANDED WITHOUT INCIDENT. MX FOUND THE ANGLE OF ATTACK VANE FROZEN INTO POSITION. THE AOA VANE WAS DEICED. OPS CHECK OF THE AOA SYSTEM AND HEATER WAS GOOD. ACFT WAS RETURNED TO SERVICE.

---
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.