Pilot exceeds duty time.

Attributes
ACN	284553
Time
Date	199409
Day	Wed
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : bos
State Reference	MA
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	Mixed
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : mem
Operator	common carrier : air taxi
Make Model Name	Commercial Fixed Wing
Operating Under FAR Part	Part 135
Flight Phase	ground : preflight
Flight Plan	IFR
Person 1
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : atp pilot : cfi
Experience	flight time total : 6314 flight time type : 437
ASRS Report	284553
Events
Anomaly	non adherence : far
Independent Detector	other flight crewa
Resolutory Action	none taken : detected after the fact
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Had a long day the day before, blocking 8.5 hours (flight time 7 hours) due to WX on the east coast and traffic delays at pwk. Far 135 talks about flight time not to exceed 8 hours single pilot crew, and as flight time (hobbs time) was 7 hours, I thought, incorrectly, that 10 hours rest before returning to duty was adequate. Far 1 states that 'flight time' as referred to in following sections is really block time. Due to arriving at bos at XA00 the night before, I'm sure I just suffered a 'temporary data corruption' condition. I only flew 1.8 hours block the next day and was not feeling fatigued, so I don't believe my safety or the safety of others was compromised, but this incident reinforces the need to 'cross all the T's and DOT all the I's.'

Original NASA ASRS Text

Title: PLT EXCEEDS DUTY TIME.

Narrative: HAD A LONG DAY THE DAY BEFORE, BLOCKING 8.5 HRS (FLT TIME 7 HRS) DUE TO WX ON THE EAST COAST AND TFC DELAYS AT PWK. FAR 135 TALKS ABOUT FLT TIME NOT TO EXCEED 8 HRS SINGLE PLT CREW, AND AS FLT TIME (HOBBS TIME) WAS 7 HRS, I THOUGHT, INCORRECTLY, THAT 10 HRS REST BEFORE RETURNING TO DUTY WAS ADEQUATE. FAR 1 STATES THAT 'FLT TIME' AS REFERRED TO IN FOLLOWING SECTIONS IS REALLY BLOCK TIME. DUE TO ARRIVING AT BOS AT XA00 THE NIGHT BEFORE, I'M SURE I JUST SUFFERED A 'TEMPORARY DATA CORRUPTION' CONDITION. I ONLY FLEW 1.8 HRS BLOCK THE NEXT DAY AND WAS NOT FEELING FATIGUED, SO I DON'T BELIEVE MY SAFETY OR THE SAFETY OF OTHERS WAS COMPROMISED, BUT THIS INCIDENT REINFORCES THE NEED TO 'CROSS ALL THE T'S AND DOT ALL THE I'S.'

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.