GA pilot experiences NOTAM difficulties and perceived potential conflict on the ground at bwi.

Attributes
ACN	154607
Time
Date	199008
Day	Thu
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : bwi
State Reference	MD
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Controlling Facilities	tower : dal
Operator	general aviation : personal
Make Model Name	Small Transport, Low Wing, 2 Recip Eng
Flight Phase	ground other : taxi
Flight Plan	VFR
Person 1
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : instrument pilot : cfi pilot : commercial
Experience	flight time last 90 days : 70 flight time total : 1300 flight time type : 500
ASRS Report	154607
Person 2
Affiliation	government : faa
Function	controller : local
Qualification	controller : non radar
Events
Anomaly	other anomaly other
Independent Detector	other flight crewa
Resolutory Action	other
Consequence	Other
Supplementary
Primary Problem	Ambiguous
Air Traffic Incident	other

Narrative:

On approach into the airport, I was instructed to contact tower for landing. The frequency was different than depicted on the IAP and was not disclosed during WX briefing by FSS as a NOTAM. The sudden change in the final approach segment resulted in my selecting a radio whose vol was turned down, hence multi xmissions were required before I realized my error. Upon landing, tower advised that I should taxi to my destination and that there was no need to contact ground, due to the FBO's close proximity to the taxiway. However, while taxiing, I noticed a commuter jet leaving the same FBO. Believing this to be a safety hazard, I contacted ground and indicated my intentions. I asked the FBO when the tower frequency had been changed and it had occurred the first of the month. In summary, I would like to see an improvement in the NOTAM system to have a response time of 24 hours from when it is reported to be available to pilots. Second, when at a busy airport, aircraft should always contact ground control to avoid potential ground accidents.

Original NASA ASRS Text

Title: GA PLT EXPERIENCES NOTAM DIFFICULTIES AND PERCEIVED POTENTIAL CONFLICT ON THE GND AT BWI.

Narrative: ON APCH INTO THE ARPT, I WAS INSTRUCTED TO CONTACT TWR FOR LNDG. THE FREQ WAS DIFFERENT THAN DEPICTED ON THE IAP AND WAS NOT DISCLOSED DURING WX BRIEFING BY FSS AS A NOTAM. THE SUDDEN CHANGE IN THE FINAL APCH SEGMENT RESULTED IN MY SELECTING A RADIO WHOSE VOL WAS TURNED DOWN, HENCE MULTI XMISSIONS WERE REQUIRED BEFORE I REALIZED MY ERROR. UPON LNDG, TWR ADVISED THAT I SHOULD TAXI TO MY DEST AND THAT THERE WAS NO NEED TO CONTACT GND, DUE TO THE FBO'S CLOSE PROX TO THE TXWY. HOWEVER, WHILE TAXIING, I NOTICED A COMMUTER JET LEAVING THE SAME FBO. BELIEVING THIS TO BE A SAFETY HAZARD, I CONTACTED GND AND INDICATED MY INTENTIONS. I ASKED THE FBO WHEN THE TWR FREQ HAD BEEN CHANGED AND IT HAD OCCURRED THE FIRST OF THE MONTH. IN SUMMARY, I WOULD LIKE TO SEE AN IMPROVEMENT IN THE NOTAM SYS TO HAVE A RESPONSE TIME OF 24 HRS FROM WHEN IT IS RPTED TO BE AVAILABLE TO PLTS. SECOND, WHEN AT A BUSY ARPT, ACFT SHOULD ALWAYS CONTACT GND CTL TO AVOID POTENTIAL GND ACCIDENTS.

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.