<< >> NASA ASRS Report 517840, July 2001

An A320 flight crew forgets to set the correct altimeter setting and descends 300 ft below assigned altitude.

Attributes
ACN	517840
Time
Date	200107
Day	Wed
Local Time Of Day	1201 To 1800
Place
Locale Reference	navaid : orw.vor
State Reference	CT
Altitude	msl bound lower : 10700 msl bound upper : 11000
Environment
Flight Conditions	IMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : mei.tower
Operator	common carrier : air carrier
Make Model Name	A320
Flight Phase	descent : intermediate altitude descent : approach
Route In Use	arrival : on vectors
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 152 flight time total : 15000 flight time type : 152
ASRS Report	517840
Events
Anomaly	aircraft equipment problem : critical altitude deviation : overshoot altitude deviation : excursion from assigned altitude non adherence : published procedure non adherence : far non adherence : clearance non adherence : company policies other anomaly other
Resolutory Action	controller : issued advisory flight crew : returned to assigned altitude other
Consequence	faa : reviewed incident with flight crew
Supplementary
Problem Areas	Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Cleared from FL210 to 11000 ft, moderate turbulence, heading and vectors around thunderstorm. Did not reset or pressed 'standard' in altimeter by error. Altimeter was 29.64. Leveled off at 10700 ft. ATC queried and climbed immediately to 11000 ft. No loss of separation.

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Original NASA ASRS Text

Title: AN A320 FLT CREW FORGETS TO SET THE CORRECT ALTIMETER SETTING AND DSNDS 300 FT BELOW ASSIGNED ALT.

Narrative: CLRED FROM FL210 TO 11000 FT, MODERATE TURB, HDG AND VECTORS AROUND TSTM. DID NOT RESET OR PRESSED 'STD' IN ALTIMETER BY ERROR. ALTIMETER WAS 29.64. LEVELED OFF AT 10700 FT. ATC QUERIED AND CLBED IMMEDIATELY TO 11000 FT. NO LOSS OF SEPARATION.

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.