Air carrier medium large transport altitude deviation overshot.

Attributes
ACN	147679
Time
Date	199006
Day	Wed
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : igb
State Reference	MS
Altitude	msl bound lower : 31000 msl bound upper : 35000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zme
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Navigation In Use	Other
Flight Phase	climbout : intermediate altitude
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 200 flight time total : 12000 flight time type : 3000
ASRS Report	147679
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : flight engineer pilot : atp
Experience	flight time last 90 days : 225 flight time total : 3500 flight time type : 2500
ASRS Report	147605
Events
Anomaly	altitude deviation : overshoot non adherence : clearance
Independent Detector	other controllera
Resolutory Action	controller : issued new clearance
Consequence	Other
Supplementary
Primary Problem	Ambiguous
Air Traffic Incident	Operational Deviation Pilot Deviation other

Narrative:

Flight cleared from FL290 to FL350 by center. Passing through 31000' center called and stipulated, cleared to FL310 not FL350. Leveled aircraft and descend to FL310. Suspect mix-up in center. Controller that cleared us to FL350 not the controller that stopped our climb. Controllers switched (break?) during climb. Copilot had acknowledged and read back FL350 on clearance. No proximity to other aircraft announced by ATC or seen.

Original NASA ASRS Text

Title: ACR MLG ALT DEVIATION OVERSHOT.

Narrative: FLT CLRED FROM FL290 TO FL350 BY CTR. PASSING THROUGH 31000' CTR CALLED AND STIPULATED, CLRED TO FL310 NOT FL350. LEVELED ACFT AND DSND TO FL310. SUSPECT MIX-UP IN CTR. CTLR THAT CLRED US TO FL350 NOT THE CTLR THAT STOPPED OUR CLB. CTLRS SWITCHED (BREAK?) DURING CLB. COPLT HAD ACKNOWLEDGED AND READ BACK FL350 ON CLRNC. NO PROX TO OTHER ACFT ANNOUNCED BY ATC OR SEEN.

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.