C182 rg pilot experiences a thud at 3000 feet followed about two minutes later by loss of the vacuum...

Attributes
ACN	1274194
Time
Date	201506
Local Time Of Day	0601-1200
Place
Locale Reference	GLE.Airport
State Reference	TX
Environment
Flight Conditions	VMC
Light	Dawn
Aircraft 1
Make Model Name	Skylane 182/RG Turbo Skylane/RG
Operating Under FAR Part	Part 91
Flight Phase	Cruise
Route In Use	Direct
Flight Plan	None
Person 1
Function	Pilot Flying
Qualification	Flight Crew Multiengine Flight Crew Instrument Flight Crew Flight Instructor Flight Crew Commercial
Experience	Flight Crew Last 90 Days 15 Flight Crew Total 360 Flight Crew Type 20
Events
Anomaly	Aircraft Equipment Problem Critical Deviation - Procedural Published Material / Policy

Narrative:

During the cruise segment of the cross country flight we began diverting west due to weather along the route of flight. During the diversion we felt a thud against the airplane. Approximately two minutes later I noticed the vacuum system had gone completely offline. The oil pressure indicator in the engine began showing a decrease in oil pressure so my passenger and I began looking for lane field; identifier 58F. During this time another aircraft on the same CTAF relayed information to ft. Worth center on my behalf. We circled the area 2 times where charts and onboard VFR GPS showed the airport should be at but were unable to find the airport. We then diverted towards gainesville; gle; and found a better landing area closer to our present location. We were able to land on a grass strip; without incident but were broadcasting our intentions on the CTAF for gainesville instead of where we landed. Two aircraft in the area were able to give me information on the airport and then relayed to ft. Worth center when we safely landed at the field. I attempted to contact guard on 121.5 while on the ground but was not able to receive a response.

Original NASA ASRS Text

Title: C182 RG pilot experiences a thud at 3000 feet followed about two minutes later by loss of the vacuum system and falling engine oil pressure. Lane field is chosen as a divert field but cannot be located; even with GPS. GLE is then selected but a suitable grass field is found before GLE is reached.

Narrative: During the cruise segment of the cross country flight we began diverting west due to weather along the route of flight. During the diversion we felt a thud against the airplane. Approximately two minutes later I noticed the vacuum system had gone completely offline. The oil pressure indicator in the engine began showing a decrease in oil pressure so my passenger and I began looking for Lane field; identifier 58F. During this time another aircraft on the same CTAF relayed information to Ft. Worth Center on my behalf. We circled the area 2 times where charts and onboard VFR GPS showed the airport should be at but were unable to find the airport. We then diverted towards Gainesville; GLE; and found a better landing area closer to our present location. We were able to land on a grass strip; without incident but were broadcasting our intentions on the CTAF for Gainesville instead of where we landed. Two aircraft in the area were able to give me information on the airport and then relayed to Ft. Worth Center when we safely landed at the field. I attempted to contact Guard on 121.5 while on the ground but was not able to receive a response.

Data retrieved from NASA's ASRS site 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.

C182 rg pilot experiences a thud at 3000 feet followed about two minutes later by loss of the vacuum system and falling engine oil pressure. Lane field is chosen as a divert field but cannot be located; even with GPS. Gle is then selected but a suitable grass field is found before gle is reached.