The reporter checked the DME at niley 5 times and finds it to be 7.3 vice the published 6.3.

Attributes
ACN	216187
Time
Date	199207
Day	Tue
Local Time Of Day	1801 To 2400
Place
Locale Reference	atc facility : bfl airport : bfc
State Reference	CA
Altitude	agl bound lower : 1851 agl bound upper : 1851
Environment
Flight Conditions	VMC
Light	Dusk
Aircraft 1
Controlling Facilities	tracon : bfc tower : bfc
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Flight Phase	descent : approach landing other
Route In Use	approach : visual arrival other enroute airway : bfc
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 : 6000 flight time type : 2000
ASRS Report	216187
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : instrument
Events
Anomaly	other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : unspecified other flight crewa
Resolutory Action	none taken : unable other
Consequence	Other
Supplementary
Primary Problem	Chart Or Publication
Air Traffic Incident	other
Situations
Navigational Aid	Unspecified

Narrative:

The outer marker to runway 30R at bfl is idented on the approach plate as being at 6.3 DME and crossing at 1851 AGL. After flying into bfl several times this month, I noticed that the marker crossing heights were always off. The last time we flew right on GS, and at 7.3 DME we crossed the OM at 1851 ft AGL. At 6.3 DME our altitude was 1500 ft AGL and 2000 ft MLS. I believe that the published 6.3 DME is in error and 7.3 DME should be on the approach chart. Callback conversation with reporter revealed the following information. The reporting pilot is a graduate of the FAA flight academy and then did flight check work for the air force. Twice he noticed that the altitude or distance at niley seemed wrong. He then very carefully checked 3 more times, all in one month, and the needle swung at 1851 ft, but the DME read 7.3 mi. He hopes that we can get the FAA to check this, and have the commercial chart company correct their presentation. The department of commerce chart also shows 6.3 mi at niley.

Original NASA ASRS Text

Title: THE RPTR CHKED THE DME AT NILEY 5 TIMES AND FINDS IT TO BE 7.3 VICE THE PUBLISHED 6.3.

Narrative: THE OUTER MARKER TO RWY 30R AT BFL IS IDENTED ON THE APCH PLATE AS BEING AT 6.3 DME AND XING AT 1851 AGL. AFTER FLYING INTO BFL SEVERAL TIMES THIS MONTH, I NOTICED THAT THE MARKER XING HEIGHTS WERE ALWAYS OFF. THE LAST TIME WE FLEW RIGHT ON GS, AND AT 7.3 DME WE CROSSED THE OM AT 1851 FT AGL. AT 6.3 DME OUR ALT WAS 1500 FT AGL AND 2000 FT MLS. I BELIEVE THAT THE PUBLISHED 6.3 DME IS IN ERROR AND 7.3 DME SHOULD BE ON THE APCH CHART. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO. THE RPTING PLT IS A GRADUATE OF THE FAA FLT ACADEMY AND THEN DID FLT CHK WORK FOR THE AIR FORCE. TWICE HE NOTICED THAT THE ALT OR DISTANCE AT NILEY SEEMED WRONG. HE THEN VERY CAREFULLY CHKED 3 MORE TIMES, ALL IN ONE MONTH, AND THE NEEDLE SWUNG AT 1851 FT, BUT THE DME READ 7.3 MI. HE HOPES THAT WE CAN GET THE FAA TO CHK THIS, AND HAVE THE COMMERCIAL CHART COMPANY CORRECT THEIR PRESENTATION. THE DEPT OF COMMERCE CHART ALSO SHOWS 6.3 MI AT NILEY.

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.