A slow climbing cpr business jet was assigned FL370 then changed to FL310 in ZKC airspace.

Attributes
ACN	586369
Time
Date	200306
Day	Wed
Local Time Of Day	1801 To 2400
Place
Locale Reference	atc facility : zkc.artcc
State Reference	KS
Altitude	msl bound lower : 31000 msl bound upper : 37000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zkc.artcc
Operator	general aviation : corporate
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Operating Under FAR Part	Part 91
Flight Phase	climbout : intermediate altitude
Flight Plan	IFR
Person 1
Affiliation	government : faa
Function	controller : radar
Qualification	controller : radar
Experience	controller limited radar : 5 controller military : 4 controller non radar : 10 controller radar : 20 controller supervisory : 1
ASRS Report	586369
Person 2
Affiliation	government : faa
Function	controller : radar
Events
Anomaly	altitude deviation : overshoot non adherence : published procedure
Independent Detector	atc equipment other atc equipment : radar/ mode c other controllera other controllerb
Resolutory Action	controller : separated traffic controller : issued new clearance flight crew : returned to assigned altitude
Consequence	faa : investigated
Supplementary
Problem Areas	ATC Human Performance Flight Crew Human Performance
Primary Problem	ATC Human Performance
Air Traffic Incident	Intra Facility Coordination Failure

Narrative:

Aircraft was initially told to climb to FL370. Due to slow climb rate, FL310 was coordinated with ZDV. Both radar controller and radar associate believed that FL310 was issued to the aircraft. Aircraft checked on ZDV sector 28 climbing to FL370, but it was not detected. ZDV questioned aircraft when he went above FL310 and was told FL370 was lost issued altitude. ZDV controller advised ZKC sector 22 that 'you might get a call.' not realizing that FL310 had apparently not been issued, we considered it a pilot deviation in ZDV airspace. I was given a qar worksheet later that stated the tape had been reviewed and no errors by pilot or controller had been found.

Original NASA ASRS Text

Title: A SLOW CLBING CPR BUSINESS JET WAS ASSIGNED FL370 THEN CHANGED TO FL310 IN ZKC AIRSPACE.

Narrative: ACFT WAS INITIALLY TOLD TO CLB TO FL370. DUE TO SLOW CLB RATE, FL310 WAS COORDINATED WITH ZDV. BOTH RADAR CTLR AND RADAR ASSOCIATE BELIEVED THAT FL310 WAS ISSUED TO THE ACFT. ACFT CHKED ON ZDV SECTOR 28 CLBING TO FL370, BUT IT WAS NOT DETECTED. ZDV QUESTIONED ACFT WHEN HE WENT ABOVE FL310 AND WAS TOLD FL370 WAS LOST ISSUED ALT. ZDV CTLR ADVISED ZKC SECTOR 22 THAT 'YOU MIGHT GET A CALL.' NOT REALIZING THAT FL310 HAD APPARENTLY NOT BEEN ISSUED, WE CONSIDERED IT A PLTDEV IN ZDV AIRSPACE. I WAS GIVEN A QAR WORKSHEET LATER THAT STATED THE TAPE HAD BEEN REVIEWED AND NO ERRORS BY PLT OR CTLR HAD BEEN FOUND.

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.