B737-800
Flight Crew Air Transport Pilot (ATP); Flight Crew Instrument; Flight Crew Multiengine
Aircraft Equipment Problem Less Severe; Deviation / Discrepancy - Procedural Maintenance; Deviation / Discrepancy - Procedural Published Material / Policy
Flight Crew Overcame Equipment Problem; General Maintenance Action
Procedure; Aircraft
Aircraft had maintenance accomplished 3 days earlier for the Captain's System Annunciator Panel being inoperative. During cruise flight; the center fuel tanks depleted and resulted in a correct Master Caution with an incorrect System Annunciator Panel indication of 'doors' instead of 'fuel.' Upon closer examination; I determined that the Captain's System Annunciator Panel had an FO (First Officer) System Annunciator Panel installed thus giving the incorrect indication. Everything worked as expected; but the System Annunciator Panel light cover had the incorrect part installed.Maintenance installed the wrong part. Multiple flight crews missed the error since the lights were working; but the wrong indications appeared. Maintenance needs to ensure right part is installed. Flight crews; including me; need to look more carefully at the specific System Annunciator Panel light indications when accomplishing the recall check.
B737 Captain reported Maintenance installing incorrect System Annunciator Panel; causing aircraft to fly several flights in an unairworthy condition.