A class B tower controller set the facility's altimeter at 29.60 with an actual altimeter of 30.60 a...

Attributes
ACN	991975
Time
Date	201201
Local Time Of Day	0601-1200
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Flight Conditions	IMC
Light	Daylight
Aircraft 1
Make Model Name	Citation II S2/Bravo (C550)
Operating Under FAR Part	Part 91
Flight Phase	Final Approach
Flight Plan	IFR
Component
Aircraft Component	Altimeter
Person 1
Function	Pilot Flying Captain
Qualification	Flight Crew Instrument Flight Crew Multiengine Flight Crew Air Transport Pilot (ATP) Flight Crew Flight Instructor
Experience	Flight Crew Last 90 Days 60 Flight Crew Total 15000 Flight Crew Type 5000
Events
Anomaly	ATC Issue All Types Deviation - Procedural Published Material / Policy

Narrative:

Upon passing the final approach fix to ILS 10R; the tower issued a low altitude alert to us. The tower radar showed us at 100 ft AGL. They instructed us to verify our altimeters set at 30.60. We verified; and cross referenced our flight instruments; and noted no GPWS warnings; or any variations of the flight instruments. At this point in [the] flight we were at 600 ft AGL. We continued the approach to a full stop landing. Upon landing the tower told us that it was a problem on their end. I did call TRACON; and asked just what the problem was. They told me that they had their altimeters set at 29.60. I questioned whether I took the appropriate action in continuing on the approach to a full stop landing. We are always taught to trust our instruments; but maybe a missed approach would have been a better choice.

Original NASA ASRS Text

Title: A Class B Tower Controller set the facility's altimeter at 29.60 with an actual altimeter of 30.60 and as a result issued an aircraft on final a low altitude alert when in fact the aircraft was on profile.

Narrative: Upon passing the final approach fix to ILS 10R; the Tower issued a low altitude alert to us. The tower radar showed us at 100 FT AGL. They instructed us to verify our altimeters set at 30.60. We verified; and cross referenced our flight instruments; and noted no GPWS warnings; or any variations of the flight instruments. At this point in [the] flight we were at 600 FT AGL. We continued the approach to a full stop landing. Upon landing the Tower told us that it was a problem on their end. I did call TRACON; and asked just what the problem was. They told me that they had their altimeters set at 29.60. I questioned whether I took the appropriate action in continuing on the approach to a full stop landing. We are always taught to trust our instruments; but maybe a missed approach would have been a better choice.

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.

A class B tower controller set the facility's altimeter at 29.60 with an actual altimeter of 30.60 and as a result issued an aircraft on final a low altitude alert when in fact the aircraft was on profile.