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Canadair rj-CL65 aircraft on approach in IMC. GPWS 'terrain' warning prompts flight crew to execute go around. Cause of GPWS unknown. During go around flight crew went through assigned altitude by 400 ft and exceeded 300 KTS. Callback with reporter first officer reveals that the flight crew was distracted due to a canadair rj which had crashed that day.
| Attributes | |
| ACN | 357581 |
| Time | |
| Date | 199701 |
| Day | Fri |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : tys |
| State Reference | TN |
| Altitude | msl bound lower : 4000 msl bound upper : 4400 |
| Environment | |
| Flight Conditions | IMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : tys |
| Operator | common carrier : air carrier |
| Make Model Name | Challenger CL604 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | Other Other |
| Flight Phase | descent : approach descent other landing : missed approach |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 160 flight time total : 3000 flight time type : 400 |
| ASRS Report | 357581 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | altitude deviation : overshoot non adherence : clearance other anomaly other anomaly other other spatial deviation |
| Independent Detector | other flight crewa |
| Resolutory Action | controller : issued new clearance flight crew : returned to intended course or assigned course other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
While on approach to tys and cleared approach, received GPWS warning. Captain was PF and executed missed approach. ATC instructed us to climb to 4000 ft. Due to high power setting and loss of concentration, awareness (whatever) we went to 4400 ft before recovering and airspeed exceeded 300 KTS. Continued with new approach and landed uneventfully. Callback conversation with reporter revealed the following information: callback was to obtain name and address for reporter who had left it off the identify strip. Also, aircraft type verified as canadair regional jet. Reporter first officer didn't know what caused the GPWS 'terrain' warning, but surmised possible high terrain, though he says their descent rate was normal and on an intercept vector for the ILS. He says that they had had a hard day because they had heard of a canadair rj crashing in dtw.
Original NASA ASRS Text
Title: CANADAIR RJ-CL65 ACFT ON APCH IN IMC. GPWS 'TERRAIN' WARNING PROMPTS FLC TO EXECUTE GAR. CAUSE OF GPWS UNKNOWN. DURING GAR FLC WENT THROUGH ASSIGNED ALT BY 400 FT AND EXCEEDED 300 KTS. CALLBACK WITH RPTR FO REVEALS THAT THE FLC WAS DISTRACTED DUE TO A CANADAIR RJ WHICH HAD CRASHED THAT DAY.
Narrative: WHILE ON APCH TO TYS AND CLRED APCH, RECEIVED GPWS WARNING. CAPT WAS PF AND EXECUTED MISSED APCH. ATC INSTRUCTED US TO CLB TO 4000 FT. DUE TO HIGH PWR SETTING AND LOSS OF CONCENTRATION, AWARENESS (WHATEVER) WE WENT TO 4400 FT BEFORE RECOVERING AND AIRSPD EXCEEDED 300 KTS. CONTINUED WITH NEW APCH AND LANDED UNEVENTFULLY. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: CALLBACK WAS TO OBTAIN NAME AND ADDRESS FOR RPTR WHO HAD LEFT IT OFF THE IDENT STRIP. ALSO, ACFT TYPE VERIFIED AS CANADAIR REGIONAL JET. RPTR FO DIDN'T KNOW WHAT CAUSED THE GPWS 'TERRAIN' WARNING, BUT SURMISED POSSIBLE HIGH TERRAIN, THOUGH HE SAYS THEIR DSCNT RATE WAS NORMAL AND ON AN INTERCEPT VECTOR FOR THE ILS. HE SAYS THAT THEY HAD HAD A HARD DAY BECAUSE THEY HAD HEARD OF A CANADAIR RJ CRASHING IN DTW.
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.