An EMB145 crew did not set the correct barometric altimeter setting and realized; after ATC asked th...

Attributes
ACN	1056446
Time
Date	201212
Local Time Of Day	1201-1800
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Flight Conditions	IMC
Light	Dusk
Aircraft 1
Make Model Name	EMB ERJ 145 ER/LR
Operating Under FAR Part	Part 121
Flight Phase	Descent
Flight Plan	IFR
Component
Aircraft Component	Altimeter
Person 1
Function	Pilot Flying Captain
Qualification	Flight Crew Air Transport Pilot (ATP)
Events
Anomaly	Deviation - Altitude Overshoot Deviation - Altitude Excursion From Assigned Altitude Deviation - Procedural Clearance Inflight Event / Encounter Weather / Turbulence

Narrative:

During descent; after leveling at ATC assigned 12;000 ft; ATC queried about our assigned altitude. Pilot not flying indicated 12;000 ft assigned and asked what ATC was showing and asked for current altimeter. ATC said 29.06 was the destination altimeter and assigned 12;000 ft. Had mistakenly read and set 29.56 on ATIS causing lower altitude (lighting conditions low light; with turbulence and icing). Reset altimeters to correct 29.06 and made immediate climb to 12;000 ft assigned altitude. No apparent problems with ATC or other aircraft. Continued to our filed destination without incident.

Original NASA ASRS Text

Title: An EMB145 crew did not set the correct barometric altimeter setting and realized; after ATC asked them to verify their altitude; that they were 500 FT low.

Narrative: During descent; after leveling at ATC assigned 12;000 FT; ATC queried about our assigned altitude. Pilot not flying indicated 12;000 FT assigned and asked what ATC was showing and asked for current altimeter. ATC said 29.06 was the destination altimeter and assigned 12;000 FT. Had mistakenly read and set 29.56 on ATIS causing lower altitude (lighting conditions low light; with turbulence and icing). Reset altimeters to correct 29.06 and made immediate climb to 12;000 FT assigned altitude. No apparent problems with ATC or other aircraft. Continued to our filed destination without incident.

Data retrieved from NASA's ASRS site as of July 2013 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.

An EMB145 crew did not set the correct barometric altimeter setting and realized; after ATC asked them to verify their altitude; that they were 500 ft low.