Reporter has suggestions for improving chart depiction of runways and approachs.

Attributes
ACN	131568
Time
Date	198912
Day	Tue
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : iad
State Reference	VA
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Flight Phase	landing 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 : 200 flight time total : 13000 flight time type : 6000
ASRS Report	131568
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Events
Anomaly	other anomaly other
Independent Detector	other flight crewa
Resolutory Action	other
Consequence	Other
Supplementary
Air Traffic Incident	other
Situations
Airport	procedure or policy : unspecified

Narrative:

Dulles approachs area (referred to verbally) ILS 1R, ILS 1L, ILS 1 runway 1-9r, ILS 1 runway 1-9l, etc. Using #'south to differentiate between 2 approachs to the same runway is a confusing practice. Suggestions: use letters. (Yes, I now they are presently used only with np approachs, but so what? Why would it be a problem to simply change the rule?) or, if that's rejected, how about: big #'south (bigger than the name of the runway. For example, ILS 99 to 19L, or ILS 40 to 3R, or the ever popular ILS 69 to 12R).

Original NASA ASRS Text

Title: REPORTER HAS SUGGESTIONS FOR IMPROVING CHART DEPICTION OF RWYS AND APCHS.

Narrative: DULLES APCHS AREA (REFERRED TO VERBALLY) ILS 1R, ILS 1L, ILS 1 RWY 1-9R, ILS 1 RWY 1-9L, ETC. USING #'S TO DIFFERENTIATE BTWN 2 APCHS TO THE SAME RWY IS A CONFUSING PRACTICE. SUGGESTIONS: USE LETTERS. (YES, I NOW THEY ARE PRESENTLY USED ONLY WITH NP APCHS, BUT SO WHAT? WHY WOULD IT BE A PROB TO SIMPLY CHANGE THE RULE?) OR, IF THAT'S REJECTED, HOW ABOUT: BIG #'S (BIGGER THAN THE NAME OF THE RWY. FOR EXAMPLE, ILS 99 TO 19L, OR ILS 40 TO 3R, OR THE EVER POPULAR ILS 69 TO 12R).

Data retrieved from NASA's ASRS site as of August 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.