<< >> NASA ASRS Report 616215, May 2004

Flight crew of B767 departing egcc on wallasey departure incorrectly set standard altimeter while cleared only to the transition altitude not above.

Attributes
ACN	616215
Time
Date	200405
Day	Sun
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : egcc.airport
State Reference	FO
Altitude	msl single value : 5000
Environment
Flight Conditions	Mixed
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : egcc.tracon
Operator	common carrier : air carrier
Make Model Name	B767 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	climbout : intermediate altitude
Route In Use	departure sid : wallasley
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : flight engineer pilot : instrument pilot : multi engine pilot : atp pilot : commercial
Experience	flight time last 90 days : 150 flight time total : 5000 flight time type : 450
ASRS Report	616215
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 280 flight time total : 18000 flight time type : 300
ASRS Report	616656
Events
Anomaly	altitude deviation : crossing restriction not met altitude deviation : undershoot non adherence : clearance non adherence : far non adherence : published procedure
Independent Detector	other controllera
Resolutory Action	controller : issued new clearance other
Supplementary
Problem Areas	Aircraft Company Flight Crew Human Performance Airspace Structure
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

On wallasey 1, yankee departure from egcc, we took off with altimeter setting of 0996 MB made xings of at or above 2500 ft at 257 degrees/8 DME, at or above 4000 ft at 257 degrees/13 DME and then changed to standard altimeter of 1013 MB approaching the transition altitude of 5000 ft. We were already above 5000 ft and had to descend 500 ft to get to 5000 ft. We were in VNAV. We had 5000 ft in the MCP. We found that the altimeter reads 1000 ft higher with 1013 MB set than with 0966 MB set. Our procedures manual says to set standard altimeter approaching the transition altitude. This caused confusion and required a 500 ft descent to go from 4500 ft to 5000 ft. The SID has a hard altitude of 5000 ft. It should either read 5000 ft or the transition altitude should be changed to 6000 ft. This is too ambiguous. Supplemental information from acn 616656: there was no other traffic on the TCASII and no loss of separation.

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Original NASA ASRS Text

Title: FLT CREW OF B767 DEPARTING EGCC ON WALLASEY DEP INCORRECTLY SET STANDARD ALTIMETER WHILE CLRED ONLY TO THE TRANSITION ALT NOT ABOVE.

Narrative: ON WALLASEY 1, YANKEE DEP FROM EGCC, WE TOOK OFF WITH ALTIMETER SETTING OF 0996 MB MADE XINGS OF AT OR ABOVE 2500 FT AT 257 DEGS/8 DME, AT OR ABOVE 4000 FT AT 257 DEGS/13 DME AND THEN CHANGED TO STANDARD ALTIMETER OF 1013 MB APCHING THE TRANSITION ALT OF 5000 FT. WE WERE ALREADY ABOVE 5000 FT AND HAD TO DSND 500 FT TO GET TO 5000 FT. WE WERE IN VNAV. WE HAD 5000 FT IN THE MCP. WE FOUND THAT THE ALTIMETER READS 1000 FT HIGHER WITH 1013 MB SET THAN WITH 0966 MB SET. OUR PROCS MANUAL SAYS TO SET STANDARD ALTIMETER APCHING THE TRANSITION ALT. THIS CAUSED CONFUSION AND REQUIRED A 500 FT DSCNT TO GO FROM 4500 FT TO 5000 FT. THE SID HAS A HARD ALT OF 5000 FT. IT SHOULD EITHER READ 5000 FT OR THE TRANSITION ALT SHOULD BE CHANGED TO 6000 FT. THIS IS TOO AMBIGUOUS. SUPPLEMENTAL INFO FROM ACN 616656: THERE WAS NO OTHER TFC ON THE TCASII AND 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.