Lda approach evaluation.

Attributes
ACN	307460
Time
Date	199506
Day	Thu
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : sfo
State Reference	CA
Altitude	msl bound lower : 11 msl bound upper : 7000
Environment
Flight Conditions	Mixed
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : oak tower : sfo
Operator	common carrier : air carrier
Make Model Name	B747-400
Operating Under FAR Part	Part 121
Navigation In Use	Other Other
Flight Phase	descent : approach other
Route In Use	arrival other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp pilot : commercial pilot : instrument
Experience	flight time last 90 days : 250 flight time total : 6000 flight time type : 2100
ASRS Report	307460
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
ASRS Report	308131
Events
Anomaly	other anomaly other other anomaly other
Independent Detector	other flight crewa
Resolutory Action	none taken : unable
Consequence	Other
Supplementary
Air Traffic Incident	other

Narrative:

Lda not in database. Even hard tuned aircraft did not follow captured localizer. Verified with tower and hard tuned frequency for lda. Workload excessive. More advance notice of intent to assign lda would be appropriate. Not comfortable with approach assigned. Glad it was daylight and mostly VFR. Supplemental information from acn 308131: approach not in database - - had to be built manually on short notice -- while on excessive (3) vectors (vectored through course) before cleared for approach.

Original NASA ASRS Text

Title: LDA APCH EVALUATION.

Narrative: LDA NOT IN DATABASE. EVEN HARD TUNED ACFT DID NOT FOLLOW CAPTURED LOC. VERIFIED WITH TWR AND HARD TUNED FREQ FOR LDA. WORKLOAD EXCESSIVE. MORE ADVANCE NOTICE OF INTENT TO ASSIGN LDA WOULD BE APPROPRIATE. NOT COMFORTABLE WITH APCH ASSIGNED. GLAD IT WAS DAYLIGHT AND MOSTLY VFR. SUPPLEMENTAL INFO FROM ACN 308131: APCH NOT IN DATABASE - - HAD TO BE BUILT MANUALLY ON SHORT NOTICE -- WHILE ON EXCESSIVE (3) VECTORS (VECTORED THROUGH COURSE) BEFORE CLRED FOR APCH.

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.