First officer on air carrier widebody transport flying locke one arrival into sfo is cleared to cros...

Attributes
ACN	137249
Time
Date	199002
Day	Sat
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : sfo
State Reference	CA
Altitude	msl bound lower : 10000 msl bound upper : 11000
Environment
Flight Conditions	IMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : oak
Operator	common carrier : air carrier
Make Model Name	Widebody, Low Wing, 2 Turbojet Eng
Navigation In Use	Other
Flight Phase	cruise other descent other
Route In Use	arrival other arrival star : star
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : cfi pilot : atp pilot : flight engineer
Experience	flight time last 90 days : 100 flight time total : 5600 flight time type : 200
ASRS Report	137249
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	altitude deviation : undershoot altitude deviation : crossing restriction not met non adherence : clearance
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:

I was flying the locke one arrival to san francisco, coaldale transition. The autothrottle and autoplt were turned off so I could handfly the approach. We were cleared to cross locke intersection at 250 KTS and 10000'. For some reason I leveled off at 11000' and stayed at that altitude until crossing locke at which time we were cleared to descend to 9000'. There is a need to handfly an EFIS equipped airplane to maintain your flying skills. However, when so doing, an extra vigilance should be maintained in the cockpit by both the PF and PNF so as to not lose sight of the big picture (i.e. Crossing altitudes, airspds, ect.). There is a widely held contention (I believe) that you will lose your flying skills if flying an EFIS equipped airplane. However, after flying a yr on the ackpt navltl medium large transport and 4 mos on the ackpt display widebody transport I contend that hand flying an EFIS equipped airplane, if done properly and coordinated with the AFDS panel, will actually increase your scan proficiency. This is because there are so many more inputs that need to be crosschecked with your normal airspeed, vsi, altimeter, dg, and attitude indicator. You need to have confidence when to 'fly through' the flight director commands and when to fly them precisely. Practice makes perfect.

Original NASA ASRS Text

Title: FO ON ACR WDB FLYING LOCKE ONE ARR INTO SFO IS CLEARED TO CROSS LOCKE INTERSECTION AT 10000', BUT FLT CREW LEVELS AT 11000' FOR REASONS THEY CANNOT EXPLAIN.

Narrative: I WAS FLYING THE LOCKE ONE ARR TO SAN FRANCISCO, COALDALE TRANSITION. THE AUTOTHROTTLE AND AUTOPLT WERE TURNED OFF SO I COULD HANDFLY THE APCH. WE WERE CLRED TO CROSS LOCKE INTXN AT 250 KTS AND 10000'. FOR SOME REASON I LEVELED OFF AT 11000' AND STAYED AT THAT ALT UNTIL XING LOCKE AT WHICH TIME WE WERE CLRED TO DSND TO 9000'. THERE IS A NEED TO HANDFLY AN EFIS EQUIPPED AIRPLANE TO MAINTAIN YOUR FLYING SKILLS. HOWEVER, WHEN SO DOING, AN EXTRA VIGILANCE SHOULD BE MAINTAINED IN THE COCKPIT BY BOTH THE PF AND PNF SO AS TO NOT LOSE SIGHT OF THE BIG PICTURE (I.E. XING ALTS, AIRSPDS, ECT.). THERE IS A WIDELY HELD CONTENTION (I BELIEVE) THAT YOU WILL LOSE YOUR FLYING SKILLS IF FLYING AN EFIS EQUIPPED AIRPLANE. HOWEVER, AFTER FLYING A YR ON THE ACKPT NAVLTL MLG AND 4 MOS ON THE ACKPT DISPLAY WDB I CONTEND THAT HAND FLYING AN EFIS EQUIPPED AIRPLANE, IF DONE PROPERLY AND COORDINATED WITH THE AFDS PANEL, WILL ACTUALLY INCREASE YOUR SCAN PROFICIENCY. THIS IS BECAUSE THERE ARE SO MANY MORE INPUTS THAT NEED TO BE XCHKED WITH YOUR NORMAL AIRSPD, VSI, ALTIMETER, DG, AND ATTITUDE INDICATOR. YOU NEED TO HAVE CONFIDENCE WHEN TO 'FLY THROUGH' THE FLT DIRECTOR COMMANDS AND WHEN TO FLY THEM PRECISELY. PRACTICE MAKES PERFECT.

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.

First officer on air carrier widebody transport flying locke one arrival into sfo is cleared to cross locke intersection at 10000', but flight crew levels at 11000' for reasons they cannot explain.