Air carrier medium large transport altitude deviation excursion from clearance altitude in response ...

Attributes
ACN	87370
Time
Date	198805
Day	Sat
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : ape
State Reference	OH
Altitude	msl bound lower : 34300 msl bound upper : 35000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zid
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Navigation In Use	Other
Flight Phase	cruise other descent other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : commercial pilot : cfi pilot : atp pilot : flight engineer
Experience	flight time last 90 days : 200 flight time total : 11000 flight time type : 1500
ASRS Report	87370
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : cfi pilot : atp pilot : flight engineer
Experience	flight time last 90 days : 100 flight time total : 6600 flight time type : 20
ASRS Report	89090
Events
Anomaly	altitude deviation : excursion from assigned altitude non adherence : clearance
Independent Detector	other controllera
Resolutory Action	flight crew : returned to intended course or assigned course other
Consequence	Other
Supplementary
Primary Problem	Ambiguous
Air Traffic Incident	Operational Deviation other
Situations
ATC Facility	procedure or policy : unspecified

Narrative:

Flight with same call but different company was on our frequency with ind center. Controller gave the flight number without a company name a descent to FL280 which we read back with our call sign and company with no response from center. Passing FL343 center asked us to verify our altitude of FL350. We told him we had been given FL280 and he then told us there was another company with the same call sign. The controller did not learn from the mistake, however, because he clipped the company name on the next transmission.

Original NASA ASRS Text

Title: ACR MLG ALT DEVIATION EXCURSION FROM CLRNC ALT IN RESPONSE TO WRONG CALL SIGN.

Narrative: FLT WITH SAME CALL BUT DIFFERENT COMPANY WAS ON OUR FREQ WITH IND CENTER. CTLR GAVE THE FLT NUMBER WITHOUT A COMPANY NAME A DSCNT TO FL280 WHICH WE READ BACK WITH OUR CALL SIGN AND COMPANY WITH NO RESPONSE FROM CENTER. PASSING FL343 CENTER ASKED US TO VERIFY OUR ALT OF FL350. WE TOLD HIM WE HAD BEEN GIVEN FL280 AND HE THEN TOLD US THERE WAS ANOTHER COMPANY WITH THE SAME CALL SIGN. THE CTLR DID NOT LEARN FROM THE MISTAKE, HOWEVER, BECAUSE HE CLIPPED THE COMPANY NAME ON THE NEXT XMISSION.

Data retrieved from NASA's ASRS site as of August 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.

Air carrier medium large transport altitude deviation excursion from clearance altitude in response to wrong call sign.