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Flight crew of B727 took off mdw with the PF's compass system misaligned. ATC alerted and crew realigned the compass system.
| Attributes | |
| ACN | 577281 |
| Time | |
| Date | 200303 |
| Day | Fri |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : mdw.airport |
| State Reference | IL |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : c90.tracon |
| Operator | common carrier : air carrier |
| Make Model Name | B727 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | climbout : intermediate altitude climbout : initial |
| Route In Use | departure : on vectors |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 200 flight time total : 10000 flight time type : 700 |
| ASRS Report | 577281 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Events | |
| Anomaly | aircraft equipment problem : critical non adherence : clearance non adherence : company policies other spatial deviation |
| Independent Detector | atc equipment other atc equipment : radar other controllera |
| Resolutory Action | controller : issued new clearance controller : issued alert flight crew : regained aircraft control flight crew : returned to intended or assigned course flight crew : overcame equipment problem |
| Supplementary | |
| Problem Areas | Aircraft Flight Crew Human Performance |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
After departing mdw, we were being vectored by departure. Departure then asked us to check our heading assigned. We then realized that there was a difference in the captain's and first officer's HSI heading indications. After looking at the wet compass, reading, we realized that the captain's HSI was incorrect. We got another vector from departure, adjusted the headings and got everything going in the right direction. There were no TCASII TA's or RA's. We did not catch the heading difference during performance of the taxi checklist, during taxi out for takeoff.
Original NASA ASRS Text
Title: FLT CREW OF B727 TOOK OFF MDW WITH THE PF'S COMPASS SYS MISALIGNED. ATC ALERTED AND CREW REALIGNED THE COMPASS SYS.
Narrative: AFTER DEPARTING MDW, WE WERE BEING VECTORED BY DEP. DEP THEN ASKED US TO CHK OUR HDG ASSIGNED. WE THEN REALIZED THAT THERE WAS A DIFFERENCE IN THE CAPT'S AND FO'S HSI HDG INDICATIONS. AFTER LOOKING AT THE WET COMPASS, READING, WE REALIZED THAT THE CAPT'S HSI WAS INCORRECT. WE GOT ANOTHER VECTOR FROM DEP, ADJUSTED THE HDGS AND GOT EVERYTHING GOING IN THE RIGHT DIRECTION. THERE WERE NO TCASII TA'S OR RA'S. WE DID NOT CATCH THE HDG DIFFERENCE DURING PERFORMANCE OF THE TAXI CHKLIST, DURING TAXI OUT FOR TKOF.
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.