What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
On October 25, 2010, privacy data omitted (ASI) and I were instructed to meet with privacy data omitted of the cap to inspect one of their aircraft. This aircraft declared an emergency and landed at the Boise airport (boi) when the engine throttle response became inoperative. We met privacy data omitted at or around 1:00PM at the western aircraft terminal and were told that the aircraft was tied down on the ramp. I asked privacy data omitted the name of the pilot and if any passengers were aboard the aircraft. He stated that the pilot was Mr. Bill zerfas and the passenger was privacy data omitted and that they were practicing maneuvers south of the airport when this happened. privacy data omitted Also stated that the aircraft just came out of an annual inspection about 5 hours earlier. I told privacy data omitted that I would need to see the carburetor and its controls as part of my investigation. He proceeded to remove the engine cowling.privacy data omitted Removed the top cowling and opened up the left side of the lower engine cowling for my inspection. I noticed that the throttle control was disconnected from the carburetor throttle arm. The retaining bolt was still through the throttle arm but the large area washer, castle nut and cotter pin were missing. I photographed the area in question. I verified that the throttle arm was contacting both stops on the carburetor with no binding. As I observed the control cable, privacy data omitted operated the cable. No binding was seen or felt. There was no evidence of any loose hardware found inside the engine cowling. The annual inspection was completed on 10-08-2010, and the tach time was 4728.9. This information was obtained from the flight log book. The current tach time at this inspection is 4733.8IT is apparent that the PIC exercised good judgment and piloting skills in performing a successful emergency landing. Slc FSDO will follow up with mx provider regarding last annual inspection.
As the FAA filed it
ON OCTOBER 25, 2010, ^PRIVACY DATA OMITTED^ (ASI) AND I WERE INSTRUCTED TO MEET WITH ^PRIVACY DATA OMITTED^ OF THE CAP TO INSPECT ONE OF THEIR AIRCRAFT. THIS AIRCRAFT DECLARED AN EMERGENCY AND LANDED AT THE BOISE AIRPORT (BOI) WHEN THE ENGINE THROTTLE RESPONSE BECAME INOPERATIVE. WE MET ^PRIVACY DATA OMITTED^ AT OR AROUND 1:00PM AT THE WESTERN AIRCRAFT TERMINAL AND WERE TOLD THAT THE AIRCRAFT WAS TIED DOWN ON THE RAMP. I ASKED ^PRIVACY DATA OMITTED^ THE NAME OF THE PILOT AND IF ANY PASSENGERS WERE ABOARD THE AIRCRAFT. HE STATED THAT THE PILOT WAS MR. BILL ZERFAS AND THE PASSENGER WAS ^PRIVACY DATA OMITTED^ AND THAT THEY WERE PRACTICING MANEUVERS SOUTH OF THE AIRPORT WHEN THIS HAPPENED. ^PRIVACY DATA OMITTED^ ALSO STATED THAT THE AIRCRAFT JUST CAME OUT OF AN ANNUAL INSPECTION ABOUT 5 HOURS EARLIER. I TOLD ^PRIVACY DATA OMITTED^ THAT I WOULD NEED TO SEE THE CARBURETOR AND ITS CONTROLS AS PART OF MY INVESTIGATION. HE PROCEEDED TO REMOVE THE ENGINE COWLING.^PRIVACY DATA OMITTED^ REMOVED THE TOP COWLING AND OPENED UP THE LEFT SIDE OF THE LOWER ENGINE COWLING FOR MY INSPECTION. I NOTICED THAT THE THROTTLE CONTROL WAS DISCONNECTED FROM THE CARBURETOR THROTTLE ARM. THE RETAINING BOLT WAS STILL THROUGH THE THROTTLE ARM BUT THE LARGE AREA WASHER, CASTLE NUT AND COTTER PIN WERE MISSING. I PHOTOGRAPHED THE AREA IN QUESTION. I VERIFIED THAT THE THROTTLE ARM WAS CONTACTING BOTH STOPS ON THE CARBURETOR WITH NO BINDING. AS I OBSERVED THE CONTROL CABLE, ^PRIVACY DATA OMITTED^ OPERATED THE CABLE. NO BINDING WAS SEEN OR FELT. THERE WAS NO EVIDENCE OF ANY LOOSE HARDWARE FOUND INSIDE THE ENGINE COWLING. THE ANNUAL INSPECTION WAS COMPLETED ON 10-08-2010, AND THE TACH TIME WAS 4728.9. THIS INFORMATION WAS OBTAINED FROM THE FLIGHT LOG BOOK. THE CURRENT TACH TIME AT THIS INSPECTION IS 4733.8IT IS APPARENT THAT THE PIC EXERCISED GOOD JUDGMENT AND PILOTING SKILLS IN PERFORMING A SUCCESSFUL EMERGENCY LANDING.SLC FSDO WILL FOLLOW UP WITH MX PROVIDER REGARDING LAST ANNUAL INSPECTION.