Wrong altimeter setting in level off at FL350 creates an altitude deviation altitude excursion altitude overshot. Alert ARTCC radar controller alerts flight crew.

Home

Browse by month

Random

Latest

About

Contact

Attributes
ACN	191470
Time
Date	199110
Day	Sat
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : zbw
State Reference	MA
Altitude	msl bound lower : 35000 msl bound upper : 35400
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zbw
Operator	common carrier : air carrier
Make Model Name	Widebody, Low Wing, 3 Turbojet Eng
Navigation In Use	Other
Flight Phase	climbout : intermediate altitude cruise other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : instrument pilot : atp pilot : commercial
Experience	flight time last 90 days : 90 flight time total : 13100 flight time type : 920
ASRS Report	191470
Person 2
Affiliation	company : air carrier
Function	flight crew : second officer
Qualification	pilot : atp pilot : instrument pilot : flight engineer
Experience	flight time last 90 days : 209 flight time total : 11264 flight time type : 1924
ASRS Report	191469
Events
Anomaly	altitude deviation : overshoot non adherence : clearance non adherence : far non adherence : published procedure
Independent Detector	other controllera
Resolutory Action	flight crew : returned to assigned altitude other
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

The altimeter setting at bos, the point of departure, was a very low 29.52. On climb out to FL350 there were many distrs as well as having a first officer who had been on reserve and only flown 2 trips since jun/xx/91. Due to the numerous distrs 29.92 was not set at FL180 causing the aircraft to level off approximately 400 ft high. Center brought this to our attention. We set 29.92 and leveled at 350 without further incident. This incident was caused by distrs causing a breakdown in the 180 checklist. Supplemental information from acn 191469: contributing factors included distrs during the climb from a conversation with the lead flight attendant concerning the scheduling of the captain's address to the passenger, the short flight time and the difficulty expected in completing the movie during the flight.

Original NASA ASRS Text

Title: WRONG ALTIMETER SETTING IN LEVEL OFF AT FL350 CREATES AN ALTDEV ALT EXCURSION ALT OVERSHOT. ALERT ARTCC RADAR CTLR ALERTS FLT CREW.

Narrative: THE ALTIMETER SETTING AT BOS, THE POINT OF DEP, WAS A VERY LOW 29.52. ON CLBOUT TO FL350 THERE WERE MANY DISTRS AS WELL AS HAVING A FO WHO HAD BEEN ON RESERVE AND ONLY FLOWN 2 TRIPS SINCE JUN/XX/91. DUE TO THE NUMEROUS DISTRS 29.92 WAS NOT SET AT FL180 CAUSING THE ACFT TO LEVEL OFF APPROX 400 FT HIGH. CENTER BROUGHT THIS TO OUR ATTN. WE SET 29.92 AND LEVELED AT 350 WITHOUT FURTHER INCIDENT. THIS INCIDENT WAS CAUSED BY DISTRS CAUSING A BREAKDOWN IN THE 180 CHKLIST. SUPPLEMENTAL INFO FROM ACN 191469: CONTRIBUTING FACTORS INCLUDED DISTRS DURING THE CLB FROM A CONVERSATION WITH THE LEAD FLT ATTENDANT CONCERNING THE SCHEDULING OF THE CAPT'S ADDRESS TO THE PAX, THE SHORT FLT TIME AND THE DIFFICULTY EXPECTED IN COMPLETING THE MOVIE DURING THE FLT.

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.