<< >> NASA ASRS Report 491940, November 2000

An air carrier captain, departing from london, failed to set the proper altimeter setting which caused an altitude overshoot of 700 ft.

Attributes
ACN	491940
Time
Date	200011
Day	Tue
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : egtt.airport
State Reference	FO
Altitude	msl bound lower : 5000 msl bound upper : 8700
Environment
Flight Conditions	VMC
Weather Elements	Thunderstorm
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : egtt.artcc
Operator	common carrier : air carrier
Make Model Name	Widebody, Low Wing, 3 Turbojet Eng
Operating Under FAR Part	Part 121
Navigation In Use	other
Flight Phase	climbout : takeoff climbout : vacating altitude
Route In Use	departure sid : ns
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp pilot : flight engineer pilot : multi engine
Experience	flight time last 90 days : 210 flight time total : 13000 flight time type : 5000
ASRS Report	491940
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : multi engine pilot : instrument pilot : commercial
Events
Anomaly	altitude deviation : overshoot non adherence : clearance non adherence : published procedure
Independent Detector	other controllera
Resolutory Action	controller : issued new clearance
Consequence	faa : reviewed incident with flight crew other
Supplementary
Problem Areas	Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

After takeoff with an improper, low altimeter setting of 972 hpa (hectopascals), we were cleared to 5000 ft (transition altitude was 6000 ft). As we approached 5000 ft, we were reclred to FL80, given direct elyd, and given a frequency change. By the time clearance was read back and frequency changed, we leveled at 8000 ft instead of FL80, due to the wrong altimeter setting. (We never had time to change to the proper setting of 1013 hpa.) upon checking in on new frequency, london questioned our altitude. I read back FL80, then reset altitude to 1013 hpa. The altimeter jumped to 8700 ft or FL087. London reclred us to FL110. There was no traffic and london didn't seem concerned.

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Original NASA ASRS Text

Title: AN ACR CAPT, DEPARTING FROM LONDON, FAILED TO SET THE PROPER ALTIMETER SETTING WHICH CAUSED AN ALT OVERSHOOT OF 700 FT.

Narrative: AFTER TKOF WITH AN IMPROPER, LOW ALTIMETER SETTING OF 972 HPA (HECTOPASCALS), WE WERE CLRED TO 5000 FT (TRANSITION ALT WAS 6000 FT). AS WE APCHED 5000 FT, WE WERE RECLRED TO FL80, GIVEN DIRECT ELYD, AND GIVEN A FREQ CHANGE. BY THE TIME CLRNC WAS READ BACK AND FREQ CHANGED, WE LEVELED AT 8000 FT INSTEAD OF FL80, DUE TO THE WRONG ALTIMETER SETTING. (WE NEVER HAD TIME TO CHANGE TO THE PROPER SETTING OF 1013 HPA.) UPON CHKING IN ON NEW FREQ, LONDON QUESTIONED OUR ALT. I READ BACK FL80, THEN RESET ALT TO 1013 HPA. THE ALTIMETER JUMPED TO 8700 FT OR FL087. LONDON RECLRED US TO FL110. THERE WAS NO TFC AND LONDON DIDN'T SEEM CONCERNED.

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.