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A corporate jet's flight crew departed with an incorrect altimeter setting. Controller intervened and cited a traffic conflict.
| Attributes | |
| ACN | 302511 |
| Time | |
| Date | 199504 |
| Day | Wed |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : ord airport : pwk |
| State Reference | IL |
| Altitude | msl bound lower : 3000 msl bound upper : 3600 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : ord |
| Operator | general aviation : corporate |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Operating Under FAR Part | Part 91 |
| Navigation In Use | Other |
| Flight Phase | climbout : initial |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | Other |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 30 flight time total : 6500 flight time type : 1500 |
| ASRS Report | 302511 |
| Person 2 | |
| Affiliation | Other |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | altitude deviation : overshoot conflict : airborne less severe non adherence : far non adherence : clearance non adherence : required legal separation other anomaly other |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : returned to intended course or assigned course other other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
IFR from pwk. Tower never gave handoff to departure control, on ground local altimeter was not given. (No ATIS was received by crew members.) ground control or clearance delivery never asked if ATIS was received. After takeoff climbed to assigned altitude of 3000 ft. Went over to departure control on our own call level at 3000 ft. Controller asked for verification of altitude. Said he showed 3600 ft. Checked altimeter at 29.96. Our altimeter was at 29.46. We made the correction. Controller said that there was another aircraft at 4000 ft above us. I never saw any aircraft or any conflict. I believe that because of an arrival the day before with such a low altimeter setting and not receiving a new altimeter setting by the crew, the possible conflict occurred.
Original NASA ASRS Text
Title: A CORPORATE JET'S FLC DEPARTED WITH AN INCORRECT ALTIMETER SETTING. CTLR INTERVENED AND CITED A TFC CONFLICT.
Narrative: IFR FROM PWK. TWR NEVER GAVE HDOF TO DEP CTL, ON GND LCL ALTIMETER WAS NOT GIVEN. (NO ATIS WAS RECEIVED BY CREW MEMBERS.) GND CTL OR CLRNC DELIVERY NEVER ASKED IF ATIS WAS RECEIVED. AFTER TKOF CLBED TO ASSIGNED ALT OF 3000 FT. WENT OVER TO DEP CTL ON OUR OWN CALL LEVEL AT 3000 FT. CTLR ASKED FOR VERIFICATION OF ALT. SAID HE SHOWED 3600 FT. CHKED ALTIMETER AT 29.96. OUR ALTIMETER WAS AT 29.46. WE MADE THE CORRECTION. CTLR SAID THAT THERE WAS ANOTHER ACFT AT 4000 FT ABOVE US. I NEVER SAW ANY ACFT OR ANY CONFLICT. I BELIEVE THAT BECAUSE OF AN ARR THE DAY BEFORE WITH SUCH A LOW ALTIMETER SETTING AND NOT RECEIVING A NEW ALTIMETER SETTING BY THE CREW, THE POSSIBLE CONFLICT OCCURRED.
Data retrieved from NASA's ASRS site as of July 2007 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.