Air carrier X continued NAVAID fluctuations on the lan VOR.

Attributes
ACN	282669
Time
Date	199406
Day	Mon
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : lan
State Reference	MI
Altitude	msl bound lower : 13000 msl bound upper : 13000
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	Commercial Fixed Wing
Operating Under FAR Part	Part 121
Navigation In Use	other vortac
Flight Phase	cruise other
Route In Use	enroute : direct enroute airway : zau
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 250 flight time total : 6500 flight time type : 250
ASRS Report	282669
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : instrument pilot : commercial
Events
Anomaly	other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : unspecified other flight crewa
Resolutory Action	none taken : anomaly accepted
Consequence	Other
Supplementary
Primary Problem	Navigational Facility
Air Traffic Incident	other
Situations
Navigational Aid	Unspecified

Narrative:

Air carrier X continued problems navigating on V218 airway inside of changeover point. Full scale deflections and erratic needle swings. Observed this problem over many months with many different aircraft (same model).

Original NASA ASRS Text

Title: ACR X CONTINUED NAVAID FLUCTUATIONS ON THE LAN VOR.

Narrative: ACR X CONTINUED PROBS NAVING ON V218 AIRWAY INSIDE OF CHANGEOVER POINT. FULL SCALE DEFLECTIONS AND ERRATIC NEEDLE SWINGS. OBSERVED THIS PROB OVER MANY MONTHS WITH MANY DIFFERENT ACFT (SAME MODEL).

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.