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Piper arrow pilot reported a low altitude alert after losing VNAV on approach and descending below the minimum descent altitude.
| Attributes | |
| ACN | 1585899 |
| Time | |
| Date | 201810 |
| Local Time Of Day | 1201-1800 |
| Place | |
| Locale Reference | ZZZ.Airport |
| State Reference | US |
| Environment | |
| Flight Conditions | IMC |
| Light | Dusk |
| Aircraft 1 | |
| Make Model Name | PA-28R Cherokee Arrow All Series |
| Operating Under FAR Part | Part 91 |
| Flight Phase | Final Approach |
| Route In Use | Vectors STAR RNAV |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | GPS & Other Satellite Navigation |
| Person 1 | |
| Function | Local Single Pilot |
| Qualification | Flight Crew Instrument Flight Crew Multiengine Flight Crew Flight Instructor Flight Crew Flight Engineer Flight Crew Air Transport Pilot (ATP) |
| Experience | Flight Crew Last 90 Days 40 Flight Crew Total 10300 Flight Crew Type 120 |
| Events | |
| Anomaly | Aircraft Equipment Problem Less Severe Deviation - Altitude Excursion From Assigned Altitude Deviation - Procedural Published Material / Policy Deviation - Procedural FAR Inflight Event / Encounter Weather / Turbulence Inflight Event / Encounter CFTT / CFIT |
Narrative:
On RNAV 35 at 1400 feet I lost VNAV on approach. I continued down to next step down altitude which was 600 feet. At 600 feet; as I was searching for the runway I continued to 480 feet. I received a low altitude alert from tower. Because I didn't have the required flight visibility I immediately started to go around. The go around and divert all went normal. Next time when my approach equipment degrades my approach I will go around and re set up for new approach.
Original NASA ASRS Text
Title: Piper Arrow pilot reported a low altitude alert after losing VNAV on approach and descending below the Minimum Descent Altitude.
Narrative: On RNAV 35 at 1400 feet I lost VNAV on approach. I continued down to next step down altitude which was 600 feet. At 600 feet; as I was searching for the runway I continued to 480 feet. I received a low altitude alert from Tower. Because I didn't have the required flight visibility I immediately started to go around. The go around and divert all went normal. Next time when my approach equipment degrades my approach I will go around and re set up for new approach.
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.