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Air carrier flight crew cited fatigue caused by duty day length and too many takeoffs and lndgs as contributing factor in heading deviation.
| Attributes | |
| ACN | 311830 |
| Time | |
| Date | 199507 |
| Day | Fri |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | atc facility : pxv |
| State Reference | IN |
| Altitude | msl bound lower : 22000 msl bound upper : 22000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zkc |
| Operator | common carrier : air carrier |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Flight Phase | cruise other |
| Route In Use | enroute : on vectors |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 240 flight time total : 21910 flight time type : 11900 |
| ASRS Report | 311830 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : instrument |
| Events | |
| Anomaly | 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:
After 12:59 duty day, on leg #7, we were 22000 ft MSL and center (ATC) said maintain present heading for flow into airport. After about 15 mins on this heading (first officer flying), at the VOR, we started outbound on the arrival route for say 2-3 mins. ATC called 'what's your heading?' we were on 265 degrees, now we were in turn to right to a 285 degree to 290 degree heading. ATC said 'you were assigned a heading for ATC flow into airport, turn left to a 250 degree heading.' both pilots were very tired after 13 hours on duty and just forgot we were on a heading and started out on the arrival route. We need less takeoffs and lndgs per day, 7-8 is too many. Also 13-15 hour duty day is too long.
Original NASA ASRS Text
Title: ACR FLC CITED FATIGUE CAUSED BY DUTY DAY LENGTH AND TOO MANY TKOFS AND LNDGS AS CONTRIBUTING FACTOR IN HDG DEV.
Narrative: AFTER 12:59 DUTY DAY, ON LEG #7, WE WERE 22000 FT MSL AND CTR (ATC) SAID MAINTAIN PRESENT HDG FOR FLOW INTO ARPT. AFTER ABOUT 15 MINS ON THIS HDG (FO FLYING), AT THE VOR, WE STARTED OUTBOUND ON THE ARR RTE FOR SAY 2-3 MINS. ATC CALLED 'WHAT'S YOUR HDG?' WE WERE ON 265 DEGS, NOW WE WERE IN TURN TO R TO A 285 DEG TO 290 DEG HDG. ATC SAID 'YOU WERE ASSIGNED A HDG FOR ATC FLOW INTO ARPT, TURN L TO A 250 DEG HDG.' BOTH PLTS WERE VERY TIRED AFTER 13 HRS ON DUTY AND JUST FORGOT WE WERE ON A HDG AND STARTED OUT ON THE ARR RTE. WE NEED LESS TKOFS AND LNDGS PER DAY, 7-8 IS TOO MANY. ALSO 13-15 HR DUTY DAY IS TOO LONG.
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.