B737 captain reported being vectored off the mnzno 2 RNAV after yuglu for terrain when the aircraft ...

Narrative:

Departing abq under VFR conditions cleared to depart via the mnzno two RNAV departure off of runway 08. Engaged LNAV at 400 feet. Leveled off at yuglu at 9000 feet per the SID. Selected the assigned altitude of FL200 and engaged VNAV. All selections were verified by the pilot monitoring and myself. Within a minute; ATC assigned us a heading off of the SID for 'terrain avoidance.' we complied with the heading. No GPWS warnings or cautions were issued. I don't know if ATC was nervous because we did not start climbing immediately after the yuglu intersection; or other issues. The first officer and I were both surprised by the clearance and thought it was a little early to be issued by ATC. The flight proceeded without further incident. We both had good situational awareness of where we were and had good crew communications. We complied with fom and aom procedures. It was the first time I had flown a -300 in a while and I don't know if it was a little slow to climb or not. The correct annunciations were displayed as appropriate for the commanded selection.

Original NASA ASRS Text

Title: B737 Captain reported being vectored off the MNZNO 2 RNAV after YUGLU for terrain when the aircraft does not immediately start climbing out of 9;000 FT.

Narrative: Departing ABQ under VFR conditions cleared to depart via the MNZNO TWO RNAV Departure off of Runway 08. Engaged LNAV at 400 feet. Leveled off at YUGLU at 9000 feet per the SID. Selected the assigned altitude of FL200 and engaged VNAV. All selections were verified by the pilot monitoring and myself. Within a minute; ATC assigned us a heading off of the SID for 'terrain avoidance.' We complied with the heading. NO GPWS warnings or cautions were issued. I don't know if ATC was nervous because we did not start climbing immediately after the YUGLU intersection; or other issues. The F/O and I were both surprised by the clearance and thought it was a little early to be issued by ATC. The flight proceeded without further incident. We both had good situational awareness of where we were and had good Crew communications. We complied with FOM and AOM procedures. It was the first time I had flown a -300 in a while and I don't know if it was a little slow to climb or not. The correct annunciations were displayed as appropriate for the commanded selection.

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.

Attributes
ACN	1203336
Time
Date	201409
Local Time Of Day	0601-1200
Place
Locale Reference	ABQ.Airport
State Reference	NM
Environment
Flight Conditions	VMC
Light	Dawn
Aircraft 1
Make Model Name	B737-300
Operating Under FAR Part	Part 121
Flight Phase	Climb
Route In Use	SID MNZNO TWO
Flight Plan	IFR
Person 1
Function	Captain
Events
Anomaly	Deviation - Procedural Published Material / Policy Inflight Event / Encounter CFTT / CFIT

B737 captain reported being vectored off the mnzno 2 RNAV after yuglu for terrain when the aircraft does not immediately start climbing out of 9;000 ft.