Small aircraft aircraft en route cruise encountered turbulence, pilot lost 400 ft and approach controller intervened, vectored reporter aircraft due to conflict with air carrier jet on approach.

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Attributes
ACN	357320
Time
Date	199701
Day	Sat
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : btr
State Reference	LA
Altitude	msl bound lower : 2100 msl bound upper : 2500
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : btr
Operator	general aviation : corporate
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Operating Under FAR Part	Part 91
Flight Phase	cruise other
Flight Plan	VFR
Aircraft 2
Operator	common carrier : air carrier
Make Model Name	Commercial Fixed Wing
Operating Under FAR Part	Part 121
Flight Phase	descent : approach
Flight Plan	IFR
Person 1
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : atp
Experience	flight time last 90 days : 100 flight time total : 13000 flight time type : 200
ASRS Report	357320
Person 2
Affiliation	government : faa
Function	controller : approach
Qualification	controller : radar
Events
Anomaly	altitude deviation : excursion from assigned altitude conflict : airborne less severe inflight encounter : weather non adherence : required legal separation
Independent Detector	other controllera
Resolutory Action	controller : issued new clearance other
Consequence	Other
Miss Distance	horizontal : 15000 vertical : 400
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

En route to lft at 2500 ft, moderate to occasionally severe turbulence caused me to ignore my altitude in favor of maintaining 'attitude' and caused approach control to get excited about a air carrier jet at 1700 ft on the approach to btr, about 2.5 mi away. I bottomed out at 2100 ft and approach became alarmed and gave me a 90 degree turn to the left. I told him of the turbulence and he claimed I endangered the air carrier jet. I had the air carrier jet in sight and didn't think I endangered them at all, so I'm reporting it to you to cover my '6 O'clock.'

Original NASA ASRS Text

Title: SMA ACFT ENRTE CRUISE ENCOUNTERED TURB, PLT LOST 400 FT AND APCH CTLR INTERVENED, VECTORED RPTR ACFT DUE TO CONFLICT WITH ACR JET ON APCH.

Narrative: ENRTE TO LFT AT 2500 FT, MODERATE TO OCCASIONALLY SEVERE TURB CAUSED ME TO IGNORE MY ALT IN FAVOR OF MAINTAINING 'ATTITUDE' AND CAUSED APCH CTL TO GET EXCITED ABOUT A ACR JET AT 1700 FT ON THE APCH TO BTR, ABOUT 2.5 MI AWAY. I BOTTOMED OUT AT 2100 FT AND APCH BECAME ALARMED AND GAVE ME A 90 DEG TURN TO THE L. I TOLD HIM OF THE TURB AND HE CLAIMED I ENDANGERED THE ACR JET. I HAD THE ACR JET IN SIGHT AND DIDN'T THINK I ENDANGERED THEM AT ALL, SO I'M RPTING IT TO YOU TO COVER MY '6 O'CLOCK.'

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.