Altitude deviation altitude excursion.

Attributes
ACN	157230
Time
Date	199009
Day	Fri
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : rzc
State Reference	AR
Altitude	msl bound lower : 7000 msl bound upper : 8000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : fyv
Operator	general aviation : instructional
Make Model Name	Small Transport, Low Wing, 2 Recip Eng
Flight Phase	cruise other descent other
Route In Use	enroute airway : zme
Flight Plan	IFR
Person 1
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : atp
Experience	flight time last 90 days : 220 flight time total : 3150 flight time type : 130
ASRS Report	157230
Person 2
Affiliation	government : faa
Function	controller : radar
Qualification	controller : radar
Events
Anomaly	altitude deviation : excursion from assigned altitude non adherence : clearance other anomaly other
Independent Detector	other controllera
Resolutory Action	none taken : detected after the fact
Consequence	faa : reviewed incident with flight crew
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

I was flying westbound on V140 between arg and hro VOR stations. In the area of flp another aircraft had a radio transmitter jam and blocked the channel. I called fyv approach giving my call sign only. I was intending to give my altitude, DME from rzc and inform them that I had not been handed of from ZME with my next call. However, approach said, 'roger, xyz at 7000.' so I understood that ZME had informed the approach controllers of the radio problem and I was cleared to leave 8000 for 7000'. I replied, 'xyz 37 DME east of rzc, leaving 8 for 7000.' after I landed the line boy told me I had to phone the tower. The supervisor at the tower/approach told me I had violated another aircraft's airspace whilst descending from 8000 to 7000' and fyv approach was not aware of any radio problems until ZME called them to ask why I was leaving 8000'. As they had another aircraft in the area at 7000'. Apparently I am at fault on this day for not telling fyv approach my altitude on my initial call. I do think ZME should have relayed the information to fyv approach about the radio problems, especially as fyv was handling IFR traffic. However, the main problem seems to be that fyv approach area can get quite busy, does not have radar and is providing sep on pilot position reports only.

Original NASA ASRS Text

Title: ALT DEVIATION ALT EXCURSION.

Narrative: I WAS FLYING WBND ON V140 BTWN ARG AND HRO VOR STATIONS. IN THE AREA OF FLP ANOTHER ACFT HAD A RADIO XMITTER JAM AND BLOCKED THE CHANNEL. I CALLED FYV APCH GIVING MY CALL SIGN ONLY. I WAS INTENDING TO GIVE MY ALT, DME FROM RZC AND INFORM THEM THAT I HAD NOT BEEN HANDED OF FROM ZME WITH MY NEXT CALL. HOWEVER, APCH SAID, 'ROGER, XYZ AT 7000.' SO I UNDERSTOOD THAT ZME HAD INFORMED THE APCH CTLRS OF THE RADIO PROB AND I WAS CLRED TO LEAVE 8000 FOR 7000'. I REPLIED, 'XYZ 37 DME E OF RZC, LEAVING 8 FOR 7000.' AFTER I LANDED THE LINE BOY TOLD ME I HAD TO PHONE THE TWR. THE SUPVR AT THE TWR/APCH TOLD ME I HAD VIOLATED ANOTHER ACFT'S AIRSPACE WHILST DSNDING FROM 8000 TO 7000' AND FYV APCH WAS NOT AWARE OF ANY RADIO PROBS UNTIL ZME CALLED THEM TO ASK WHY I WAS LEAVING 8000'. AS THEY HAD ANOTHER ACFT IN THE AREA AT 7000'. APPARENTLY I AM AT FAULT ON THIS DAY FOR NOT TELLING FYV APCH MY ALT ON MY INITIAL CALL. I DO THINK ZME SHOULD HAVE RELAYED THE INFO TO FYV APCH ABOUT THE RADIO PROBS, ESPECIALLY AS FYV WAS HANDLING IFR TFC. HOWEVER, THE MAIN PROB SEEMS TO BE THAT FYV APCH AREA CAN GET QUITE BUSY, DOES NOT HAVE RADAR AND IS PROVIDING SEP ON PLT POS RPTS ONLY.

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.