Sfo lda DME runway 28R evaluation.

Attributes
ACN	301964
Time
Date	199504
Day	Mon
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : sfo
State Reference	CA
Altitude	msl bound lower : 2500 msl bound upper : 2500
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : sfo tower : smf
Operator	common carrier : air carrier
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Operating Under FAR Part	Part 121
Flight Phase	descent : approach
Route In Use	arrival other
Flight Plan	IFR
Aircraft 2
Operator	common carrier : air carrier
Make Model Name	B747 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	descent : approach
Route In Use	arrival other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : instrument
ASRS Report	301964
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	other anomaly other
Independent Detector	other flight crewa
Resolutory Action	other
Consequence	Other
Supplementary
Primary Problem	Airport
Air Traffic Incident	other

Narrative:

Even though wake turbulence was not encountered I felt unduly exposed to the potential hazard when still IMC and following the profile due to the left to right crosswind carrying their wake toward us. The briefing page stresses making the steep descent gradient and doing so keeps you in a potentially hazardous position. If the lead aircraft were above the runway 28L glide path the threat is increased. I thought that a heavy would not be the lead aircraft during simultaneous procedure.

Original NASA ASRS Text

Title: SFO LDA DME RWY 28R EVALUATION.

Narrative: EVEN THOUGH WAKE TURB WAS NOT ENCOUNTERED I FELT UNDULY EXPOSED TO THE POTENTIAL HAZARD WHEN STILL IMC AND FOLLOWING THE PROFILE DUE TO THE L TO R XWIND CARRYING THEIR WAKE TOWARD US. THE BRIEFING PAGE STRESSES MAKING THE STEEP DSCNT GRADIENT AND DOING SO KEEPS YOU IN A POTENTIALLY HAZARDOUS POS. IF THE LEAD ACFT WERE ABOVE THE RWY 28L GLIDE PATH THE THREAT IS INCREASED. I THOUGHT THAT A HVY WOULD NOT BE THE LEAD ACFT DURING SIMULTANEOUS PROC.

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.