<< >> NASA ASRS Report 509918, May 2001

MD88 crew questioned the legality of the localizer runway 27 approach at san with the localizer notamed as unusable inside 1 pt 8 DME.

Attributes
ACN	509918
Time
Date	200105
Day	Tue
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : san.airport
State Reference	CA
Environment
Flight Conditions	IMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : sct.tracon tower : hya.tower
Operator	common carrier : air carrier
Make Model Name	MD-88
Operating Under FAR Part	Part 121
Navigation In Use	ils localizer only : 27 other
Flight Phase	descent : approach
Route In Use	approach : instrument non precision arrival : on vectors
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 300 flight time total : 5000 flight time type : 4500
ASRS Report	509918
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : multi engine pilot : commercial pilot : instrument
Events
Independent Detector	other flight crewa other flight crewb
Resolutory Action	none taken : anomaly accepted
Consequence	other
Supplementary
Problem Areas	Navigational Facility FAA
Primary Problem	Flight Crew Human Performance

Narrative:

On approach to runway 27 lindberg field in san. ATIS reported localizer unusable inside 1.8 DME. WX was 700 ft overcast, 2 1/2 mi. Missed approach point is at 1.3 DME on the localizer. Approach cleared us and numerous other air carrier flts for the approach, and had us stacked up very close together. After landing, I questioned our company operations specifications expert and he believes the approach was illegal to fly. We broke out and landed without incident with no comments from approach or tower. Callback conversation with a quality assurance specialist at the san tower revealed the following information: the localizer was not able to pass a flight check inside the 1.8 DME point. This was the reason for the NOTAM. A localizer runway 27 approach chart change has been made moving the map to the 1.8 DME point. As soon as the chart revision cycle is complete the change will be in the pilots' books. This would appear to solve the problem.

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Original NASA ASRS Text

Title: MD88 CREW QUESTIONED THE LEGALITY OF THE LOC RWY 27 APCH AT SAN WITH THE LOC NOTAMED AS UNUSABLE INSIDE 1 PT 8 DME.

Narrative: ON APCH TO RWY 27 LINDBERG FIELD IN SAN. ATIS RPTED LOC UNUSABLE INSIDE 1.8 DME. WX WAS 700 FT OVCST, 2 1/2 MI. MISSED APCH POINT IS AT 1.3 DME ON THE LOC. APCH CLRED US AND NUMEROUS OTHER ACR FLTS FOR THE APCH, AND HAD US STACKED UP VERY CLOSE TOGETHER. AFTER LNDG, I QUESTIONED OUR COMPANY OPS SPECS EXPERT AND HE BELIEVES THE APCH WAS ILLEGAL TO FLY. WE BROKE OUT AND LANDED WITHOUT INCIDENT WITH NO COMMENTS FROM APCH OR TWR. CALLBACK CONVERSATION WITH A QUALITY ASSURANCE SPECIALIST AT THE SAN TWR REVEALED THE FOLLOWING INFO: THE LOC WAS NOT ABLE TO PASS A FLT CHK INSIDE THE 1.8 DME POINT. THIS WAS THE REASON FOR THE NOTAM. A LOC RWY 27 APCH CHART CHANGE HAS BEEN MADE MOVING THE MAP TO THE 1.8 DME POINT. AS SOON AS THE CHART REVISION CYCLE IS COMPLETE THE CHANGE WILL BE IN THE PLTS' BOOKS. THIS WOULD APPEAR TO SOLVE THE PROB.

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.