Aircraft equipment problem #2 compass system failure, plus, dual flight director failure.

Attributes
ACN	314875
Time
Date	199509
Day	Sun
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : ewr
State Reference	NJ
Altitude	agl bound lower : 200 agl bound upper : 200
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : n90
Operator	common carrier : air carrier
Make Model Name	Commercial Fixed Wing
Operating Under FAR Part	Part 121
Navigation In Use	Other Other
Flight Phase	climbout : initial
Route In Use	enroute : direct
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : flight engineer pilot : atp
Experience	flight time last 90 days : 190 flight time total : 4500 flight time type : 800
ASRS Report	314975
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 150 flight time total : 17000 flight time type : 3000
ASRS Report	314945
Events
Anomaly	aircraft equipment problem : less severe other anomaly other other spatial deviation
Independent Detector	aircraft equipment other aircraft equipment : unspecified other flight crewa
Resolutory Action	controller : issued new clearance flight crew : became reoriented flight crew : overcame equipment problem
Consequence	faa : reviewed incident with flight crew
Supplementary
Primary Problem	Aircraft
Air Traffic Incident	other

Narrative:

At liftoff, a heading disagreement light illuminated and loss of both flight directors occurred. We were VMC and turned to what we thought was our assigned heading. Heading select, VNAV, LNAV, flight director, and autoplt modes did not work. Captain's compass seemed correct. ATC gave us headings and we notified the controller of our compass problem. We received clearance to overfly a VOR and go outbound on a radial to confirm which compass was correct. Captain's system was ok. Continued flight using #1 compass system. WX was VMC entire flight.

Original NASA ASRS Text

Title: ACFT EQUIP PROB #2 COMPASS SYS FAILURE, PLUS, DUAL FLT DIRECTOR FAILURE.

Narrative: AT LIFTOFF, A HDG DISAGREEMENT LIGHT ILLUMINATED AND LOSS OF BOTH FLT DIRECTORS OCCURRED. WE WERE VMC AND TURNED TO WHAT WE THOUGHT WAS OUR ASSIGNED HDG. HDG SELECT, VNAV, LNAV, FLT DIRECTOR, AND AUTOPLT MODES DID NOT WORK. CAPT'S COMPASS SEEMED CORRECT. ATC GAVE US HDGS AND WE NOTIFIED THE CTLR OF OUR COMPASS PROB. WE RECEIVED CLRNC TO OVERFLY A VOR AND GO OUTBOUND ON A RADIAL TO CONFIRM WHICH COMPASS WAS CORRECT. CAPT'S SYS WAS OK. CONTINUED FLT USING #1 COMPASS SYS. WX WAS VMC ENTIRE FLT.

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.