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C172 pilot made an emergency landing on military base without contacting tower due to loss of radios from overloading the alternator capacity.
| Attributes | |
| ACN | 507160 |
| Time | |
| Date | 200104 |
| Day | Tue |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : bed.airport |
| State Reference | MA |
| Altitude | msl single value : 3000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Night |
| Aircraft 1 | |
| Operator | general aviation : personal |
| Make Model Name | Skyhawk 172/Cutlass 172 |
| Operating Under FAR Part | Part 91 |
| Flight Phase | descent : approach |
| Route In Use | arrival : vfr |
| Flight Plan | None |
| Person 1 | |
| Function | observation : passenger |
| Qualification | pilot : private |
| Experience | flight time last 90 days : 30 flight time total : 110 flight time type : 8 |
| ASRS Report | 507160 |
| Person 2 | |
| Affiliation | other |
| Function | flight crew : single pilot |
| Qualification | pilot : private |
| Experience | flight time last 90 days : 25 flight time total : 80 flight time type : 5 |
| ASRS Report | 507329 |
| Events | |
| Anomaly | aircraft equipment problem : critical other anomaly other |
| Independent Detector | aircraft equipment other aircraft equipment : high voltage warning light other flight crewa other flight crewb |
| Resolutory Action | flight crew : landed in emergency condition flight crew : diverted to another airport |
| Consequence | faa : reviewed incident with flight crew other |
| Supplementary | |
| Problem Areas | Aircraft |
| Primary Problem | Aircraft |
Narrative:
We were flying back to beverly, setting up to do a practice approach, when a circuit breaker popped and the high voltage light came on. I grabbed the poh and the emergency checklist. Within a few mins we began to lose our radios and all navaids. We followed the checklist and recycled the master switch but nothing happened. So now, with only flashlights, we searched for a place to land. Approximately 10 mi south was hanscom AFB (bedford airport) so we headed for the airport. As we began our descent, the engine was really rough and was coughing if pulled back to idle. We observed that no one was in the traffic pattern so we headed for the nearest runway. We landed on runway 11, taxied to FBO where massport came and picked us up. We spoke to the flight center, who was on their way, and the tower to explain what had happened.
Original NASA ASRS Text
Title: C172 PLT MADE AN EMER LNDG ON MIL BASE WITHOUT CONTACTING TWR DUE TO LOSS OF RADIOS FROM OVERLOADING THE ALTERNATOR CAPACITY.
Narrative: WE WERE FLYING BACK TO BEVERLY, SETTING UP TO DO A PRACTICE APCH, WHEN A CIRCUIT BREAKER POPPED AND THE HIGH VOLTAGE LIGHT CAME ON. I GRABBED THE POH AND THE EMER CHKLIST. WITHIN A FEW MINS WE BEGAN TO LOSE OUR RADIOS AND ALL NAVAIDS. WE FOLLOWED THE CHKLIST AND RECYCLED THE MASTER SWITCH BUT NOTHING HAPPENED. SO NOW, WITH ONLY FLASHLIGHTS, WE SEARCHED FOR A PLACE TO LAND. APPROX 10 MI S WAS HANSCOM AFB (BEDFORD ARPT) SO WE HEADED FOR THE ARPT. AS WE BEGAN OUR DSCNT, THE ENG WAS REALLY ROUGH AND WAS COUGHING IF PULLED BACK TO IDLE. WE OBSERVED THAT NO ONE WAS IN THE TFC PATTERN SO WE HEADED FOR THE NEAREST RWY. WE LANDED ON RWY 11, TAXIED TO FBO WHERE MASSPORT CAME AND PICKED US UP. WE SPOKE TO THE FLT CTR, WHO WAS ON THEIR WAY, AND THE TWR TO EXPLAIN WHAT HAD HAPPENED.
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.