Pilot deviation caused by flight crew distraction.

Attributes
ACN	293700
Time
Date	199501
Day	Sat
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : yyz
State Reference	ON
Altitude	msl bound lower : 5000 msl bound upper : 5300
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : dtw
Operator	common carrier : air carrier
Make Model Name	B757 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Navigation In Use	Other Other
Flight Phase	climbout : intermediate altitude
Route In Use	departure other departure sid : sid enroute airway : yyz
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
ASRS Report	293700
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
ASRS Report	293635
Events
Anomaly	altitude deviation : overshoot non adherence : clearance
Independent Detector	other flight crewa
Resolutory Action	flight crew : returned to intended course or assigned course
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Climbing out on pearson 1 departure runway 33. Cleared to maintain 5000 ft, left turn to 270 degrees, direct arthur intersection. TCASII TA, captain flying called traffic. First officer was head down on CDU entering direct intercept. Captain noticed altitude was 5300 ft vice 5000 ft and returned to 5000 ft. ATC advised clear of traffic, cleared to FL230.

Original NASA ASRS Text

Title: PLTDEV CAUSED BY FLC DISTR.

Narrative: CLBING OUT ON PEARSON 1 DEP RWY 33. CLRED TO MAINTAIN 5000 FT, L TURN TO 270 DEGS, DIRECT ARTHUR INTXN. TCASII TA, CAPT FLYING CALLED TFC. FO WAS HEAD DOWN ON CDU ENTERING DIRECT INTERCEPT. CAPT NOTICED ALT WAS 5300 FT VICE 5000 FT AND RETURNED TO 5000 FT. ATC ADVISED CLR OF TFC, CLRED TO FL230.

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.