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A required radio report is missed when crossing the pacific ADIZ. The crew attributed the cause to lack of rest and other distrs coupled with a less than useful map range setting.
| Attributes | |
| ACN | 620694 |
| Time | |
| Date | 200406 |
| Day | Sun |
| Local Time Of Day | 0001 To 0600 |
| Place | |
| Locale Reference | airport : sfo.airport |
| State Reference | CA |
| Altitude | msl single value : 38000 |
| Environment | |
| Flight Conditions | VMC |
| Weather Elements | Turbulence |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | artcc : zoa.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | B777 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | cruise : level |
| Route In Use | enroute : pacific |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 220 flight time total : 10000 flight time type : 2000 |
| ASRS Report | 620694 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Events | |
| Anomaly | aircraft equipment problem : less severe non adherence : far non adherence : published procedure |
| Independent Detector | other flight crewa |
| Resolutory Action | none taken : detected after the fact |
| Supplementary | |
| Problem Areas | Aircraft Flight Crew Human Performance |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
Radio call to ZOA was missed crossing pacific ADIZ eastbound. We were operating back side of body clock with 3 hours sleep in past 20 hours. The point was missed and passed off the map display without either pilot noticing. Corrective action: I will carry a kitchen timer from now on. On the B777 there is no way to alert one to a point passage other than watching it on the map display on long oceanic xings. We were filling out route monitoring paperwork, xfeeding fuel, answering calls from flight attendants, and monitoring an engine, which was high in vibration (still within limits) and using slightly more fuel. I had my map scale on a short range setting, which contributed to missing the point as the reporting point would only display for a short time on the shorter range. Distrs and sleep deprivation played a significant role. Kitchen timer will help avoid this problem from recurring. The B777 could benefit from some type of alarm clock or count down timer with audible signal.
Original NASA ASRS Text
Title: A REQUIRED RADIO RPT IS MISSED WHEN XING THE PACIFIC ADIZ. THE CREW ATTRIBUTED THE CAUSE TO LACK OF REST AND OTHER DISTRS COUPLED WITH A LESS THAN USEFUL MAP RANGE SETTING.
Narrative: RADIO CALL TO ZOA WAS MISSED XING PACIFIC ADIZ EBOUND. WE WERE OPERATING BACK SIDE OF BODY CLOCK WITH 3 HRS SLEEP IN PAST 20 HRS. THE POINT WAS MISSED AND PASSED OFF THE MAP DISPLAY WITHOUT EITHER PLT NOTICING. CORRECTIVE ACTION: I WILL CARRY A KITCHEN TIMER FROM NOW ON. ON THE B777 THERE IS NO WAY TO ALERT ONE TO A POINT PASSAGE OTHER THAN WATCHING IT ON THE MAP DISPLAY ON LONG OCEANIC XINGS. WE WERE FILLING OUT RTE MONITORING PAPERWORK, XFEEDING FUEL, ANSWERING CALLS FROM FLT ATTENDANTS, AND MONITORING AN ENG, WHICH WAS HIGH IN VIBRATION (STILL WITHIN LIMITS) AND USING SLIGHTLY MORE FUEL. I HAD MY MAP SCALE ON A SHORT RANGE SETTING, WHICH CONTRIBUTED TO MISSING THE POINT AS THE RPTING POINT WOULD ONLY DISPLAY FOR A SHORT TIME ON THE SHORTER RANGE. DISTRS AND SLEEP DEPRIVATION PLAYED A SIGNIFICANT ROLE. KITCHEN TIMER WILL HELP AVOID THIS PROB FROM RECURRING. THE B777 COULD BENEFIT FROM SOME TYPE OF ALARM CLOCK OR COUNT DOWN TIMER WITH AUDIBLE SIGNAL.
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.