Potential conflict created by aircraft equipment problem.

Attributes
ACN	293952
Time
Date	199501
Day	Mon
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : phx
State Reference	AZ
Altitude	msl bound lower : 4000 msl bound upper : 4000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : phx
Operator	common carrier : air carrier
Make Model Name	B757 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Navigation In Use	Other Other
Flight Phase	descent : approach other
Route In Use	approach : visual
Flight Plan	IFR
Aircraft 2
Operator	common carrier : air carrier
Make Model Name	DC-10 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Navigation In Use	Other
Flight Phase	descent : approach
Route In Use	approach : straight in
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Experience	flight time last 90 days : 145 flight time total : 9800 flight time type : 1500
ASRS Report	293952
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 210 flight time total : 21000 flight time type : 1500
ASRS Report	294077
Events
Anomaly	aircraft equipment problem : less severe conflict : airborne less severe non adherence : clearance non adherence : far other spatial deviation
Independent Detector	other controllera
Resolutory Action	other
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Right after takeoff a caution light was displayed on the upper CRT 'right forward entrance door.' as a precaution the decision was made to return to the field. Departure was advised. We were given clearance to climb to 4000 ft and a right turn, vectors for downwind. A frequency change was made. This next controller asked if we had the airport in sight. We said 'affirmative' and then we thought the controller cleared us for a visual approach to runway 26L. During our base to final turn the controller asked if we had a dc-10 in sight. We said 'yes' however, the controller had to vector the aircraft to give him spacing behind us. There was some confusion as to whether we had been cleared for the approach. We did not realize there was a possible conflict with air carrier. We were then turned over to tower and made an uneventful landing.

Original NASA ASRS Text

Title: POTENTIAL CONFLICT CREATED BY ACFT EQUIP PROB.

Narrative: RIGHT AFTER TKOF A CAUTION LIGHT WAS DISPLAYED ON THE UPPER CRT 'R FORWARD ENTRANCE DOOR.' AS A PRECAUTION THE DECISION WAS MADE TO RETURN TO THE FIELD. DEP WAS ADVISED. WE WERE GIVEN CLRNC TO CLB TO 4000 FT AND A R TURN, VECTORS FOR DOWNWIND. A FREQ CHANGE WAS MADE. THIS NEXT CTLR ASKED IF WE HAD THE ARPT IN SIGHT. WE SAID 'AFFIRMATIVE' AND THEN WE THOUGHT THE CTLR CLRED US FOR A VISUAL APCH TO RWY 26L. DURING OUR BASE TO FINAL TURN THE CTLR ASKED IF WE HAD A DC-10 IN SIGHT. WE SAID 'YES' HOWEVER, THE CTLR HAD TO VECTOR THE ACFT TO GIVE HIM SPACING BEHIND US. THERE WAS SOME CONFUSION AS TO WHETHER WE HAD BEEN CLRED FOR THE APCH. WE DID NOT REALIZE THERE WAS A POSSIBLE CONFLICT WITH ACR. WE WERE THEN TURNED OVER TO TWR AND MADE AN UNEVENTFUL LNDG.

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.