 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
A canadair CL65 in climb at FL230 had main battery charge indicating 99 amps. Normal indication 25 amps. Crew made a precautionary landing.
| Attributes | |
| ACN | 621677 |
| Time | |
| Date | 200406 |
| Day | Fri |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | navaid : djb.vortac |
| State Reference | OH |
| Altitude | msl single value : 23000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Dusk |
| Aircraft 1 | |
| Controlling Facilities | artcc : zob.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | Regional Jet CL65, Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | other other vortac |
| Flight Phase | climbout : intermediate altitude |
| Route In Use | departure sid : not stated |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp pilot : cfi |
| Experience | flight time last 90 days : 180 flight time total : 6110 flight time type : 3765 |
| ASRS Report | 621677 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Events | |
| Anomaly | aircraft equipment problem : critical |
| Independent Detector | aircraft equipment other aircraft equipment : ammeter other flight crewa other flight crewb |
| Resolutory Action | flight crew : landed as precaution flight crew : diverted to another airport |
| Consequence | other |
| Supplementary | |
| Problem Areas | Maintenance Human Performance Company Aircraft |
| Primary Problem | Aircraft |
Narrative:
During en route climb, the APU battery was indicating 99 amps (normal would be less than 5 amps). We called maintenance control and they believed that we 'probably' had an indication problem and not an actual over-amp situation. I asked how I could isolate the APU battery from the electrical system, and maintenance control said that they weren't allowed to tell me that information in-flight. Ok. So I decided to make a precautionary landing at cle and dispatch agreed. Callback conversation with reporter revealed the following information: the reporter stated the problem was actually an indication malfunction. The reporter said the ammeter, battery charger and battery were replaced.
Original NASA ASRS Text
Title: A CANADAIR CL65 IN CLB AT FL230 HAD MAIN BATTERY CHARGE INDICATING 99 AMPS. NORMAL INDICATION 25 AMPS. CREW MADE A PRECAUTIONARY LNDG.
Narrative: DURING ENRTE CLB, THE APU BATTERY WAS INDICATING 99 AMPS (NORMAL WOULD BE LESS THAN 5 AMPS). WE CALLED MAINT CTL AND THEY BELIEVED THAT WE 'PROBABLY' HAD AN INDICATION PROB AND NOT AN ACTUAL OVER-AMP SIT. I ASKED HOW I COULD ISOLATE THE APU BATTERY FROM THE ELECTRICAL SYS, AND MAINT CTL SAID THAT THEY WEREN'T ALLOWED TO TELL ME THAT INFO INFLT. OK. SO I DECIDED TO MAKE A PRECAUTIONARY LNDG AT CLE AND DISPATCH AGREED. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE RPTR STATED THE PROB WAS ACTUALLY AN INDICATION MALFUNCTION. THE RPTR SAID THE AMMETER, BATTERY CHARGER AND BATTERY WERE REPLACED.
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.