B737-700 crew was required to manually build the FMC approach at guatemala city, mggt.

Attributes
ACN	507584
Time
Date	200104
Day	Sat
Place
Locale Reference	airport : mggt.airport
State Reference	FO
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	B737-700
Operating Under FAR Part	Part 121
Navigation In Use	ils localizer only : 01
Flight Phase	descent : approach
Route In Use	approach : instrument precision
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
ASRS Report	507584
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Events
Anomaly	non adherence : published procedure non adherence : company policies other anomaly other
Independent Detector	other flight crewa other flight crewb
Resolutory Action	other
Consequence	other
Supplementary
Problem Areas	Company Aircraft
Primary Problem	Company

Narrative:

Gua approachs. I would like to express my concern about the way we fly approachs into gua. Since I checked out to gua several months ago, I've had the opportunity to fly with quite a few different capts. Virtually all of them had a different technique on how to build the approach to runway 1. I think this is dangerous. A standard approach ought to be built into the database, or we should be given a standard way of constructing the approach. On several occasions we have overshot the 7 DME limit due to winds and while it was day VFR and there was no danger, a conservative method of constructing the approach ought to be the norm. Callback conversation with reporter revealed the following information: crew flies the B737-700 aircraft. The air carrier has the ILS DME 1, runway 1 approach in the database. The crews prefer the ILS DME 2, runway 1 approach because it is further from the high terrain sse of the airport. After receiving the pilot's report, the air carrier agreed with him. The requested approach is being added to the FMC database and the unused approach is being removed.

Original NASA ASRS Text

Title: B737-700 CREW WAS REQUIRED TO MANUALLY BUILD THE FMC APCH AT GUATEMALA CITY, MGGT.

Narrative: GUA APCHS. I WOULD LIKE TO EXPRESS MY CONCERN ABOUT THE WAY WE FLY APCHS INTO GUA. SINCE I CHKED OUT TO GUA SEVERAL MONTHS AGO, I'VE HAD THE OPPORTUNITY TO FLY WITH QUITE A FEW DIFFERENT CAPTS. VIRTUALLY ALL OF THEM HAD A DIFFERENT TECHNIQUE ON HOW TO BUILD THE APCH TO RWY 1. I THINK THIS IS DANGEROUS. A STANDARD APCH OUGHT TO BE BUILT INTO THE DATABASE, OR WE SHOULD BE GIVEN A STANDARD WAY OF CONSTRUCTING THE APCH. ON SEVERAL OCCASIONS WE HAVE OVERSHOT THE 7 DME LIMIT DUE TO WINDS AND WHILE IT WAS DAY VFR AND THERE WAS NO DANGER, A CONSERVATIVE METHOD OF CONSTRUCTING THE APCH OUGHT TO BE THE NORM. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: CREW FLIES THE B737-700 ACFT. THE ACR HAS THE ILS DME 1, RWY 1 APCH IN THE DATABASE. THE CREWS PREFER THE ILS DME 2, RWY 1 APCH BECAUSE IT IS FURTHER FROM THE HIGH TERRAIN SSE OF THE ARPT. AFTER RECEIVING THE PLT'S RPT, THE ACR AGREED WITH HIM. THE REQUESTED APCH IS BEING ADDED TO THE FMC DATABASE AND THE UNUSED APCH IS BEING REMOVED.

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.