37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
Attributes | |
ACN | 373069 |
Time | |
Date | 199706 |
Day | Mon |
Local Time Of Day | 1201 To 1800 |
Place | |
Locale Reference | atc facility : ord |
State Reference | IL |
Altitude | msl bound lower : 11000 msl bound upper : 13000 |
Environment | |
Flight Conditions | VMC |
Light | Daylight |
Aircraft 1 | |
Operator | common carrier : air carrier |
Make Model Name | B727 Undifferentiated or Other Model |
Operating Under FAR Part | Part 121 |
Flight Phase | descent other |
Route In Use | arrival other arrival star : star enroute airway : zau |
Flight Plan | IFR |
Person 1 | |
Affiliation | company : air carrier |
Function | flight crew : captain oversight : pic |
Qualification | pilot : atp |
ASRS Report | 373069 |
Person 2 | |
Affiliation | company : air carrier |
Function | flight crew : second officer |
Qualification | pilot : commercial pilot : flight engineer pilot : instrument |
ASRS Report | 373070 |
Events | |
Anomaly | altitude deviation : undershoot altitude deviation : crossing restriction not met non adherence : clearance |
Independent Detector | other flight crewa |
Resolutory Action | none taken : anomaly accepted none taken : insufficient time |
Consequence | Other |
Supplementary | |
Primary Problem | Flight Crew Human Performance |
Air Traffic Incident | Pilot Deviation |
Narrative:
We were on the bradford 3 arrival to ord. We had been issued a clearance to cross 50 mi southwest of ord at 11000 ft. The first officer was flying. When we were about 70 mi southwest, I began to get concerned that the first officer had misunderstood the clearance. I repeated to him that the clearance was to cross 50 mi southwest at 11000 ft. He acknowledged and affirmed that he would make it. However, the rate of descent was never increased sufficiently to make the restr. This was approximately XA35Z. I mistakenly let the situation go to the point where we were unable to make the restr. In the future, I will act sooner and get more concrete information from the other pilot on what they intend to do to resolve the situation so that we will have time to correct any misunderstandings. Supplemental information from acn 373070: missed by 3 mi. No radio call from ATC indicating a problem.
Original NASA ASRS Text
Title: FO OF A B727 FAILED TO MAKE A XING RESTR DUE TO NOT INCREASING THE RATE OF DSCNT DUE TO A TAILWIND.
Narrative: WE WERE ON THE BRADFORD 3 ARR TO ORD. WE HAD BEEN ISSUED A CLRNC TO CROSS 50 MI SW OF ORD AT 11000 FT. THE FO WAS FLYING. WHEN WE WERE ABOUT 70 MI SW, I BEGAN TO GET CONCERNED THAT THE FO HAD MISUNDERSTOOD THE CLRNC. I REPEATED TO HIM THAT THE CLRNC WAS TO CROSS 50 MI SW AT 11000 FT. HE ACKNOWLEDGED AND AFFIRMED THAT HE WOULD MAKE IT. HOWEVER, THE RATE OF DSCNT WAS NEVER INCREASED SUFFICIENTLY TO MAKE THE RESTR. THIS WAS APPROX XA35Z. I MISTAKENLY LET THE SIT GO TO THE POINT WHERE WE WERE UNABLE TO MAKE THE RESTR. IN THE FUTURE, I WILL ACT SOONER AND GET MORE CONCRETE INFO FROM THE OTHER PLT ON WHAT THEY INTEND TO DO TO RESOLVE THE SIT SO THAT WE WILL HAVE TIME TO CORRECT ANY MISUNDERSTANDINGS. SUPPLEMENTAL INFO FROM ACN 373070: MISSED BY 3 MI. NO RADIO CALL FROM ATC INDICATING A PROB.
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.