A B737-700 flight crew was climbing through FL357 to FL400 when ATC asked for leveloff at FL360. The crew overshot the altitude by 200 ft and got a TCAS TA and RA.

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Attributes
ACN	715751
Time
Date	200611
Local Time Of Day	1201 To 1800
Place
Locale Reference	intersection : makrs
State Reference	CA
Altitude	msl single value : 36000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zla.artcc
Operator	common carrier : air carrier
Make Model Name	B737-700
Operating Under FAR Part	Part 121
Flight Phase	climbout : intermediate altitude
Flight Plan	IFR
Aircraft 2
Controlling Facilities	artcc : zla.artcc
Operator	Other
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Experience	flight time last 90 days : 222
ASRS Report	715751
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Events
Anomaly	altitude deviation : overshoot conflict : airborne critical non adherence : clearance
Independent Detector	other flight crewa
Resolutory Action	flight crew : returned to assigned altitude
Supplementary
Problem Areas	ATC Human Performance
Primary Problem	ATC Human Performance

Narrative:

While at our intermediate cruise altitude FL340 we were given a clearance to FL400; our final. We were a light B737-700 and were climbing about 2000 FPM. At FL357; ZLA called and said company X level at FL360 for traffic. I immediately started lowering the nose and pulled power off the aircraft; trying not to bounce our passenger or flight attendants off the ceiling. We overshoot FL360 by 200 ft. As I was correcting back to FL360 we got a TA followed by RA; which lasted less than 5 seconds. After we leveled at FL360 ZLA expressed gratitude for the expeditious leveloff. The first officer had the traffic in sight while the leveloff was happening. We asked the flight attendants after the fact and they stated they didn't realize anything abnormal had happened.

Original NASA ASRS Text

Title: A B737-700 FLT CREW WAS CLBING THROUGH FL357 TO FL400 WHEN ATC ASKED FOR LEVELOFF AT FL360. THE CREW OVERSHOT THE ALT BY 200 FT AND GOT A TCAS TA AND RA.

Narrative: WHILE AT OUR INTERMEDIATE CRUISE ALT FL340 WE WERE GIVEN A CLRNC TO FL400; OUR FINAL. WE WERE A LIGHT B737-700 AND WERE CLBING ABOUT 2000 FPM. AT FL357; ZLA CALLED AND SAID COMPANY X LEVEL AT FL360 FOR TFC. I IMMEDIATELY STARTED LOWERING THE NOSE AND PULLED PWR OFF THE ACFT; TRYING NOT TO BOUNCE OUR PAX OR FLT ATTENDANTS OFF THE CEILING. WE OVERSHOOT FL360 BY 200 FT. AS I WAS CORRECTING BACK TO FL360 WE GOT A TA FOLLOWED BY RA; WHICH LASTED LESS THAN 5 SECONDS. AFTER WE LEVELED AT FL360 ZLA EXPRESSED GRATITUDE FOR THE EXPEDITIOUS LEVELOFF. THE FO HAD THE TFC IN SIGHT WHILE THE LEVELOFF WAS HAPPENING. WE ASKED THE FLT ATTENDANTS AFTER THE FACT AND THEY STATED THEY DIDN'T REALIZE ANYTHING ABNORMAL HAD HAPPENED.

Data retrieved from NASA's ASRS site as of January 2009 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.