Narrative:

During the taxi phase using 1 engine the APU was in use to supply bleed air to the air-conditioning packs. I noticed a bleed air light on the indicator light panel, so I turned the packs off, cycled the engine and APU/bleed air switches to extinguish the light. My intention was to turn the packs back on to see if I got the light again. Before I could do so, the captain called to start the other 2 engines and finish the delayed start and before takeoff checklists. I never mentioned the light to the captain. We finished the checklists, took the runway and I didn't think about the bleed air light again until I was driving home from work 8 hours later. Although it wasn't a safety of flight item for that takeoff, the light may have indicated a bad flow multiplier and should have been trouble-shot and entered into the aircraft log for maintenance to look at. The events that transpired taught me an important lesson about how items get forgotten in the push to move on to something else. In the future, when I am interrupted, I will verbalize to the other pilots what I am/was doing so as a team we can get it all done. This time a bleed air light, next time maybe something more serious -- an inexpensive lesson to be applied to all my flying in the future.

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Original NASA ASRS Text

Title: NO LOGBOOK ENTRY FOR BLEED AIR LIGHT.

Narrative: DURING THE TAXI PHASE USING 1 ENG THE APU WAS IN USE TO SUPPLY BLEED AIR TO THE AIR-CONDITIONING PACKS. I NOTICED A BLEED AIR LIGHT ON THE INDICATOR LIGHT PANEL, SO I TURNED THE PACKS OFF, CYCLED THE ENG AND APU/BLEED AIR SWITCHES TO EXTINGUISH THE LIGHT. MY INTENTION WAS TO TURN THE PACKS BACK ON TO SEE IF I GOT THE LIGHT AGAIN. BEFORE I COULD DO SO, THE CAPT CALLED TO START THE OTHER 2 ENGS AND FINISH THE DELAYED START AND BEFORE TKOF CHKLISTS. I NEVER MENTIONED THE LIGHT TO THE CAPT. WE FINISHED THE CHKLISTS, TOOK THE RWY AND I DIDN'T THINK ABOUT THE BLEED AIR LIGHT AGAIN UNTIL I WAS DRIVING HOME FROM WORK 8 HRS LATER. ALTHOUGH IT WASN'T A SAFETY OF FLT ITEM FOR THAT TKOF, THE LIGHT MAY HAVE INDICATED A BAD FLOW MULTIPLIER AND SHOULD HAVE BEEN TROUBLE-SHOT AND ENTERED INTO THE ACFT LOG FOR MAINT TO LOOK AT. THE EVENTS THAT TRANSPIRED TAUGHT ME AN IMPORTANT LESSON ABOUT HOW ITEMS GET FORGOTTEN IN THE PUSH TO MOVE ON TO SOMETHING ELSE. IN THE FUTURE, WHEN I AM INTERRUPTED, I WILL VERBALIZE TO THE OTHER PLTS WHAT I AM/WAS DOING SO AS A TEAM WE CAN GET IT ALL DONE. THIS TIME A BLEED AIR LIGHT, NEXT TIME MAYBE SOMETHING MORE SERIOUS -- AN INEXPENSIVE LESSON TO BE APPLIED TO ALL MY FLYING IN THE FUTURE.

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.