Narrative:

Received aircraft in ZZZ with problem with 'pitot/stall heat fail' annunciator light coming on in-flight. Maintenance changed full annunciator panel. Ran all checklists, tested panel, found all lights and blanks lighting normally. We focused on the pitot heat warning which seemed fine. Maintenance gave us logbook, door was closed, and flight proceeded to bwi without any apparent problem. First sign of trouble was first light to come on at gate was the aft cabin door open, but did not pursue it, as I thought they may have opened it for some kind of service. I went inside and got bogged down trying to get a copy of flight plan/release for the next flight. When I finally got back to the aircraft, I noted a light on indicating the electrical equipment bay door was open. I thought they were still working on the pitot heat problem, but I went down and found the door closed. I checked it again and went up and found the same light on. The captain trainee (also a check pilot) went down and tried cycling it himself. I finally realized that there were several lights were in error and then realized that maintenance had put a DC9-30 panel into an MD80. Several calls confirmed an improper part. We ended up stuck for almost 7 hours before a good panel was replaced. We felt bad not catching this in-flight, but we pushed to test, got all lights illuminated. The doors were closed and with no lights on we could not see a problem. In the future, I suppose we will have to check that the individual lights are correctly located. We were diverted by the pitot heat write-up and did not realize another problem could develop. I will try to practice more vigilance.

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Original NASA ASRS Text

Title: AN MD80 WAS DISPATCHED IN NON COMPLIANCE WITH THE INCORRECT COCKPIT OVERHEAD ANNUNCIATOR LIGHT PANEL INSTALLED.

Narrative: RECEIVED ACFT IN ZZZ WITH PROB WITH 'PITOT/STALL HEAT FAIL' ANNUNCIATOR LIGHT COMING ON INFLT. MAINT CHANGED FULL ANNUNCIATOR PANEL. RAN ALL CHKLISTS, TESTED PANEL, FOUND ALL LIGHTS AND BLANKS LIGHTING NORMALLY. WE FOCUSED ON THE PITOT HEAT WARNING WHICH SEEMED FINE. MAINT GAVE US LOGBOOK, DOOR WAS CLOSED, AND FLT PROCEEDED TO BWI WITHOUT ANY APPARENT PROB. FIRST SIGN OF TROUBLE WAS FIRST LIGHT TO COME ON AT GATE WAS THE AFT CABIN DOOR OPEN, BUT DID NOT PURSUE IT, AS I THOUGHT THEY MAY HAVE OPENED IT FOR SOME KIND OF SVC. I WENT INSIDE AND GOT BOGGED DOWN TRYING TO GET A COPY OF FLT PLAN/RELEASE FOR THE NEXT FLT. WHEN I FINALLY GOT BACK TO THE ACFT, I NOTED A LIGHT ON INDICATING THE ELECTRICAL EQUIP BAY DOOR WAS OPEN. I THOUGHT THEY WERE STILL WORKING ON THE PITOT HEAT PROB, BUT I WENT DOWN AND FOUND THE DOOR CLOSED. I CHKED IT AGAIN AND WENT UP AND FOUND THE SAME LIGHT ON. THE CAPT TRAINEE (ALSO A CHK PLT) WENT DOWN AND TRIED CYCLING IT HIMSELF. I FINALLY REALIZED THAT THERE WERE SEVERAL LIGHTS WERE IN ERROR AND THEN REALIZED THAT MAINT HAD PUT A DC9-30 PANEL INTO AN MD80. SEVERAL CALLS CONFIRMED AN IMPROPER PART. WE ENDED UP STUCK FOR ALMOST 7 HRS BEFORE A GOOD PANEL WAS REPLACED. WE FELT BAD NOT CATCHING THIS INFLT, BUT WE PUSHED TO TEST, GOT ALL LIGHTS ILLUMINATED. THE DOORS WERE CLOSED AND WITH NO LIGHTS ON WE COULD NOT SEE A PROB. IN THE FUTURE, I SUPPOSE WE WILL HAVE TO CHK THAT THE INDIVIDUAL LIGHTS ARE CORRECTLY LOCATED. WE WERE DIVERTED BY THE PITOT HEAT WRITE-UP AND DID NOT REALIZE ANOTHER PROB COULD DEVELOP. I WILL TRY TO PRACTICE MORE VIGILANCE.

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.