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An air carrier DC10 first officer reports that his captain slowed to 220 KTS after TRACON gave him 250 KTS. Noncompliance with TRACON instructions. Flight crew technique speed control. Night operation.
| Attributes | |
| ACN | 345400 |
| Time | |
| Date | 199608 |
| Day | Thu |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : lax |
| State Reference | CA |
| Environment | |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | tracon : lax |
| Operator | common carrier : air carrier |
| Make Model Name | DC-10 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | Other |
| Flight Phase | descent : approach |
| Route In Use | arrival other arrival star : star |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : instrument |
| ASRS Report | 345400 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | non adherence : clearance other anomaly |
| Independent Detector | other controllera other flight crewa |
| Resolutory Action | other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
Unauthorized speed reduction on civit arrival. Time: XX15. ATC frequency: 124.9. ATC facility: socal approach control. Location: civit 1 arrival, approximately 16 DME. Captain was flying the approach. We were told to maintain 250 KTS. Captain slowed to 220 KTS and I advised him of the 250 KT restr. He told me to tell approach we were slowing. Before I could get on the radio to tell approach, they came back and told us to maintain 250 KTS.
Original NASA ASRS Text
Title: AN ACR DC10 FO RPTS THAT HIS CAPT SLOWED TO 220 KTS AFTER TRACON GAVE HIM 250 KTS. NONCOMPLIANCE WITH TRACON INSTRUCTIONS. FLC TECHNIQUE SPD CTL. NIGHT OP.
Narrative: UNAUTH SPD REDUCTION ON CIVIT ARR. TIME: XX15. ATC FREQ: 124.9. ATC FACILITY: SOCAL APCH CTL. LOCATION: CIVIT 1 ARR, APPROX 16 DME. CAPT WAS FLYING THE APCH. WE WERE TOLD TO MAINTAIN 250 KTS. CAPT SLOWED TO 220 KTS AND I ADVISED HIM OF THE 250 KT RESTR. HE TOLD ME TO TELL APCH WE WERE SLOWING. BEFORE I COULD GET ON THE RADIO TO TELL APCH, THEY CAME BACK AND TOLD US TO MAINTAIN 250 KTS.
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.