Narrative:

[The aircraft] was ferried into ZZZ. We met the aircraft and swapped crews. Just prior to engine start; we brought up the hydraulic synoptic page as per aom. That's when we saw that the auxiliary hydraulic system reservoir indicated 92% (white) full and the right hydraulic system reservoir indicated 94% (white) full. The left system indicated 32% (green). This showed there had been fluid migration from the left system to the auxiliary and [the] right. I contacted maintenance control who had me stand by while they conference called [customer service]. [The] gentleman proceeded to get a mechanic on the line. After I told them my indications; they started explaining it was a known issue with challenger 300's; fluid migration and it can be transferred back. At that instant; [he] spoke up and said he was sending me the procedure. I thanked [customer service] and he ended the call. I was anticipating a copy or reference in the afm showing the steps to transfer the fluid. What I got was a bombardier document explaining the issue and how to transfer fluid. Also; a bombardier memo listing how to transfer from left; right; or auxiliary. None of the documents had afm procedure references. I called maintenance control back. I explained how I thought I was getting documents showing me in the afm where/how to accomplish the fluid transfer. I asked him if he could tell me where since we were already [a] late departure to get passengers. He told me he didn't know what was in the afm and couldn't give me a reference. So I sent in the discrepancy. If I'm wrong about this; please let me know! I understand if it's not in the afm; we can't do it. Memo's or 'tech sheets' don't count. Don't try to have crews accomplish procedures not FAA approved in the afm.

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Original NASA ASRS Text

Title: The Captain of a Bombardier CL-35 reported that he was asked to accomplish procedures NOT FAA approved in the AFM.

Narrative: [The aircraft] was ferried into ZZZ. We met the aircraft and swapped crews. Just prior to engine start; we brought up the Hydraulic Synoptic page as per AOM. That's when we saw that the AUX hydraulic system reservoir indicated 92% (white) full and the right hydraulic system reservoir indicated 94% (white) full. The left system indicated 32% (Green). This showed there had been fluid migration from the left system to the AUX and [the] right. I contacted Maintenance Control who had me stand by while they conference called [customer service]. [The] gentleman proceeded to get a mechanic on the line. After I told them my indications; they started explaining it was a known issue with Challenger 300's; fluid migration and it can be transferred back. At that instant; [he] spoke up and said he was sending me the procedure. I thanked [customer service] and he ended the call. I was anticipating a copy or reference in the AFM showing the steps to transfer the fluid. What I got was a Bombardier document explaining the issue and how to transfer fluid. Also; a Bombardier MEMO listing how to transfer from L; R; or AUX. None of the documents had AFM procedure references. I called Maintenance Control back. I explained how I thought I was getting documents showing me in the AFM where/how to accomplish the fluid transfer. I asked him if he could tell me where since we were already [a] late departure to get passengers. He told me he didn't know what was in the AFM and couldn't give me a reference. So I sent in the discrepancy. If I'm wrong about this; PLEASE let me know! I understand if it's not in the AFM; we can't do it. MEMO's or 'tech sheets' don't count. Don't try to have crews accomplish procedures NOT FAA approved in the AFM.

Data retrieved from NASA's ASRS site 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.