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37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
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Air carrier B727 flight crew delay vector to follow company B727. Other company L1011 lands ahead of both B727's. Reporter attributes this situation to 'failed free flight' concept.
| Attributes | |
| ACN | 406907 |
| Time | |
| Date | 199806 |
| Day | Mon |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : jnc |
| State Reference | CO |
| Altitude | msl bound lower : 31000 msl bound upper : 31000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zdv |
| Operator | common carrier : air carrier |
| Make Model Name | B727 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | cruise other cruise other |
| Route In Use | enroute : on vectors |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | common carrier : air carrier |
| Make Model Name | L-1011 Tri-Star All Series |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | Other |
| Flight Phase | cruise other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : flight engineer pilot : atp |
| Experience | flight time last 90 days : 150 flight time total : 10500 flight time type : 3500 |
| ASRS Report | 406907 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Events | |
| Anomaly | other anomaly other |
| Independent Detector | other flight crewa |
| Resolutory Action | other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | other |
Narrative:
Approximately 1 1/2 hours from our destination, we began a series of slow-downs and off course vectors for in-trail spacing to slc. Our conflicting traffic was another of our company's B727 (aircraft Z) that had originated in tul or okc. An L1011 (aircraft Y) that took off 5-10 mins after us from our origination airport landed 5-10 mins before us in slc. Proof positive that free flight will never work and is no more than a gimmick. 1 1/2 hours out is not a terminal delay.
Original NASA ASRS Text
Title: ACR B727 FLC DELAY VECTOR TO FOLLOW COMPANY B727. OTHER COMPANY L1011 LANDS AHEAD OF BOTH B727'S. RPTR ATTRIBUTES THIS SIT TO 'FAILED FREE FLT' CONCEPT.
Narrative: APPROX 1 1/2 HRS FROM OUR DEST, WE BEGAN A SERIES OF SLOW-DOWNS AND OFF COURSE VECTORS FOR IN-TRAIL SPACING TO SLC. OUR CONFLICTING TFC WAS ANOTHER OF OUR COMPANY'S B727 (ACFT Z) THAT HAD ORIGINATED IN TUL OR OKC. AN L1011 (ACFT Y) THAT TOOK OFF 5-10 MINS AFTER US FROM OUR ORIGINATION ARPT LANDED 5-10 MINS BEFORE US IN SLC. PROOF POSITIVE THAT FREE FLT WILL NEVER WORK AND IS NO MORE THAN A GIMMICK. 1 1/2 HRS OUT IS NOT A TERMINAL DELAY.
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.