Narrative:

In my case [on two separate incidents] the solution [the company] applied to an oily fumes event was to address the source of the oil leak; then change the cabin ozone filters. From what I can tell; no effort was made in either case to clean the ducts through what airbus calls a 'pack burn.'I attended [an industry safety forum] and the manufacturer of pack filters was there. He said the original filter is not designed to filter out oily fumes. They have a version available that does that; same part number; no stc required; that contains a carbon filter element.so what [the company] is doing; then; is temporarily covering up the oil fumes until it saturates & overcomes the new filters. I believe this may have; in part; contributed to fume events I had on the ground; at the gate.I am not completely sure about the oil-saturated filter theory because one of them also involved over-servicing of the APU oil. But in all three cases; heavy rain immediately preceded the fume event. I believe in some cases; oil was already in the packs & filters; but in 'nooks and crannies' and was released when the air density became much heavier almost immediately with the advent of the heavy rain.anyway; I am concerned that due to lack of cleaning ('pack burns'); we are continuing to subject crews and passengers to continuous low-doses of oil fumes (known carcinogen); and then also large doses during fume events.

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Original NASA ASRS Text

Title: A320 Captain reported that after an oil smell in the cabin report; there was no effort to clean the pneumatic ducts.

Narrative: In my case [on two separate incidents] the solution [the company] applied to an oily fumes event was to address the source of the oil leak; then change the cabin ozone filters. From what I can tell; no effort was made in either case to clean the ducts through what Airbus calls a 'pack burn.'I attended [an industry safety forum] and the manufacturer of pack filters was there. He said the original filter is not designed to filter out oily fumes. They have a version available that does that; same part number; no STC required; that contains a carbon filter element.So what [the company] is doing; then; is temporarily covering up the oil fumes until it saturates & overcomes the new filters. I believe this may have; in part; contributed to fume events I had on the ground; at the gate.I am not completely sure about the oil-saturated filter theory because one of them also involved over-servicing of the APU oil. But in all three cases; heavy rain immediately preceded the fume event. I believe in some cases; oil was already in the packs & filters; but in 'nooks and crannies' and was released when the air density became much heavier almost immediately with the advent of the heavy rain.Anyway; I am concerned that due to lack of cleaning ('pack burns'); we are continuing to subject crews and passengers to continuous low-doses of oil fumes (known carcinogen); and then also large doses during fume events.

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.