Narrative:

Incorrect altimeter setting issued by ATC and broadcast on ZZZ ATIS resulting in low altitude alert. Descending on the ZZZZZ1 into ZZZ; we were issued a descent below FL180 by center and advised the local altimeter setting was 30.56 which both pilots set during the in range checklist. I (PF) had listened to ATIS and noted that it was advising runway 05 in use; altimeter setting 30.51. We were handed off to the app controller who cleared us direct if for the ILS 05; cross at or above 2;100 feet; cleared ILS05 approach. No mention of the altimeter setting. Around 5 or 6 thousand feet; outside of if and on a good descent profile; I asked the pm to confirm the altimeter. Again; we were issued 30.51. Just prior to if and approaching 2;100 feet MSL (on the wrong altimeter setting) we were asked by approach about our altitude as they received a 'low altitude alert' for us. We asked again what the local altimeter setting was and this time told 29.51. This resulted in a 1;000 foot difference. We climbed up to 1;600 feet as we were now inside if and intercepted the glide slope at (FAF) and landed uneventfully.on the ground we established with tower that they had indeed made the error on both ATIS and our inquiry with approach. He didn't know what local altimeter center was issuing. I suspect the older ATIS.it's worth noting that the number 1 radalt was deferred (captain's side) and while not a causal factor; I believe it degraded my situational awareness in the terminal area. This deferral requires the captain to select the number 2 FD on the instrument switching panel and mx to pull and collar the number 1 RA circuit breaker. Somehow; while selecting land and cleared for the approach; I noticed the switching light no longer lit so I had no radar altitude displayed on my pfd. I reselected the 'first officer's FD' and then saw the radalt altitude at 1;025...this all happened at the same time approach was querying our altitude. We immediately climbed.

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Original NASA ASRS Text

Title: A300 Captain reported an altitude deviation due to an incorrect altimeter setting provided on ATIS.

Narrative: Incorrect Altimeter setting issued by ATC and broadcast on ZZZ ATIS resulting in Low Altitude Alert. Descending on the ZZZZZ1 into ZZZ; we were issued a descent below FL180 by Center and advised the local altimeter setting was 30.56 which both pilots set during the In Range Checklist. I (PF) had listened to ATIS and noted that it was advising Runway 05 in use; Altimeter Setting 30.51. We were handed off to the APP controller who cleared us direct IF for the ILS 05; cross at or above 2;100 feet; cleared ILS05 Approach. No mention of the altimeter setting. Around 5 or 6 thousand feet; outside of IF and on a good descent profile; I asked the PM to confirm the altimeter. Again; we were issued 30.51. Just prior to IF and approaching 2;100 feet MSL (on the wrong altimeter setting) we were asked by approach about our altitude as they received a 'low altitude alert' for us. We asked again what the local altimeter setting was and this time told 29.51. This resulted in a 1;000 foot difference. We climbed up to 1;600 feet as we were now inside IF and intercepted the Glide Slope at (FAF) and landed uneventfully.On the ground we established with Tower that they had indeed made the error on both ATIS and our inquiry with Approach. He didn't know what local altimeter Center was issuing. I suspect the older ATIS.It's worth noting that the Number 1 RadAlt was deferred (Captain's side) and while not a causal factor; I believe it degraded my Situational Awareness in the terminal area. This deferral requires the Captain to select the Number 2 FD on the Instrument Switching panel and MX to pull and collar the Number 1 RA CB. Somehow; while selecting LAND and cleared for the Approach; I noticed the switching light no longer lit so I had no radar altitude displayed on my PFD. I reselected the 'FO's FD' and then saw the RadAlt altitude at 1;025...This all happened at the same time Approach was querying our Altitude. We immediately climbed.

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.