After losing their dc emergency bus the flight crew of an md-82 restored alternative to power to the...

Narrative:

Shortly after gear retraction; the master warning illuminated; bringing our attention to the dc emergency bus off annunciator. Secondary indications (such as loss of comm #1 and certain engine instruments) confirmed that the dc emergency bus had indeed lost power. After configuring for the climb; I took the radios and the first officer performed the QRH procedure. This procedure called for checking circuit breakers which did not restore the bus; but we were able to power the bus with the emergency power switch (as directed by the QRH).we contacted dispatch and maintenance control who agreed that an an air return was necessary. We requested a level off from ATC and advised that we would be returning to ZZZ but were not declaring an emergency at that time. After performing all applicable checklists; we advised the crew and passengers of our return. We landed normally and taxied to the gate.

Original NASA ASRS Text

Title: After losing their DC Emergency Bus the flight crew of an MD-82 restored alternative to power to the bus via the QRH and then returned uneventfully to their departure airport for maintenance.

Narrative: Shortly after gear retraction; the Master Warning illuminated; bringing our attention to the DC EMER BUS OFF annunciator. Secondary indications (such as loss of COMM #1 and certain engine instruments) confirmed that the DC Emergency Bus had indeed lost power. After configuring for the climb; I took the radios and the First Officer performed the QRH procedure. This procedure called for checking circuit breakers which did not restore the bus; but we were able to power the bus with the EMER POWER switch (as directed by the QRH).We contacted Dispatch and Maintenance Control who agreed that an an air return was necessary. We requested a level off from ATC and advised that we would be returning to ZZZ but were not declaring an emergency at that time. After performing all applicable checklists; we advised the crew and passengers of our return. We landed normally and taxied to the gate.

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.

Attributes
ACN	910125
Time
Date	201009
Local Time Of Day	0601-1200
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	MD-82
Operating Under FAR Part	Part 121
Flight Phase	Initial Climb
Flight Plan	IFR
Component
Aircraft Component	DC Generation
Person 1
Function	Captain Pilot Flying
Qualification	Flight Crew Air Transport Pilot (ATP)
Events
Anomaly	Aircraft Equipment Problem Critical

After losing their dc emergency bus the flight crew of an md-82 restored alternative to power to the bus via the QRH and then returned uneventfully to their departure airport for maintenance.