<< >> NASA ASRS Report 295260, January 1995

Altitude deviation or controller error?

Attributes
ACN	295260
Time
Date	199501
Day	Mon
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : ind
State Reference	IN
Altitude	msl bound lower : 32500 msl bound upper : 33000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zid
Operator	common carrier : air carrier
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Operating Under FAR Part	Part 121
Flight Phase	cruise other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : flight engineer pilot : atp
Experience	flight time last 90 days : 260 flight time total : 14000 flight time type : 260
ASRS Report	295260
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 300 flight time total : 13500 flight time type : 3300
ASRS Report	295098
Events
Anomaly	altitude deviation : excursion from assigned altitude non adherence : clearance other anomaly other
Independent Detector	other controllera
Resolutory Action	controller : issued new clearance flight crew : returned to intended course or assigned course other
Consequence	Other
Supplementary
Primary Problem	Ambiguous
Air Traffic Incident	Pilot Deviation other

Narrative:

Cruising at FL330, cleared to FL240 by ind center. Read back clearance. Started descent. At FL325, controller came back and directed us to climb to FL330 which we immediately complied with. Nothing else was said.

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Original NASA ASRS Text

Title: ALTDEV OR CTLR ERROR?

Narrative: CRUISING AT FL330, CLRED TO FL240 BY IND CTR. READ BACK CLRNC. STARTED DSCNT. AT FL325, CTLR CAME BACK AND DIRECTED US TO CLB TO FL330 WHICH WE IMMEDIATELY COMPLIED WITH. NOTHING ELSE WAS SAID.

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.