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During climb a MD80 flight director; autopilot; autothrottles and flight management annunciators became unpowered. On advice from maintenance; the emergency power switch was cycled after which all systems returned to normal.
| Attributes | |
| ACN | 925157 |
| Time | |
| Date | 201012 |
| Local Time Of Day | 1201-1800 |
| Place | |
| Locale Reference | ZZZ.ARTCC |
| State Reference | US |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | MD-83 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Climb |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | Electrical Distribution Busbar |
| Person 1 | |
| Function | Captain Pilot Not Flying |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Person 2 | |
| Function | First Officer Pilot Flying |
| Events | |
| Anomaly | Aircraft Equipment Problem Less Severe Deviation - Procedural Maintenance |
Narrative:
On climb; [we] lost flight director; autopilot; autothrottles; and all flight management annunciators. We hand flew aircraft and informed ATC we were slant a; and descended to non-rvsm altitude. I contacted dispatch and was patched to maintenance control. I was advised by maintenance control shortly thereafter to cycle the emergency power switch as a attempt to restore the system. After switching on/off; all systems were restored. No further problems were noted. Returned to slant west with ATC. I felt attempting the procedure suggested by maintenance was less of a threat than diverting into poor weather hand flying a raw data approach.
Original NASA ASRS Text
Title: During climb a MD80 flight director; autopilot; autothrottles and flight management annunciators became unpowered. On advice from Maintenance; the Emergency Power Switch was cycled after which all systems returned to normal.
Narrative: On climb; [we] lost flight director; autopilot; autothrottles; and all flight management annunciators. We hand flew aircraft and informed ATC we were slant A; and descended to non-RVSM altitude. I contacted Dispatch and was patched to Maintenance Control. I was advised by Maintenance Control shortly thereafter to cycle the Emergency Power switch as a attempt to restore the system. After switching ON/OFF; all systems were restored. No further problems were noted. Returned to slant W with ATC. I felt attempting the procedure suggested by Maintenance was less of a threat than diverting into poor weather hand flying a raw data approach.
Data retrieved from NASA's ASRS site as of April 2012 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.