<< >> NASA ASRS Report 368750, May 1997

B737-300 level 12000 ft cleared climb 13000 ft traffic at 14000 ft. First officer noted high rate climb at 12500 ft and called to captain's attention who was hand-flying. Overshot altitude 300 ft. Traffic on TCASII but no TA or RA.

Attributes
ACN	368750
Time
Date	199705
Day	Thu
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : ord
State Reference	IL
Altitude	msl bound lower : 12000 msl bound upper : 13300
Environment
Flight Conditions	VMC
Light	Dawn
Aircraft 1
Controlling Facilities	artcc : zau
Operator	common carrier : air carrier
Make Model Name	B737-300
Operating Under FAR Part	Part 121
Navigation In Use	Other
Flight Phase	climbout : intermediate altitude
Route In Use	enroute : on vectors
Flight Plan	IFR
Aircraft 2
Make Model Name	King Air C90 E90
Operating Under FAR Part	Part 91
Flight Phase	cruise other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : instrument pilot : commercial pilot : cfi pilot : atp pilot : flight engineer
Experience	flight time last 90 days : 270 flight time total : 5500 flight time type : 1500
ASRS Report	368750
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 198 flight time total : 8900 flight time type : 5160
ASRS Report	368805
Events
Anomaly	altitude deviation : overshoot non adherence : clearance non adherence : far
Independent Detector	other flight crewa
Resolutory Action	flight crew : returned to intended course or assigned course
Consequence	Other
Miss Distance	vertical : 600
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation other

Narrative:

Level at 12000 ft, en route from mdw to mci. Captain was flying, he had the autoplt off while attempting to trim the aircraft. Center cleared us to 13000 ft and advised traffic at 14000 ft. I acknowledged, set 13000 ft in altitude alerter, and was looking outside for the traffic. When I looked back inside, we were climbing through 12500 ft at approximately 4000 FPM. I yelled 'altitude!' and began pushing forward on the yoke. Captain then realized his error, and immediately continued my corrective action. We went up to approximately 13300 ft before the captain got us back down to 13000 ft. TCASII did depict the traffic, but we did not get close enough for a TA or RA. Captain later stated he thought we were cleared to FL230, rather than 13000 ft. If the autoplt had been engaged, it would have leveled us automatically. Supplemental information from acn 368805: I started the climb, then started looking at the FMC for data and inadvertently overshot my altitude.

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Original NASA ASRS Text

Title: B737-300 LEVEL 12000 FT CLRED CLB 13000 FT TFC AT 14000 FT. FO NOTED HIGH RATE CLB AT 12500 FT AND CALLED TO CAPT'S ATTN WHO WAS HAND-FLYING. OVERSHOT ALT 300 FT. TFC ON TCASII BUT NO TA OR RA.

Narrative: LEVEL AT 12000 FT, ENRTE FROM MDW TO MCI. CAPT WAS FLYING, HE HAD THE AUTOPLT OFF WHILE ATTEMPTING TO TRIM THE ACFT. CTR CLRED US TO 13000 FT AND ADVISED TFC AT 14000 FT. I ACKNOWLEDGED, SET 13000 FT IN ALT ALERTER, AND WAS LOOKING OUTSIDE FOR THE TFC. WHEN I LOOKED BACK INSIDE, WE WERE CLBING THROUGH 12500 FT AT APPROX 4000 FPM. I YELLED 'ALT!' AND BEGAN PUSHING FORWARD ON THE YOKE. CAPT THEN REALIZED HIS ERROR, AND IMMEDIATELY CONTINUED MY CORRECTIVE ACTION. WE WENT UP TO APPROX 13300 FT BEFORE THE CAPT GOT US BACK DOWN TO 13000 FT. TCASII DID DEPICT THE TFC, BUT WE DID NOT GET CLOSE ENOUGH FOR A TA OR RA. CAPT LATER STATED HE THOUGHT WE WERE CLRED TO FL230, RATHER THAN 13000 FT. IF THE AUTOPLT HAD BEEN ENGAGED, IT WOULD HAVE LEVELED US AUTOMATICALLY. SUPPLEMENTAL INFO FROM ACN 368805: I STARTED THE CLB, THEN STARTED LOOKING AT THE FMC FOR DATA AND INADVERTENTLY OVERSHOT MY ALT.

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.