Here are a few suggestions:
The most likely source for a report would be the Tyrone Herald newspaper. You could email the editor at -
dherald@verizon.net
That area is far enough from Tyrone Borough that it is likely that the Tyrone Borough POLICE were NOT involved, but the Tyrone FIRE Department probably WAS. NOTE: Police response was most likely by the Pennsylvania State Police, Troop "G" Headquarters in Hollidaysburg. Even if it was in Centre County and responded to by the State Police for that area, the Hollidaysburg station was and is still the headquarters that may have information.
It is possible that a fire department (and maybe police) response report may be in an archived file with the borough records. You could try emailing the borough's business offices at -
info@tyroneboropa.com
An EXCELLENT source for most aircraft accidents in the US is the Federal Aviation Administration.
They maintain records on all reportable aircraft accidents, and they are usually researchable on their website -
http://www.faa.gov
Clicking on the link on the right side of the page that reads "Accident and Incident Data" will access a page that includes a link to "Accidents: More than 10-Years Ago". If you click on it, it will forward you to a page that displays only the major accidents in the period. Click on the highlighted "Accident Synopses" part at the top of the page, this will display the National Transportation Safety Board report query page. Here is the direct link -
http://www.ntsb.gov/ntsb/query.asp
The only problem is that this database only goes back to 1962. You could try putting in the information that you already have, but it probably won't show any results.
If that is the case, I'd recommend going back to the main FAA home page -
http://www.faa.gov
and reviewing the site for any way to contact someone to find out if the information you are seeking is retrievable.
Good luck, as it is not often that older information of just about anything is in a retrievable computerized database. Something that old is usually much rarer to locate.