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Medium large transport air carrier aircraft on STAR arrival with first officer flying, slowed aircraft to 230 KTS. Approach controller questions speed and flight crew increases it to 250 KTS.
| Attributes | |
| ACN | 393490 |
| Time | |
| Date | 199802 |
| Day | Sun |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : dxo |
| State Reference | MI |
| Altitude | msl bound lower : 12000 msl bound upper : 12000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Flight Phase | cruise other descent other |
| Route In Use | arrival other arrival star : star enroute airway : dtw |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp pilot : cfi pilot : flight engineer |
| Experience | flight time last 90 days : 80 flight time total : 9000 flight time type : 4000 |
| ASRS Report | 393490 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : instrument pilot : commercial |
| Events | |
| Anomaly | other anomaly other |
| Independent Detector | other controllera |
| Resolutory Action | controller : issued new clearance other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | other |
Narrative:
Following leveloff at 12000 ft MSL, first officer flying aircraft at 230 KTS. ATC queried speed, I responded by saying 230 KTS and asking what speed he wanted, he asked why 230 KTS. I gave no response. He said at our speed we would not be able to begin descent for dtw for 35? Mi. I said 'ok.' we accelerated to approximately 250 KTS. No further mention was made of our speed. Remainder of flight was uneventful. This was a 26 min flight. I completed the climb check as per sopa out of 10000 ft and then tuned and listened to dtw ATIS. The first officer was flying too slow and I noticed his airspeed deviation a moment before ATC queried us. I did not want to respond on the radio by saying we were flying at the wrong speed, so I was evasive in responding to dtw approach's question as to why we were slowed. I told the first officer to speed up. There was almost no other arrival traffic on the frequency, so I assume we did not cause other aircraft separation difficulties.
Original NASA ASRS Text
Title: MLG ACR ACFT ON STAR ARR WITH FO FLYING, SLOWED ACFT TO 230 KTS. APCH CTLR QUESTIONS SPD AND FLC INCREASES IT TO 250 KTS.
Narrative: FOLLOWING LEVELOFF AT 12000 FT MSL, FO FLYING ACFT AT 230 KTS. ATC QUERIED SPD, I RESPONDED BY SAYING 230 KTS AND ASKING WHAT SPD HE WANTED, HE ASKED WHY 230 KTS. I GAVE NO RESPONSE. HE SAID AT OUR SPD WE WOULD NOT BE ABLE TO BEGIN DSCNT FOR DTW FOR 35? MI. I SAID 'OK.' WE ACCELERATED TO APPROX 250 KTS. NO FURTHER MENTION WAS MADE OF OUR SPD. REMAINDER OF FLT WAS UNEVENTFUL. THIS WAS A 26 MIN FLT. I COMPLETED THE CLB CHK AS PER SOPA OUT OF 10000 FT AND THEN TUNED AND LISTENED TO DTW ATIS. THE FO WAS FLYING TOO SLOW AND I NOTICED HIS AIRSPD DEV A MOMENT BEFORE ATC QUERIED US. I DID NOT WANT TO RESPOND ON THE RADIO BY SAYING WE WERE FLYING AT THE WRONG SPD, SO I WAS EVASIVE IN RESPONDING TO DTW APCH'S QUESTION AS TO WHY WE WERE SLOWED. I TOLD THE FO TO SPD UP. THERE WAS ALMOST NO OTHER ARR TFC ON THE FREQ, SO I ASSUME WE DID NOT CAUSE OTHER ACFT SEPARATION DIFFICULTIES.
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.