Air carrier widebody transport flight crew mistakes altimeter setting expressed in hectopascals for altimeter in inches resulting in initially being 600' low on approach to hkg.

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Attributes
ACN	154324
Time
Date	199008
Day	Sat
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : hkg
State Reference	FO
Altitude	msl bound lower : 3500 msl bound upper : 4100
Environment
Flight Conditions	VMC
Light	Dusk
Aircraft 1
Controlling Facilities	tracon : hkg
Operator	common carrier : air carrier
Make Model Name	Widebody, Low Wing, 4 Turbojet Eng
Flight Phase	descent : approach
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : flight engineer pilot : atp pilot : commercial pilot : instrument
Experience	flight time last 90 days : 100 flight time total : 11000 flight time type : 3500
ASRS Report	154324
Person 2
Affiliation	company : air carrier
Function	flight crew : second officer
Qualification	pilot : flight engineer
Events
Anomaly	altitude deviation : excursion from assigned altitude altitude deviation : overshoot non adherence : clearance other anomaly other other spatial deviation
Independent Detector	other flight crewa
Resolutory Action	flight crew : returned to intended course or assigned course
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

On descent into hkg the second officer handed up the ATIS information, 'runway 31 ILS, visibility 10 KM, 4/8 cloud at 4000', altimeter 29.92 inches (the cloud cover is approximately, we were mostly VFR at 3500). In truth, the altimeter setting was 992 hp. We flew the final (long straight in) approximately 600' low until G/south intercept at approximately 9 mi from T/D, then flew on G/south to T/D. I feel we were very lucky to have flown this particular approach over water. In the future, all our ATIS altimeter information will be labeled MB, hp, or in.

Original NASA ASRS Text

Title: ACR WDB FLT CREW MISTAKES ALTIMETER SETTING EXPRESSED IN HECTOPASCALS FOR ALTIMETER IN INCHES RESULTING IN INITIALLY BEING 600' LOW ON APCH TO HKG.

Narrative: ON DSNT INTO HKG THE S/O HANDED UP THE ATIS INFO, 'RWY 31 ILS, VIS 10 KM, 4/8 CLOUD AT 4000', ALTIMETER 29.92 INCHES (THE CLOUD COVER IS APPROX, WE WERE MOSTLY VFR AT 3500). IN TRUTH, THE ALTIMETER SETTING WAS 992 HP. WE FLEW THE FINAL (LONG STRAIGHT IN) APPROX 600' LOW UNTIL G/S INTERCEPT AT APPROX 9 MI FROM T/D, THEN FLEW ON G/S TO T/D. I FEEL WE WERE VERY LUCKY TO HAVE FLOWN THIS PARTICULAR APCH OVER WATER. IN THE FUTURE, ALL OUR ATIS ALTIMETER INFO WILL BE LABELED MB, HP, OR IN.

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.