B737 captain reported the STAR altitudes and intercept altitude from moram STAR to ILS 07; does not ...

Attributes
ACN	1609498
Time
Date	201901
Local Time Of Day	1201-1800
Place
Locale Reference	MSLP.Airport
State Reference	FO
Environment
Flight Conditions	VMC
Aircraft 1
Make Model Name	B737 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	Final Approach
Route In Use	STAR MORAM1K
Flight Plan	IFR
Person 1
Function	Captain Pilot Not Flying
Qualification	Flight Crew Multiengine Flight Crew Instrument Flight Crew Air Transport Pilot (ATP)
Experience	Flight Crew Last 90 Days 158 Flight Crew Total 3245 Flight Crew Type 2770
Events
Anomaly	Aircraft Equipment Problem Less Severe Deviation - Procedural Published Material / Policy Inflight Event / Encounter Unstabilized Approach

Narrative:

Flight ZZZ-mslp. We had a late runway change and STAR assignment that resulted in being high at D 5.0 ysv on the arrival. The cause of this was the inability to modify the arrival and execute the STAR in FMC. We reverted to heading select and level change to comply with the arrival. We notified ATC of our issue and was cleared the visual approach before intercepting ILS 07 approach. It was a stable approach but the STAR altitudes and intercept altitude from moram 1K STAR to ILS 07 do not allow FMC to execute the modified route. While reviewing the 737 flight manual I found what boeing has said it 'has advised incidents' concerning these issues. It's described on FM 4.30.10 problem is in reviewing the STAR and ILS I do believe this 'sets up pilots' to not be able to successfully and safely fly the approach and arrival. [Report] will be filed and [union rep] will be notified. I believe a NOTAM or 10-7 note reflecting this should be addressed as this is time critical.

Original NASA ASRS Text

Title: B737 Captain reported the STAR altitudes and intercept altitude from MORAM STAR to ILS 07; does not allow FMC to successfully and safely execute the modified route.

Narrative: Flight ZZZ-MSLP. We had a late runway change and STAR assignment that resulted in being high at D 5.0 YSV on the arrival. The cause of this was the inability to modify the arrival and execute the STAR in FMC. We reverted to heading select and level change to comply with the arrival. We notified ATC of our issue and was cleared the visual approach before intercepting ILS 07 Approach. It was a stable approach but the STAR altitudes and intercept altitude from MORAM 1K STAR to ILS 07 do not allow FMC to execute the modified route. While reviewing the 737 Flight Manual I found what Boeing has said it 'has advised incidents' concerning these issues. It's described on FM 4.30.10 Problem is in reviewing the STAR and ILS I do believe this 'sets up pilots' to not be able to successfully and safely fly the approach and arrival. [Report] will be filed and [Union Rep] will be notified. I believe a NOTAM or 10-7 note reflecting this should be addressed as this is time critical.

Data retrieved from NASA's ASRS site 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.

B737 captain reported the STAR altitudes and intercept altitude from moram STAR to ILS 07; does not allow FMC to successfully and safely execute the modified route.