Narrative:

There was a fume event on the aircraft during the approach to ZZZ and the flight crew was not made aware of the event until after arriving at the gate. FA1 (flight attendant 1) smelled a strong musty odor in the forward galley when the gear was extended on the approach. FA4 and several passengers in the mid cabin smelled a strong rubbery odor. FA4 said that she first smelled it before the gear was extended. The odor dissipated after approximately 5 mins and no one required medical attention after landing. During the event; the fas discussed informing the flight crew with some deadheading pilots and they decided to wait to inform us until after landing since we were on the approach. I was the first officer (first officer) on the flight and I was first informed when around half of the passengers had already deplaned. The ca (captain) had already left to catch his flight home. I gathered information from the fas and two of the DH (deadheading) pilots. I called maintenance on the radio and wrote up the issue in the aml. After I had left the aircraft; I submitted a smoke; fume; & odor form and called maintenance control to verify that they received the form.crew communications -- the fas made the right decision to delay informing the flight crew about the fume event since we were on the approach; the fumes had dissipated with no corrective action; and none of the passengers or crew required medical attention. However; it would have been better if the flight crew had been informed of the event immediately after arriving at the gate.maybe there could be a discussion during flight attendant recurrent training about appropriate times to communicate events that happen during sterile flight deck periods.

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Original NASA ASRS Text

Title: A-321 First Officer reported being notified by Fight Attendant during passenger deplaning of a fume event which occurred during final approach. First Officer notified Maintenance; completed necessary documentation; and relayed information to Captain.

Narrative: There was a fume event on the aircraft during the approach to ZZZ and the flight crew was not made aware of the event until after arriving at the gate. FA1 (Flight Attendant 1) smelled a strong musty odor in the forward galley when the gear was extended on the approach. FA4 and several passengers in the mid cabin smelled a strong rubbery odor. FA4 said that she first smelled it before the gear was extended. The odor dissipated after approximately 5 mins and no one required medical attention after landing. During the event; the FAs discussed informing the flight crew with some deadheading pilots and they decided to wait to inform us until after landing since we were on the approach. I was the FO (First Officer) on the flight and I was first informed when around half of the passengers had already deplaned. The CA (Captain) had already left to catch his flight home. I gathered information from the FAs and two of the DH (deadheading) pilots. I called Maintenance on the radio and wrote up the issue in the AML. After I had left the aircraft; I submitted a Smoke; Fume; & Odor Form and called Maintenance Control to verify that they received the form.Crew communications -- The FAs made the right decision to delay informing the flight crew about the fume event since we were on the approach; the fumes had dissipated with no corrective action; and none of the passengers or crew required medical attention. However; it would have been better if the flight crew had been informed of the event immediately after arriving at the gate.Maybe there could be a discussion during FA recurrent training about appropriate times to communicate events that happen during sterile flight deck periods.

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.