37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
Attributes | |
ACN | 303127 |
Time | |
Date | 199504 |
Day | Fri |
Local Time Of Day | 0601 To 1200 |
Place | |
Locale Reference | atc facility : rmg |
State Reference | TN |
Altitude | msl bound lower : 15000 msl bound upper : 16000 |
Environment | |
Flight Conditions | VMC |
Light | Daylight |
Aircraft 1 | |
Controlling Facilities | artcc : ztl |
Operator | common carrier : air carrier |
Make Model Name | Commercial Fixed Wing |
Operating Under FAR Part | Part 135 |
Flight Phase | climbout : intermediate altitude cruise other |
Route In Use | arrival other |
Flight Plan | IFR |
Person 1 | |
Affiliation | company : air carrier |
Function | flight crew : captain oversight : pic |
Qualification | pilot : atp |
Experience | flight time last 90 days : 112 flight time total : 5265 flight time type : 1441 |
ASRS Report | 303127 |
Person 2 | |
Affiliation | company : air carrier |
Function | flight crew : first officer |
Qualification | pilot : commercial pilot : instrument |
Events | |
Anomaly | altitude deviation : overshoot non adherence : clearance other anomaly other |
Independent Detector | atc equipment other atc equipment : unspecified other controllera |
Resolutory Action | flight crew : returned to assigned altitude flight crew : became reoriented other |
Consequence | faa : reviewed incident with flight crew |
Supplementary | |
Primary Problem | Flight Crew Human Performance |
Air Traffic Incident | Pilot Deviation |
Narrative:
We reported out of 11000 ft for 15000 ft. After we leveled off at 15000 ft center said 'say altitude.' first officer 'level at 15000 ft.' center 'check altimeter setting,' and gave us a different setting than what we had. I pushed the transponder test to see what altitude the controller was seeing, it read 16000 ft. We set in the corrected setting and immediately corrected the altitude to 15000 ft. I believe the main reason for this incident was fatigue. Currently air carrier flies continuous duty overnight XA00-XB00, then on the same line in the same month you report and fly XC00 to XD30 day trips. Your body has no time to adjust, and you end up flying half asleep, or getting disciplinary action if you call in fatigued. There should be a law against a mix of all night trips and then all day trips in the same line in the same month it is not safe because the body has no time to adjust its sleep cycle. Rest regulations that would take into consideration human factors such as circadian rhythms, and sleep cycles would be a lot safer for crews, passenger, and would lower the stress level at FAA ATC ctrs.
Original NASA ASRS Text
Title: FLC LEVELS AT THE WRONG ALT DUE TO A WRONG ALTIMETER SETTING.
Narrative: WE RPTED OUT OF 11000 FT FOR 15000 FT. AFTER WE LEVELED OFF AT 15000 FT CTR SAID 'SAY ALT.' FO 'LEVEL AT 15000 FT.' CTR 'CHK ALTIMETER SETTING,' AND GAVE US A DIFFERENT SETTING THAN WHAT WE HAD. I PUSHED THE XPONDER TEST TO SEE WHAT ALT THE CTLR WAS SEEING, IT READ 16000 FT. WE SET IN THE CORRECTED SETTING AND IMMEDIATELY CORRECTED THE ALT TO 15000 FT. I BELIEVE THE MAIN REASON FOR THIS INCIDENT WAS FATIGUE. CURRENTLY ACR FLIES CONTINUOUS DUTY OVERNIGHT XA00-XB00, THEN ON THE SAME LINE IN THE SAME MONTH YOU RPT AND FLY XC00 TO XD30 DAY TRIPS. YOUR BODY HAS NO TIME TO ADJUST, AND YOU END UP FLYING HALF ASLEEP, OR GETTING DISCIPLINARY ACTION IF YOU CALL IN FATIGUED. THERE SHOULD BE A LAW AGAINST A MIX OF ALL NIGHT TRIPS AND THEN ALL DAY TRIPS IN THE SAME LINE IN THE SAME MONTH IT IS NOT SAFE BECAUSE THE BODY HAS NO TIME TO ADJUST ITS SLEEP CYCLE. REST REGULATIONS THAT WOULD TAKE INTO CONSIDERATION HUMAN FACTORS SUCH AS CIRCADIAN RHYTHMS, AND SLEEP CYCLES WOULD BE A LOT SAFER FOR CREWS, PAX, AND WOULD LOWER THE STRESS LEVEL AT FAA ATC CTRS.
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.