Narrative:

During the prestart check, it was discovered 2 segment lights on the annunciator panel were mislabeled (engine #1 and engine #2 chip turbine). Both mechanics X and Y were notified and proceeded to observe, discuss, suggest both cause/effect of the system and time frame to repair. Initially, Y indicated that since the aircraft was just washed, that perhaps the wires were wet, however, I strongly suggested that this was not the root cause. Mechanics X and Y both stated that the engine chip light system was functioning properly, and that apparently the 2 engine turbine chip segment lights on the caution panel were not labeled correctly. Additionally, we discussed the third segment light that was mislabeled, transmission oil pressure. Again mechanic Y stated that the pressure transmission indicating system and segment light was functioning properly as we confirmed by turning up the aircraft and xchking the pressure gauge. Both mechanics and I discussed the impending insvc, and the discrepancies. We mutually agreed that taking the aircraft at this time would not be a safety of flight issue or materially effect that aircraft. Additionally, during my absence they would research the availability of the correct cubes. During the insvc, we were dispatched to a call. I proceeded to notify our mechanics through dispatch of my impending delay back to base. Base mechanics replied through dispatch that they would follow up the next day. Upon my return to base, the on-call mechanic was already there. We proceeded to put the aircraft on delay and subsequently OTS while he troubleshot the system. Mechanic Z confirmed that the chip light system was functioning properly, that apparently the segment lights were mislabeled. Mechanic Z proceeded to re-label. This was pointed out numerous times to both mechanics, orally and in the form of a written list. Their reply was that the new panel was the correct part number and that they would research the problem. However, I did not specifically point out that the cube was mislabeled and should have read transmission oil. In hindsight, after discovering the mislabeled segment cubes, I should have put the aircraft OTS. There is no excuse or any mitigating factors as to why it took so long for me to discover the mislabeled segment lights. However, at the start of every shift, there is accomplished a very comprehensive exterior and interior check, followed by prestart and start checklist. Part of the checklist is the annunciator test switch which illuminates all segment lights and the chip light integrity check which illuminates the 4 gear/turbine lights on the annunciator panel. Normally, I do not read every segment light on a test. However, I am re-examining my visual and mental check procedures thus preventing this type of lapse.

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Original NASA ASRS Text

Title: A BELL 222B WAS DISPATCHED IN NON COMPLIANCE WITH ENG CHIP DETECTOR AND XMISSION OIL PRESSURE WARNING LIGHTS INOP AND NO LOGBOOK ENTRY.

Narrative: DURING THE PRESTART CHK, IT WAS DISCOVERED 2 SEGMENT LIGHTS ON THE ANNUNCIATOR PANEL WERE MISLABELED (ENG #1 AND ENG #2 CHIP TURBINE). BOTH MECHS X AND Y WERE NOTIFIED AND PROCEEDED TO OBSERVE, DISCUSS, SUGGEST BOTH CAUSE/EFFECT OF THE SYS AND TIME FRAME TO REPAIR. INITIALLY, Y INDICATED THAT SINCE THE ACFT WAS JUST WASHED, THAT PERHAPS THE WIRES WERE WET, HOWEVER, I STRONGLY SUGGESTED THAT THIS WAS NOT THE ROOT CAUSE. MECHS X AND Y BOTH STATED THAT THE ENG CHIP LIGHT SYS WAS FUNCTIONING PROPERLY, AND THAT APPARENTLY THE 2 ENG TURBINE CHIP SEGMENT LIGHTS ON THE CAUTION PANEL WERE NOT LABELED CORRECTLY. ADDITIONALLY, WE DISCUSSED THE THIRD SEGMENT LIGHT THAT WAS MISLABELED, XMISSION OIL PRESSURE. AGAIN MECH Y STATED THAT THE PRESSURE XMISSION INDICATING SYS AND SEGMENT LIGHT WAS FUNCTIONING PROPERLY AS WE CONFIRMED BY TURNING UP THE ACFT AND XCHKING THE PRESSURE GAUGE. BOTH MECHS AND I DISCUSSED THE IMPENDING INSVC, AND THE DISCREPANCIES. WE MUTUALLY AGREED THAT TAKING THE ACFT AT THIS TIME WOULD NOT BE A SAFETY OF FLT ISSUE OR MATERIALLY EFFECT THAT ACFT. ADDITIONALLY, DURING MY ABSENCE THEY WOULD RESEARCH THE AVAILABILITY OF THE CORRECT CUBES. DURING THE INSVC, WE WERE DISPATCHED TO A CALL. I PROCEEDED TO NOTIFY OUR MECHS THROUGH DISPATCH OF MY IMPENDING DELAY BACK TO BASE. BASE MECHS REPLIED THROUGH DISPATCH THAT THEY WOULD FOLLOW UP THE NEXT DAY. UPON MY RETURN TO BASE, THE ON-CALL MECH WAS ALREADY THERE. WE PROCEEDED TO PUT THE ACFT ON DELAY AND SUBSEQUENTLY OTS WHILE HE TROUBLESHOT THE SYS. MECH Z CONFIRMED THAT THE CHIP LIGHT SYS WAS FUNCTIONING PROPERLY, THAT APPARENTLY THE SEGMENT LIGHTS WERE MISLABELED. MECH Z PROCEEDED TO RE-LABEL. THIS WAS POINTED OUT NUMEROUS TIMES TO BOTH MECHS, ORALLY AND IN THE FORM OF A WRITTEN LIST. THEIR REPLY WAS THAT THE NEW PANEL WAS THE CORRECT PART NUMBER AND THAT THEY WOULD RESEARCH THE PROB. HOWEVER, I DID NOT SPECIFICALLY POINT OUT THAT THE CUBE WAS MISLABELED AND SHOULD HAVE READ XMISSION OIL. IN HINDSIGHT, AFTER DISCOVERING THE MISLABELED SEGMENT CUBES, I SHOULD HAVE PUT THE ACFT OTS. THERE IS NO EXCUSE OR ANY MITIGATING FACTORS AS TO WHY IT TOOK SO LONG FOR ME TO DISCOVER THE MISLABELED SEGMENT LIGHTS. HOWEVER, AT THE START OF EVERY SHIFT, THERE IS ACCOMPLISHED A VERY COMPREHENSIVE EXTERIOR AND INTERIOR CHK, FOLLOWED BY PRESTART AND START CHKLIST. PART OF THE CHKLIST IS THE ANNUNCIATOR TEST SWITCH WHICH ILLUMINATES ALL SEGMENT LIGHTS AND THE CHIP LIGHT INTEGRITY CHK WHICH ILLUMINATES THE 4 GEAR/TURBINE LIGHTS ON THE ANNUNCIATOR PANEL. NORMALLY, I DO NOT READ EVERY SEGMENT LIGHT ON A TEST. HOWEVER, I AM RE-EXAMINING MY VISUAL AND MENTAL CHK PROCS THUS PREVENTING THIS TYPE OF LAPSE.

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.