B737 ng flight crew reported receiving a low altitude alert from ATC after executing a missed approa...

Attributes
ACN	1432222
Time
Date	201703
Local Time Of Day	0601-1200
Place
Locale Reference	SAN.Airport
State Reference	CA
Aircraft 1
Make Model Name	B737 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	Final Approach
Flight Plan	IFR
Person 1
Function	Pilot Not Flying Captain
Qualification	Flight Crew Air Transport Pilot (ATP)
Person 2
Function	Pilot Flying First Officer
Events
Anomaly	ATC Issue All Types Deviation - Procedural Published Material / Policy Inflight Event / Encounter Weather / Turbulence Inflight Event / Encounter CFTT / CFIT

Narrative:

Conditions on arrival in san were 300 ovc; 1 1/4 vis; light winds. The first officer was flying. At minimums we did not see the airport and the first officer executed a go around. Procedures and call outs were perfect. He called 'check power' and I did. It was approximately 85% N1. Prior to 400 ft; ATC gave us instructions and I read them back with a incorrect altitude. As I was with ATC getting the instructions; the first officer called for 'level change; set clean maneuvering and flaps 5.' at this time; ATC asked us our altitude and said he received a low altitude warning. We replied 1100 ft. We were VFR above the cloud layer and clear of any obstacles when they asked about our altitude. We realized at this time we had not re-engaged the autothrottles. We engaged the auto throttle and the power setting was a little low. ATC instructed us for holding and a subsequent approach with a successful landing as the fog was lifting.

Original NASA ASRS Text

Title: B737 NG flight crew reported receiving a low altitude alert from ATC after executing a missed approach from SAN. Lack of autoflight mode awareness was cited as contributing.

Narrative: Conditions on arrival in SAN were 300 OVC; 1 1/4 vis; light winds. The FO was flying. At minimums we did not see the airport and the FO executed a go around. Procedures and call outs were perfect. He called 'check power' and I did. It was approximately 85% N1. Prior to 400 ft; ATC gave us instructions and I read them back with a incorrect altitude. As I was with ATC getting the instructions; the FO called for 'Level change; Set clean maneuvering and flaps 5.' At this time; ATC asked us our altitude and said he received a low altitude warning. We replied 1100 ft. We were VFR above the cloud layer and clear of any obstacles when they asked about our altitude. We realized at this time we had not re-engaged the autothrottles. We engaged the auto throttle and the power setting was a little low. ATC instructed us for holding and a subsequent approach with a successful landing as the fog was lifting.

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 ng flight crew reported receiving a low altitude alert from ATC after executing a missed approach from san. Lack of autoflight mode awareness was cited as contributing.