A C210 pilot, in descent to dto, experiencing engine problems, landed short of destination.

Attributes
ACN	557972
Time
Date	200208
Day	Sun
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : dto.airport
State Reference	TX
Altitude	msl single value : 10000
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Controlling Facilities	artcc : zfw.artcc
Operator	general aviation : personal
Make Model Name	Cessna 210 Centurion / Turbo Centurion 210C, 210D
Operating Under FAR Part	Part 91
Flight Phase	descent : intermediate altitude
Flight Plan	None
Aircraft 2
Controlling Facilities	artcc : zfw.artcc
Operator	common carrier : air carrier
Make Model Name	Regional Jet CL65, Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Person 1
Affiliation	other
Function	flight crew : single pilot
Qualification	pilot : private pilot : instrument
Experience	flight time last 90 days : 60 flight time total : 1425 flight time type : 1200
ASRS Report	557972
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Events
Anomaly	aircraft equipment problem : critical other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : oil press/manifeld press other flight crewa
Resolutory Action	controller : provided flight assist controller : issued new clearance flight crew : landed in emergency condition flight crew : declared emergency
Consequence	faa : investigated faa : reviewed incident with flight crew other
Supplementary
Problem Areas	Aircraft
Primary Problem	Aircraft

Narrative:

I started a descent from 11500 ft into dto. I noticed a drop in manifold pressure, then a slight hint of burnt oil smell. I checked my C2O sensor but detected none. I decided I was losing oil through the turbo and determined if the pressure dropped out of the green I would land. The oil pressure wavered for 2-3 mins and then slowly out of the green. I informed ATC as I was on flight following, and they advised me jacksboro was the closest airport (5 mi). I announced I was going into there and might have to shut down the engine. ATC declared an emergency and asked a regional jet in the area to check the lights on. I circled over the jacksboro airport with the engine idling and made a safe landing. The regional jet relayed my safe arrival without any problem to ATC. FAA followed up with a phone call 2 days later and sent a malfunction and defect form to be completed when the engine/turbo is checked.

Original NASA ASRS Text

Title: A C210 PLT, IN DSCNT TO DTO, EXPERIENCING ENG PROBS, LANDED SHORT OF DEST.

Narrative: I STARTED A DSCNT FROM 11500 FT INTO DTO. I NOTICED A DROP IN MANIFOLD PRESSURE, THEN A SLIGHT HINT OF BURNT OIL SMELL. I CHKED MY C2O SENSOR BUT DETECTED NONE. I DECIDED I WAS LOSING OIL THROUGH THE TURBO AND DETERMINED IF THE PRESSURE DROPPED OUT OF THE GREEN I WOULD LAND. THE OIL PRESSURE WAVERED FOR 2-3 MINS AND THEN SLOWLY OUT OF THE GREEN. I INFORMED ATC AS I WAS ON FLT FOLLOWING, AND THEY ADVISED ME JACKSBORO WAS THE CLOSEST ARPT (5 MI). I ANNOUNCED I WAS GOING INTO THERE AND MIGHT HAVE TO SHUT DOWN THE ENG. ATC DECLARED AN EMER AND ASKED A REGIONAL JET IN THE AREA TO CHK THE LIGHTS ON. I CIRCLED OVER THE JACKSBORO ARPT WITH THE ENG IDLING AND MADE A SAFE LNDG. THE REGIONAL JET RELAYED MY SAFE ARR WITHOUT ANY PROB TO ATC. FAA FOLLOWED UP WITH A PHONE CALL 2 DAYS LATER AND SENT A MALFUNCTION AND DEFECT FORM TO BE COMPLETED WHEN THE ENG/TURBO IS CHKED.

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.