Altitude deviation altitude undershot during climb.

Attributes
ACN	297090
Time
Date	199502
Day	Fri
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : iad
State Reference	VA
Altitude	msl bound lower : 19500 msl bound upper : 20000
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Controlling Facilities	artcc : zdc
Operator	common carrier : air carrier
Make Model Name	Commercial Fixed Wing
Operating Under FAR Part	Part 121
Flight Phase	climbout : intermediate altitude cruise other cruise other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp pilot : flight engineer
Experience	flight time last 90 days : 120 flight time total : 6750 flight time type : 2500
ASRS Report	297090
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : cfi pilot : atp pilot : flight engineer
Experience	flight time last 90 days : 60 flight time total : 5500 flight time type : 1000
ASRS Report	297362
Events
Anomaly	altitude deviation : undershoot non adherence : clearance other anomaly other
Independent Detector	other controllera
Resolutory Action	flight crew : became reoriented flight crew : returned to intended course or assigned course other
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

On climb out from 16000 ft to FL200, we were asked to expedite through FL180. While doing this we were also changing over navigation. After arriving at FL200, we were notified by center that they showed us 500 ft low. We recycled our transponder, then noticed that our altimeters were still set at 30.43. We adjusted our altimeters then corrected our altitude. The remainder of the flight was uneventful. Supplemental information from acn 297362: during an expedited climb through FL180, the controller could verify altimeter setting at leveloff so this could not happen again.

Original NASA ASRS Text

Title: ALTDEV ALT UNDERSHOT DURING CLB.

Narrative: ON CLBOUT FROM 16000 FT TO FL200, WE WERE ASKED TO EXPEDITE THROUGH FL180. WHILE DOING THIS WE WERE ALSO CHANGING OVER NAV. AFTER ARRIVING AT FL200, WE WERE NOTIFIED BY CTR THAT THEY SHOWED US 500 FT LOW. WE RECYCLED OUR XPONDER, THEN NOTICED THAT OUR ALTIMETERS WERE STILL SET AT 30.43. WE ADJUSTED OUR ALTIMETERS THEN CORRECTED OUR ALT. THE REMAINDER OF THE FLT WAS UNEVENTFUL. SUPPLEMENTAL INFO FROM ACN 297362: DURING AN EXPEDITED CLB THROUGH FL180, THE CTLR COULD VERIFY ALTIMETER SETTING AT LEVELOFF SO THIS COULD NOT HAPPEN AGAIN.

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.