B757 captain misset qnh altimeter by 1 inch.

Attributes
ACN	454769
Time
Date	199911
Day	Tue
Local Time Of Day	0601 To 1200
Place
Locale Reference	navaid : gdm.vortac
State Reference	MA
Altitude	msl bound lower : 10300 msl bound upper : 11000
Environment
Flight Conditions	VMC VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zbw.artcc
Operator	common carrier : air carrier
Make Model Name	B757-200
Operating Under FAR Part	Part 121
Navigation In Use	other other vortac
Flight Phase	descent : vacating altitude
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Experience	flight time last 90 days : 40 flight time total : 17000 flight time type : 2500
ASRS Report	454769
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 200 flight time total : 22000 flight time type : 1
ASRS Report	454770
Events
Anomaly	altitude deviation : overshoot non adherence : far non adherence : clearance non adherence : company policies non adherence : published procedure other anomaly other
Independent Detector	other flight crewa other flight crewb
Resolutory Action	flight crew : returned to assigned altitude
Supplementary
Problem Areas	Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Clearance to cross bronc at 11000 ft, leaving FL180 PNF read preliminary checklist giving altimeter as 29.37. PF set 30.37 by mistake. Leaving 10700 ft, PNF questioned altitude. Altimeter mistake discovered and descent stopped at 10300 ft. Aircraft returned to 11000 ft. No question by ATC. All 4 digits of altimeter were read aloud during checklist. 2 additional items that I forgot to include on my original report are: 1) after the PNF stated altimeter 29.37, the PF replied 29.37 even though he set 30.37. 2) leaving 11900 ft the PNF stated 12000 ft for 11000 ft and that was also acknowledged by the PF.

Original NASA ASRS Text

Title: B757 CAPT MISSET QNH ALTIMETER BY 1 INCH.

Narrative: CLRNC TO CROSS BRONC AT 11000 FT, LEAVING FL180 PNF READ PRELIMINARY CHKLIST GIVING ALTIMETER AS 29.37. PF SET 30.37 BY MISTAKE. LEAVING 10700 FT, PNF QUESTIONED ALT. ALTIMETER MISTAKE DISCOVERED AND DSCNT STOPPED AT 10300 FT. ACFT RETURNED TO 11000 FT. NO QUESTION BY ATC. ALL 4 DIGITS OF ALTIMETER WERE READ ALOUD DURING CHKLIST. 2 ADDITIONAL ITEMS THAT I FORGOT TO INCLUDE ON MY ORIGINAL RPT ARE: 1) AFTER THE PNF STATED ALTIMETER 29.37, THE PF REPLIED 29.37 EVEN THOUGH HE SET 30.37. 2) LEAVING 11900 FT THE PNF STATED 12000 FT FOR 11000 FT AND THAT WAS ALSO ACKNOWLEDGED BY THE PF.

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.