Reporter complains about far duty time provision.

Attributes
ACN	241433
Time
Date	199305
Day	Sat
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : ewr
State Reference	NJ
Altitude	agl bound lower : 0 agl bound upper : 0
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Flight Phase	ground : preflight
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp pilot : commercial
Experience	flight time last 90 days : 40 flight time total : 8000 flight time type : 1500
ASRS Report	241433
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	other anomaly other
Independent Detector	other flight crewa
Resolutory Action	none taken : unable
Consequence	Other
Supplementary
Air Traffic Incident	other

Narrative:

We believe our company has forced us to violate far 121.505(B) under supplemental air carrier rules. 'No pilot of an airplane that has a crew of 2 pilots may be on duty for more than 16 hours during any 24 consecutive hours.' we were on duty at XN00 EDT on fri and 'off' duty at XV00 EDT on fri. We were then required to 'show' at XF00 EDT on sat after flying 3 1/2 hours on fri. We are currently on duty at XF00 EDT on sun after flying 5.5 hours. We are now scheduled to fly from ewr to mdw with an ETA in mdw at XP30 EDT. We interpret 121.505(B) to put us in violation of this regulation. The company (based in dfw) believes that we are legal to fly this leg.

Original NASA ASRS Text

Title: RPTR COMPLAINS ABOUT FAR DUTY TIME PROVISION.

Narrative: WE BELIEVE OUR COMPANY HAS FORCED US TO VIOLATE FAR 121.505(B) UNDER SUPPLEMENTAL ACR RULES. 'NO PLT OF AN AIRPLANE THAT HAS A CREW OF 2 PLTS MAY BE ON DUTY FOR MORE THAN 16 HRS DURING ANY 24 CONSECUTIVE HRS.' WE WERE ON DUTY AT XN00 EDT ON FRI AND 'OFF' DUTY AT XV00 EDT ON FRI. WE WERE THEN REQUIRED TO 'SHOW' AT XF00 EDT ON SAT AFTER FLYING 3 1/2 HRS ON FRI. WE ARE CURRENTLY ON DUTY AT XF00 EDT ON SUN AFTER FLYING 5.5 HRS. WE ARE NOW SCHEDULED TO FLY FROM EWR TO MDW WITH AN ETA IN MDW AT XP30 EDT. WE INTERPRET 121.505(B) TO PUT US IN VIOLATION OF THIS REG. THE COMPANY (BASED IN DFW) BELIEVES THAT WE ARE LEGAL TO FLY THIS LEG.

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.