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Commuter first officer claims the captain flew an illegal approach into dsm because he used IAP ASR approach without declaring an emergency.
| Attributes | |
| ACN | 195958 |
| Time | |
| Date | 199112 |
| Day | Tue |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : dsm |
| State Reference | IA |
| Altitude | agl bound lower : 1000 agl bound upper : 1000 |
| Environment | |
| Flight Conditions | IMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : dsm tower : stl |
| Operator | common carrier : air carrier |
| Make Model Name | Light Transport, Low Wing, 2 Turboprop Eng |
| Flight Phase | descent : approach descent other landing other |
| Route In Use | enroute : on vectors |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : cfi pilot : commercial pilot : instrument |
| Experience | flight time last 90 days : 300 flight time total : 3500 |
| ASRS Report | 195958 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | aircraft equipment problem : less severe non adherence : far |
| Independent Detector | other flight crewa |
| Resolutory Action | none taken : anomaly accepted |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
The captain was flying at the time. The aircraft had been 'written' up for erroneous VOR indications. The problem was corrected and signed off by a company mechanic. On the flight in question, the captain noted a momentary full scale needle deflection on his VOR. I did not on my side. This made the captain paranoid of using the VOR equipment. Note that we were receiving accurate information from both vors after this up until engine shutdown. He decided that we would do an ASR approach to 12L at dsm. However, our company operations specifications prohibit us from doing so. By not declaring an emergency (which it was not) we were in direct violation. I, as first officer, should have insisted upon doing the NDB to 30R, which the WX would have allowed, with a circle to 12L.
Original NASA ASRS Text
Title: COMMUTER FO CLAIMS THE CAPT FLEW AN ILLEGAL APCH INTO DSM BECAUSE HE USED IAP ASR APCH WITHOUT DECLARING AN EMER.
Narrative: THE CAPT WAS FLYING AT THE TIME. THE ACFT HAD BEEN 'WRITTEN' UP FOR ERRONEOUS VOR INDICATIONS. THE PROBLEM WAS CORRECTED AND SIGNED OFF BY A COMPANY MECH. ON THE FLT IN QUESTION, THE CAPT NOTED A MOMENTARY FULL SCALE NEEDLE DEFLECTION ON HIS VOR. I DID NOT ON MY SIDE. THIS MADE THE CAPT PARANOID OF USING THE VOR EQUIP. NOTE THAT WE WERE RECEIVING ACCURATE INFO FROM BOTH VORS AFTER THIS UP UNTIL ENG SHUTDOWN. HE DECIDED THAT WE WOULD DO AN ASR APCH TO 12L AT DSM. HOWEVER, OUR COMPANY OPS SPECS PROHIBIT US FROM DOING SO. BY NOT DECLARING AN EMER (WHICH IT WAS NOT) WE WERE IN DIRECT VIOLATION. I, AS FO, SHOULD HAVE INSISTED UPON DOING THE NDB TO 30R, WHICH THE WX WOULD HAVE ALLOWED, WITH A CIRCLE TO 12L.
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.