What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
(-23) A/c departed lone pine, CA (O26) and climbed to 10K and after retarding power to cruise, experienced low oil pressure and engine vibrations. Made precautionary landing on hwy 395 approx 6 miles south of Bishop, CA (bih). No damage to aircraft or personnel. Initial indications that the #3 exhaust valve cover had come off, oil on lwr fuselage with no oil showing on dipstick, bulges on upper engine case and indications of #3 cylinder piston not connected to crank. Engine was torn down to determine what failed. Tear down report indicates that the prop governor installation was missing metal spacer p/n LW-12347 resulting in significant oil loss and ultimate engine failure.
As the FAA filed it
(-23) A/C DEPARTED LONE PINE, CA (O26) AND CLIMBED TO 10K AND AFTER RETARDING POWER TO CRUISE, EXPERIENCED LOW OIL PRESSURE AND ENGINE VIBRATIONS. MADE PRECAUTIONARY LANDING ON HWY 395 APPROX 6 MILES SOUTH OF BISHOP, CA (BIH). NO DAMAGE TO AIRCRAFT OR PERSONNEL. INITIAL INDICATIONS THAT THE #3 EXHAUST VALVE COVER HAD COME OFF, OIL ON LWR FUSELAGE WITH NO OIL SHOWING ON DIPSTICK, BULGES ON UPPER ENGINE CASE AND INDICATIONS OF #3 CYLINDER PISTON NOT CONNECTED TO CRANK. ENGINE WAS TORN DOWN TO DETERMINE WHAT FAILED. TEAR DOWN REPORT INDICATES THAT THE PROP GOVERNOR INSTALLATION WAS MISSING METAL SPACER P/N LW-12347 RESULTING IN SIGNIFICANT OIL LOSS AND ULTIMATE ENGINE FAILURE.
Other reports on N201LR · 1
Matched to the same aircraft by N-number and date.