Crj-200 first officer reported deviating from cleared course on approach to clt; citing multiple run...

Attributes
ACN	1210559
Time
Date	201410
Local Time Of Day	0601-1200
Place
Locale Reference	CLT.Airport
State Reference	NC
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	Regional Jet 200 ER/LR (CRJ200)
Operating Under FAR Part	Part 121
Flight Phase	Descent
Route In Use	STAR IVANE 4
Flight Plan	IFR
Person 1
Function	First Officer Pilot Flying
Events
Anomaly	ATC Issue All Types Aircraft Equipment Problem Less Severe Deviation - Procedural Clearance Deviation - Procedural Published Material / Policy Deviation - Track / Heading All Types

Narrative:

When conducting the ivane four arrival procedure; charlotte approach control changed the landing runway assignment multiple times. The pilot monitoring updated the FMS. While in the FMS navigation mode; with the autopilot engaged; the aircraft failed to turn at the amobe waypoint. The pilot flying immediately corrected the aircraft from deviating further from course and selected heading mode to re-join the arrival. The waypoint was overflown by approximately 1/2 mile and the arrival procedure was rejoined. Nothing further occurred. The FMS failed to navigate in navigation mode; while still showing FMS in the flight mode annunciator; due to the numerous runway changes issued by charlotte approach.

Original NASA ASRS Text

Title: CRJ-200 First Officer reported deviating from cleared course on approach to CLT; citing multiple runway changes and slow FMC processor speed as contributory.

Narrative: When conducting the IVANE FOUR arrival procedure; Charlotte approach control changed the landing runway assignment multiple times. The pilot monitoring updated the FMS. While in the FMS NAV mode; with the autopilot engaged; the aircraft failed to turn at the AMOBE waypoint. The pilot flying immediately corrected the aircraft from deviating further from course and selected HDG mode to re-join the arrival. The waypoint was overflown by approximately 1/2 mile and the arrival procedure was rejoined. Nothing further occurred. The FMS failed to navigate in NAV mode; while still showing FMS in the flight mode annunciator; due to the numerous runway changes issued by Charlotte approach.

Data retrieved from NASA's ASRS site 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.

Crj-200 first officer reported deviating from cleared course on approach to clt; citing multiple runway changes and slow FMC processor speed as contributory.