Apparent track and altitude deviation for arc medium large transport.

Attributes
ACN	155640
Time
Date	199009
Day	Mon
Local Time Of Day	1801 To 2400
Place
Locale Reference	atc facility : ctr
State Reference	MA
Altitude	msl bound lower : 23000 msl bound upper : 25000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zbw
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Navigation In Use	Other Other
Flight Phase	climbout : intermediate altitude cruise other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 120 flight time total : 10000 flight time type : 6000
ASRS Report	155640
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : instrument pilot : commercial
Events
Anomaly	altitude deviation : overshoot non adherence : clearance other spatial deviation
Independent Detector	other controllera other flight crewa
Resolutory Action	other
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

This event was a breakdown in crew communication. First officer and captain failed to communicate on ATC clearance. Flight plan was filed from over center to alb, but clearance was issued from center to cam on course. There was also a question of which altitude was assigned (FL230 or FL250). ATC was unsure of altitude. Crew thought it was FL250 but not positive. Both of these events are related due to the fact they occurred at the same time. This situation could have been prevented by better communication between the 2 crew members. Also better communication between crew and ATC.

Original NASA ASRS Text

Title: APPARENT TRACK AND ALT DEVIATION FOR ARC MLG.

Narrative: THIS EVENT WAS A BREAKDOWN IN CREW COM. F/O AND CAPT FAILED TO COMMUNICATE ON ATC CLRNC. FLT PLAN WAS FILED FROM OVER CENTER TO ALB, BUT CLRNC WAS ISSUED FROM CENTER TO CAM ON COURSE. THERE WAS ALSO A QUESTION OF WHICH ALT WAS ASSIGNED (FL230 OR FL250). ATC WAS UNSURE OF ALT. CREW THOUGHT IT WAS FL250 BUT NOT POSITIVE. BOTH OF THESE EVENTS ARE RELATED DUE TO THE FACT THEY OCCURRED AT THE SAME TIME. THIS SITUATION COULD HAVE BEEN PREVENTED BY BETTER COM BTWN THE 2 CREW MEMBERS. ALSO BETTER COM BTWN CREW AND ATC.

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.