|37000 Feet||Browse and search NASA's
Aviation Safety Reporting System
|Local Time Of Day||0601 To 1200|
|Locale Reference||airport : sdm|
|Altitude||agl bound lower : 0|
agl bound upper : 0
|Controlling Facilities||tower : sdm|
artcc : zdv
|Make Model Name||Small Aircraft, High Wing, 1 Eng, Fixed Gear|
|Flight Phase||cruise other|
ground : preflight
|Function||flight crew : single pilot|
|Qualification||pilot : commercial|
pilot : instrument
|Experience||flight time last 90 days : 13|
flight time total : 360
flight time type : 260
|Affiliation||government : faa|
|Function||controller : local|
|Qualification||controller : non radar|
|Anomaly||aircraft equipment problem : less severe|
non adherence : far
non adherence : clearance
|Independent Detector||other flight crewa|
|Resolutory Action||none taken : unable|
|Air Traffic Incident||other|
Aircraft was to be moved from sdm to see for state disaster relief exercise. Upon preflight, battery was discovered dead. Battery was recharged for about 30 mins. Aircraft started with slight ammeter charge showing. Maintenance advised battery would be charged sufficiently upon arrival at see (about 30 mins from engine start). Upon check-in with see tower, radio very faint. Received clearance to land. Flaps would not deploy. Advised see tower of loss of electrical and return to sdm. Received very faint acknowledgement. Returned to sdm with no electrical. Entered air traffic area rocking wings. Flew pattern at 500 ft. Received light signals and landed. Relatively busy saturday -- several aircraft in closed traffic. Tower cleared everyone out very efficiently. Upon teardown, maintenance discovered alternator barely trickling power -- insufficient to charge battery. Desire to get to exercise got in way of good sense. Next time faced with dead battery, will not takeoff without complete check of aircraft charging system. If the battery is dead, there's a reason.
Original NASA ASRS Text
Title: SMA BECOMES NORDO ACFT WHEN ELECTRICAL SYS FAILS.
Narrative: ACFT WAS TO BE MOVED FROM SDM TO SEE FOR STATE DISASTER RELIEF EXERCISE. UPON PREFLT, BATTERY WAS DISCOVERED DEAD. BATTERY WAS RECHARGED FOR ABOUT 30 MINS. ACFT STARTED WITH SLIGHT AMMETER CHARGE SHOWING. MAINT ADVISED BATTERY WOULD BE CHARGED SUFFICIENTLY UPON ARR AT SEE (ABOUT 30 MINS FROM ENG START). UPON CHK-IN WITH SEE TWR, RADIO VERY FAINT. RECEIVED CLRNC TO LAND. FLAPS WOULD NOT DEPLOY. ADVISED SEE TWR OF LOSS OF ELECTRICAL AND RETURN TO SDM. RECEIVED VERY FAINT ACKNOWLEDGEMENT. RETURNED TO SDM WITH NO ELECTRICAL. ENTERED ATA ROCKING WINGS. FLEW PATTERN AT 500 FT. RECEIVED LIGHT SIGNALS AND LANDED. RELATIVELY BUSY SATURDAY -- SEVERAL ACFT IN CLOSED TFC. TWR CLRED EVERYONE OUT VERY EFFICIENTLY. UPON TEARDOWN, MAINT DISCOVERED ALTERNATOR BARELY TRICKLING PWR -- INSUFFICIENT TO CHARGE BATTERY. DESIRE TO GET TO EXERCISE GOT IN WAY OF GOOD SENSE. NEXT TIME FACED WITH DEAD BATTERY, WILL NOT TKOF WITHOUT COMPLETE CHK OF ACFT CHARGING SYS. IF THE BATTERY IS DEAD, THERE'S A REASON.
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.