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High ammeter indications. After troubleshooting problem, elected to turn off non essential equipment including mode C while within 30 mile veil.
| Attributes | |
| ACN | 156898 |
| Time | |
| Date | 199009 |
| Day | Fri |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | atc facility : srp airport : sdl |
| State Reference | AZ |
| Altitude | msl bound lower : 4300 msl bound upper : 4300 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tower : sdl |
| Operator | general aviation : instructional |
| Make Model Name | Small Aircraft, High Wing, 1 Eng, Fixed Gear |
| Flight Phase | cruise other |
| Flight Plan | None |
| Person 1 | |
| Affiliation | Other |
| Function | flight crew : single pilot |
| Qualification | pilot : commercial pilot : instrument pilot : cfi |
| Experience | flight time last 90 days : 300 flight time total : 1320 flight time type : 400 |
| ASRS Report | 156898 |
| Person 2 | |
| Affiliation | government : faa |
| Function | controller : local |
| Qualification | controller : non radar |
| Events | |
| Anomaly | aircraft equipment problem : critical other anomaly other |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : declared emergency none taken : anomaly accepted |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Aircraft |
Narrative:
Noticed high ammeter indications (over voltage). After troubleshooting with no change in over voltage status, I decided to turn off all nonessential electrical equipment, including mode C transponder, even though I was within the phx mode C veil. I then contacted sdl tower and advised that I may lose electrical power, including possible loss of 2-WAY radio communications. No further assistance was required. The remainder of the flight (and landing) was uneventful.
Original NASA ASRS Text
Title: HIGH AMMETER INDICATIONS. AFTER TROUBLESHOOTING PROBLEM, ELECTED TO TURN OFF NON ESSENTIAL EQUIPMENT INCLUDING MODE C WHILE WITHIN 30 MILE VEIL.
Narrative: NOTICED HIGH AMMETER INDICATIONS (OVER VOLTAGE). AFTER TROUBLESHOOTING WITH NO CHANGE IN OVER VOLTAGE STATUS, I DECIDED TO TURN OFF ALL NONESSENTIAL ELECTRICAL EQUIP, INCLUDING MODE C XPONDER, EVEN THOUGH I WAS WITHIN THE PHX MODE C VEIL. I THEN CONTACTED SDL TWR AND ADVISED THAT I MAY LOSE ELECTRICAL PWR, INCLUDING POSSIBLE LOSS OF 2-WAY RADIO COMS. NO FURTHER ASSISTANCE WAS REQUIRED. THE REMAINDER OF THE FLT (AND LNDG) WAS UNEVENTFUL.
Data retrieved from NASA's ASRS site as of July 2007 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.