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An air carrier flight crew discovers too late that they had not programmed the FMC so as to make a 7000 ft crossing restr 10 mi north of sau, ca.
| Attributes | |
| ACN | 458040 |
| Time | |
| Date | 199912 |
| Day | Thu |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| State Reference | CA |
| Altitude | msl single value : 10000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zoa.artcc tower : tvc.tower |
| Operator | common carrier : air carrier |
| Make Model Name | Medium Large Transport, Low Wing, 2 Turbojet Eng |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | other |
| Flight Phase | descent : vacating altitude descent : approach |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 225 flight time total : 4000 flight time type : 1500 |
| ASRS Report | 458040 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : multi engine pilot : flight engineer pilot : cfi pilot : atp |
| Experience | flight time last 90 days : 150 flight time total : 13000 flight time type : 1000 |
| ASRS Report | 457359 |
| Events | |
| Anomaly | altitude deviation : crossing restriction not met altitude deviation : undershoot non adherence : clearance non adherence : company policies |
| Independent Detector | other flight crewa other flight crewb |
| Resolutory Action | none taken : insufficient time other |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
ZOA controller gave crossing restr of 'cross 10 mi north of sau VOR at 7000 ft.' the other pilot programmed the FMC and mistakenly put 7000 ft restr at 'sau' instead of 'sauoi' (10 mi fix). Even though I looked at the FMC legs page to confirm, I did not catch the error. We did not notice the mistake until only 6 mi north of the crossing restr (following VNAV flight guidance). I was notable to make the crossing restr so the other pilot notified ATC controller. The controller did not issue any further instructions. On reflection, I should have been more careful confirming the FMC (sau is very similar to sauoi) and crosschecked VNAV path with raw data.
Original NASA ASRS Text
Title: AN ACR FLC DISCOVERS TOO LATE THAT THEY HAD NOT PROGRAMMED THE FMC SO AS TO MAKE A 7000 FT XING RESTR 10 MI N OF SAU, CA.
Narrative: ZOA CTLR GAVE XING RESTR OF 'CROSS 10 MI N OF SAU VOR AT 7000 FT.' THE OTHER PLT PROGRAMMED THE FMC AND MISTAKENLY PUT 7000 FT RESTR AT 'SAU' INSTEAD OF 'SAUOI' (10 MI FIX). EVEN THOUGH I LOOKED AT THE FMC LEGS PAGE TO CONFIRM, I DID NOT CATCH THE ERROR. WE DID NOT NOTICE THE MISTAKE UNTIL ONLY 6 MI N OF THE XING RESTR (FOLLOWING VNAV FLT GUIDANCE). I WAS NOTABLE TO MAKE THE XING RESTR SO THE OTHER PLT NOTIFIED ATC CTLR. THE CTLR DID NOT ISSUE ANY FURTHER INSTRUCTIONS. ON REFLECTION, I SHOULD HAVE BEEN MORE CAREFUL CONFIRMING THE FMC (SAU IS VERY SIMILAR TO SAUOI) AND XCHKED VNAV PATH WITH RAW DATA.
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.