Altitude deviation by flight crew of medium large transport departing phx.

Attributes
ACN	126756
Time
Date	198910
Day	Sat
Local Time Of Day	1801 To 2400
Place
Locale Reference	atc facility : phx
State Reference	AZ
Altitude	msl bound lower : 8000 msl bound upper : 8700
Environment
Flight Conditions	Mixed
Light	Dusk
Aircraft 1
Controlling Facilities	artcc : zab
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Navigation In Use	Other Other
Flight Phase	climbout : intermediate altitude cruise other
Route In Use	departure other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : cfi pilot : atp pilot : flight engineer pilot : instrument pilot : commercial
Experience	flight time last 90 days : 700 flight time total : 10000 flight time type : 1000
ASRS Report	126756
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	altitude deviation : overshoot non adherence : clearance other anomaly other
Independent Detector	other flight crewa
Resolutory Action	none taken : anomaly accepted
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Had just received aircraft from maintenance (we later found out). Captain was late 5 mins before departure ground delays (construction) and boarding. Thunderstorms delayed departure. Cleared to 8000', then 13000', then 8000'. I advised captain (who was flying) at 8200' to level off. Altitude preselect said 8000', his altimeter 7500' and climbing. Mine (copilot) by now said 8700'. I pushed yoke over as center said 'maintain 8000'.' we discovered his altimeter was set 1' low. Also clock was 2 hours slow. Don't let delays hurry checklist. Check all 4 digits in altimeter. Don't trust mechanics.

Original NASA ASRS Text

Title: ALT DEVIATION BY FLT CREW OF MLG DEPARTING PHX.

Narrative: HAD JUST RECEIVED ACFT FROM MAINT (WE LATER FOUND OUT). CAPT WAS LATE 5 MINS BEFORE DEP GND DELAYS (CONSTRUCTION) AND BOARDING. TSTMS DELAYED DEP. CLRED TO 8000', THEN 13000', THEN 8000'. I ADVISED CAPT (WHO WAS FLYING) AT 8200' TO LEVEL OFF. ALT PRESELECT SAID 8000', HIS ALTIMETER 7500' AND CLBING. MINE (COPLT) BY NOW SAID 8700'. I PUSHED YOKE OVER AS CENTER SAID 'MAINTAIN 8000'.' WE DISCOVERED HIS ALTIMETER WAS SET 1' LOW. ALSO CLOCK WAS 2 HRS SLOW. DON'T LET DELAYS HURRY CHKLIST. CHK ALL 4 DIGITS IN ALTIMETER. DON'T TRUST MECHS.

Data retrieved from NASA's ASRS site as of August 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.