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Piper aerostar pilot reported the airspeed indicator displayed low airspeed then decayed rapidly to zero during approach.
| Attributes | |
| ACN | 1612821 |
| Time | |
| Date | 201901 |
| Local Time Of Day | 1201-1800 |
| Place | |
| Locale Reference | ZZZ.Airport |
| State Reference | US |
| Environment | |
| Flight Conditions | IMC |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | PA-60 601/601P Aerostar |
| Operating Under FAR Part | Part 91 |
| Flight Phase | Initial Approach |
| Route In Use | Vectors |
| Flight Plan | IFR |
| Person 1 | |
| Function | Pilot Flying Single Pilot |
| Qualification | Flight Crew Flight Engineer Flight Crew Air Transport Pilot (ATP) Flight Crew Flight Instructor Flight Crew Multiengine |
| Experience | Flight Crew Last 90 Days 60 Flight Crew Total 25000 Flight Crew Type 250 |
| Events | |
| Anomaly | Aircraft Equipment Problem Less Severe |
Narrative:
During descent and initial approach; airspeed became unreliable. Began to under-indicate by 15-20kts; based on pitch and power settings; then rapidly decayed to zero. Unreliable airspeed was reported to ATC. After further descent and 3-5 minutes time; airspeed returned to normal. This was also reported to ATC after controller query.flight conditions were IMC with negative ice and negative turbulence; outside air temp estimated to be -15C. Pitot heat was 'on.'
Original NASA ASRS Text
Title: Piper Aerostar pilot reported the airspeed indicator displayed low airspeed then decayed rapidly to zero during approach.
Narrative: During descent and initial approach; airspeed became unreliable. Began to under-indicate by 15-20kts; based on pitch and power settings; then rapidly decayed to zero. Unreliable airspeed was reported to ATC. After further descent and 3-5 minutes time; airspeed returned to normal. This was also reported to ATC after controller query.Flight conditions were IMC with negative ice and negative turbulence; outside air temp estimated to be -15C. Pitot heat was 'on.'
Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.