<< >> NASA ASRS Report 796347, July 2008

An air carrier pilot describes the fatigue from attempting to sleep in four times zones in 48 hours. The pilot called in fatigued on day five of a five day trip.

Attributes
ACN	796347
Time
Date	200807
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : zzz.airport
State Reference	US
Altitude	agl single value : 0
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	B767-300 and 300 ER
Operating Under FAR Part	Part 121
Flight Phase	ground : parked
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Experience	flight time last 90 days : 240 flight time total : 15000 flight time type : 2800
ASRS Report	796347
Events
Anomaly	non adherence : company policies non adherence : published procedure other anomaly other
Independent Detector	other flight crewa
Resolutory Action	none taken : anomaly accepted
Supplementary
Problem Areas	Company Flight Crew Human Performance
Primary Problem	Ambiguous

Narrative:

Fatiguing assignment. After landing in ZZZ I went to sleep at XA00 ZZZ1 time. My pre all-nighter nap was at XN00 ZZZ1 time. My post all-nighter rest was at XD00 ZZZ1 time and my rest before an XA00 lax departure was at XD00 ZZZ1 time. That's 4 different sleep times in less than 48 hours. Upon landing in ZZZ1 I was expected to do 2 more legs with 2 hour breaks for a 12+ hour duty day on day 5! This would have become unsafe and I called in 'fatigued.'

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Original NASA ASRS Text

Title: AN ACR PILOT DESCRIBES THE FATIGUE FROM ATTEMPTING TO SLEEP IN FOUR TIMES ZONES IN 48 HOURS. THE PLT CALLED IN FATIGUED ON DAY FIVE OF A FIVE DAY TRIP.

Narrative: FATIGUING ASSIGNMENT. AFTER LNDG IN ZZZ I WENT TO SLEEP AT XA00 ZZZ1 TIME. MY PRE ALL-NIGHTER NAP WAS AT XN00 ZZZ1 TIME. MY POST ALL-NIGHTER REST WAS AT XD00 ZZZ1 TIME AND MY REST BEFORE AN XA00 LAX DEP WAS AT XD00 ZZZ1 TIME. THAT'S 4 DIFFERENT SLEEP TIMES IN LESS THAN 48 HRS. UPON LNDG IN ZZZ1 I WAS EXPECTED TO DO 2 MORE LEGS WITH 2 HR BREAKS FOR A 12+ HR DUTY DAY ON DAY 5! THIS WOULD HAVE BECOME UNSAFE AND I CALLED IN 'FATIGUED.'

Data retrieved from NASA's ASRS site as of May 2009 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.