B737-700 first officer reports the captain making rapid changes to the FMC without waiting for verif...

Narrative:

As we approached slidr on the eagul 5 arrival into phx; the captain was pilot flying and was rapidly making changes to the arrival and executing without giving me a chance to verify the changes. At one point as we were about five miles from slidr; there was a discontinuity after slidr and no arrival loaded. I suggested that the captain at least put the next fix so that we stay on the correct course for the arrival. The captain didn't want to do this and kept making changes in the CDU. As we passed slidr and the plane continued on its heading due to the discontinuity; the captain then entered the eagul 5 on the arrival page and this time included the gup transition. The captain then put gup in line select L1 position and executed again without verifying with me. Gup was behind us and the plane began making a 180 degree turn back to gup. I suggested heading mode; but the captain was still trying to enter it in the CDU. I reached up and selected heading mode while I announced my action and turned the heading toward the next fix which was tiniz. The captain then brought tiniz up to line select L1; executed; and LNAV was re-engaged. Procedures need to be followed that mandate that all entries to the CDU are verified by the other pilot before executing.

Original NASA ASRS Text

Title: B737-700 First Officer reports the Captain making rapid changes to the FMC without waiting for verification before executing. A track deviation occurs on the EAGUL 5 arrival due to an incorrect entry.

Narrative: As we approached SLIDR on the EAGUL 5 Arrival into PHX; the Captain was pilot flying and was rapidly making changes to the arrival and executing without giving me a chance to verify the changes. At one point as we were about five miles from SLIDR; there was a discontinuity after SLIDR and no arrival loaded. I suggested that the Captain at least put the next fix so that we stay on the correct course for the arrival. The Captain didn't want to do this and kept making changes in the CDU. As we passed SLIDR and the plane continued on its heading due to the discontinuity; the Captain then entered the EAGUL 5 on the Arrival page and this time included the GUP transition. The Captain then put GUP in line select L1 position and executed again without verifying with me. GUP was behind us and the plane began making a 180 degree turn back to GUP. I suggested heading mode; but the Captain was still trying to enter it in the CDU. I reached up and selected heading mode while I announced my action and turned the heading toward the next fix which was TINIZ. The Captain then brought TINIZ up to line select L1; executed; and LNAV was re-engaged. Procedures need to be followed that mandate that all entries to the CDU are verified by the other pilot before executing.

Data retrieved from NASA's ASRS site as of July 2013 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.

Attributes
ACN	1121924
Time
Date	201310
Local Time Of Day	1201-1800
Place
Locale Reference	ZAB.ARTCC
State Reference	NM
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	B737-700
Operating Under FAR Part	Part 121
Flight Phase	Descent
Route In Use	STAR EAGUL5
Flight Plan	IFR
Component
Aircraft Component	FMS/FMC
Person 1
Function	First Officer Pilot Not Flying
Experience	Flight Crew Last 90 Days 163
Events
Anomaly	Deviation - Procedural Clearance Deviation - Procedural Published Material / Policy Deviation - Track / Heading All Types Flight Deck / Cabin / Aircraft Event Other / Unknown

B737-700 first officer reports the captain making rapid changes to the FMC without waiting for verification before executing. A track deviation occurs on the eagul 5 arrival due to an incorrect entry.