MD80 flight crew diverts to dfw with multiple flight instrument failures.

Attributes
ACN	442572
Time
Date	199907
Day	Mon
Local Time Of Day	1801 To 2400
Place
Locale Reference	navaid : byp.vortac
State Reference	TX
Altitude	msl single value : 31000
Environment
Light	Night
Aircraft 1
Controlling Facilities	artcc : zfw.artcc
Operator	common carrier : air carrier
Make Model Name	MD-80 Super 80
Operating Under FAR Part	Part 121
Flight Phase	cruise : level
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
ASRS Report	442572
Person 2
Affiliation	government : faa
Function	flight crew : first officer
Qualification	pilot : instrument pilot : commercial pilot : multi engine
Events
Anomaly	aircraft equipment problem : critical
Independent Detector	other flight crewa other flight crewb
Resolutory Action	controller : issued new clearance flight crew : landed in emergency condition flight crew : diverted to another airport flight crew : declared emergency other
Consequence	other
Supplementary
Problem Areas	Aircraft
Primary Problem	Aircraft
Air Traffic Incident	other

Narrative:

During flight from bna to lax I lost the #2 compass system. After discussion with dispatch, we decided not to divert for this one problem. After approximately 30 mins we started to lose other system, ie, autoplt and flight director. At this time I diverted into dfw. An emergency was declared for an overweight landing. The landing was smooth. Appropriate logbook entries were made and flight crew and attendants continued to lax on another aircraft.

Original NASA ASRS Text

Title: MD80 FLC DIVERTS TO DFW WITH MULTIPLE FLT INST FAILURES.

Narrative: DURING FLT FROM BNA TO LAX I LOST THE #2 COMPASS SYS. AFTER DISCUSSION WITH DISPATCH, WE DECIDED NOT TO DIVERT FOR THIS ONE PROB. AFTER APPROX 30 MINS WE STARTED TO LOSE OTHER SYS, IE, AUTOPLT AND FLT DIRECTOR. AT THIS TIME I DIVERTED INTO DFW. AN EMER WAS DECLARED FOR AN OVERWT LNDG. THE LNDG WAS SMOOTH. APPROPRIATE LOGBOOK ENTRIES WERE MADE AND FLC AND ATTENDANTS CONTINUED TO LAX ON ANOTHER ACFT.

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.