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37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
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Pilot of an small transport twin lost electrical power shortly after departure on an IFR flight plan resulting in diverting to land in VFR conditions. Problem was determined to be the right engine alternator fuse disconnect which caused the left to disconnect due to an overload with air-conditioning on.
| Attributes | |
| ACN | 377483 |
| Time | |
| Date | 199708 |
| Day | Thu |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : jvy airport : sdf |
| State Reference | KY |
| Altitude | msl bound lower : 5000 msl bound upper : 5000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : sdf |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Operating Under FAR Part | other : unknown |
| Flight Phase | cruise other other other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : single pilot |
| Qualification | other other : other pilot : cfi pilot : commercial pilot : instrument |
| Experience | flight time last 90 days : 150 flight time total : 12000 flight time type : 500 |
| ASRS Report | 377483 |
| Person 2 | |
| Affiliation | government : faa |
| Function | controller : departure |
| Qualification | controller : radar |
| Events | |
| Anomaly | aircraft equipment problem : critical other anomaly other |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified other flight crewa |
| Resolutory Action | flight crew : declared emergency other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Aircraft |
Narrative:
Alternator field fuse vibrated out on right alternator. Air- conditioner caused left alternator to go off line, but could not carry air-conditioner load. Lost radio and navigation. VFR. Diverted to jeffersonville, in, and landed. Called ATC and explained, no problem. Replaced fuse. Everything worked. Aircraft airworthy and continued to fly.
Original NASA ASRS Text
Title: PLT OF AN SMT TWIN LOST ELECTRICAL PWR SHORTLY AFTER DEP ON AN IFR FLT PLAN RESULTING IN DIVERTING TO LAND IN VFR CONDITIONS. PROB WAS DETERMINED TO BE THE R ENG ALTERNATOR FUSE DISCONNECT WHICH CAUSED THE L TO DISCONNECT DUE TO AN OVERLOAD WITH AIR-CONDITIONING ON.
Narrative: ALTERNATOR FIELD FUSE VIBRATED OUT ON R ALTERNATOR. AIR- CONDITIONER CAUSED L ALTERNATOR TO GO OFF LINE, BUT COULD NOT CARRY AIR-CONDITIONER LOAD. LOST RADIO AND NAV. VFR. DIVERTED TO JEFFERSONVILLE, IN, AND LANDED. CALLED ATC AND EXPLAINED, NO PROB. REPLACED FUSE. EVERYTHING WORKED. ACFT AIRWORTHY AND CONTINUED TO FLY.
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.