<< >> NASA ASRS Report 605931, January 2004

B737-800 crew had an altitude deviation in msp class B airspace after the crew did not operate the FMC and altitude alert properly.

Attributes
ACN	605931
Time
Date	200401
Day	Sun
Local Time Of Day	1201 To 1800
Place
Locale Reference	navaid : msp.vortac
State Reference	MN
Altitude	msl single value : 2000
Environment
Flight Conditions	Mixed
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : m98.tracon
Operator	common carrier : air carrier
Make Model Name	B737-800
Operating Under FAR Part	Part 121
Flight Phase	descent : approach descent : intermediate altitude
Route In Use	approach : visual
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Experience	flight time last 90 days : 100 flight time total : 12000 flight time type : 100
ASRS Report	605931
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Events
Anomaly	altitude deviation : excursion from assigned altitude
Independent Detector	atc equipment other atc equipment : radar other controllera
Resolutory Action	controller : issued new clearance controller : issued alert
Supplementary
Problem Areas	Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

While transition from vectors to visual approach clearance, momentary confusion of VNAV/LNAV caused descent to MVA. Approach brought to our attention, leveled, no further conflicts.

Related reports:

• A B737-800 flight suffers an altitude deviation when the app...
• Altitude deviation altitude overshot by the flight crew of a...
• B737-800 has an altitude deviation during descent on the KOR...
• Altitude deviation altitude overshot by a B737-800 flight cr...

	Enter your search terms Submit search form
	Web www.37000feet.com

Original NASA ASRS Text

Title: B737-800 CREW HAD AN ALTDEV IN MSP CLASS B AIRSPACE AFTER THE CREW DID NOT OPERATE THE FMC AND ALT ALERT PROPERLY.

Narrative: WHILE TRANSITION FROM VECTORS TO VISUAL APCH CLRNC, MOMENTARY CONFUSION OF VNAV/LNAV CAUSED DSCNT TO MVA. APCH BROUGHT TO OUR ATTN, LEVELED, NO FURTHER CONFLICTS.

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.