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B737 flight crew enters wrong fix in FMC. ATC caught the error and gave vectors to correct. They leveled off at correct altitude.
| Attributes | |
| ACN | 373340 |
| Time | |
| Date | 199707 |
| Day | Sat |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | atc facility : las |
| State Reference | NV |
| Altitude | msl bound lower : 12000 msl bound upper : 18000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | artcc : zla tracon : las |
| Operator | common carrier : air carrier |
| Make Model Name | B737 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | Other |
| Flight Phase | descent other |
| Route In Use | enroute : on vectors |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : atp pilot : cfi |
| Experience | flight time last 90 days : 220 flight time total : 10000 flight time type : 1800 |
| ASRS Report | 373340 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | altitude deviation : crossing restriction not met non adherence : clearance other spatial deviation |
| Independent Detector | other controllera |
| Resolutory Action | controller : issued new clearance flight crew : returned to intended course or assigned course other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
Airline flight slc to las, the center gave us a fix of las 240 degree radial at 40 DME, 12000 ft. The captain's leg, he mistakenly put las 240 degrees/50 DME in FMC-fix page. As we approached the improper fix the controller questioned our position and gave us a heading to correct our position. We did so and leveled at 12000 ft. End of event. Primary cause for error was not double-checking inputs and backing up with confirmation from other pilot. Also fatigue a major factor 3RD leg of trip 10+ hours of duty going into day 3 of 4 day trip. I think the industry, FAA, air carrier, should consider lower duty day period requirements as we fly night pairings when the body is adjusting to improper rest.
Original NASA ASRS Text
Title: B737 FLC ENTERS WRONG FIX IN FMC. ATC CAUGHT THE ERROR AND GAVE VECTORS TO CORRECT. THEY LEVELED OFF AT CORRECT ALT.
Narrative: AIRLINE FLT SLC TO LAS, THE CTR GAVE US A FIX OF LAS 240 DEG RADIAL AT 40 DME, 12000 FT. THE CAPT'S LEG, HE MISTAKENLY PUT LAS 240 DEGS/50 DME IN FMC-FIX PAGE. AS WE APCHED THE IMPROPER FIX THE CTLR QUESTIONED OUR POS AND GAVE US A HEADING TO CORRECT OUR POS. WE DID SO AND LEVELED AT 12000 FT. END OF EVENT. PRIMARY CAUSE FOR ERROR WAS NOT DOUBLE-CHKING INPUTS AND BACKING UP WITH CONFIRMATION FROM OTHER PLT. ALSO FATIGUE A MAJOR FACTOR 3RD LEG OF TRIP 10+ HRS OF DUTY GOING INTO DAY 3 OF 4 DAY TRIP. I THINK THE INDUSTRY, FAA, ACR, SHOULD CONSIDER LOWER DUTY DAY PERIOD REQUIREMENTS AS WE FLY NIGHT PAIRINGS WHEN THE BODY IS ADJUSTING TO IMPROPER REST.
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.