Pilot of a small aircraft on VFR descent to lhm reported a near mid-air collision (near midair colli...

Attributes
ACN	1477801
Time
Date	201708
Local Time Of Day	0001-0600
Place
Locale Reference	LHM.Airport
State Reference	CA
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	Small Aircraft Low Wing 1 Eng Retractable Gear
Operating Under FAR Part	Part 91
Flight Phase	Descent
Route In Use	Direct
Flight Plan	VFR
Aircraft 2
Make Model Name	Small Aircraft Low Wing 2 Eng Retractable Gear
Flight Phase	Initial Climb
Person 1
Function	Single Pilot Pilot Flying
Qualification	Flight Crew Multiengine Flight Crew Instrument Flight Crew Flight Instructor Flight Crew Commercial
Experience	Flight Crew Last 90 Days 19 Flight Crew Total 4520 Flight Crew Type 230
Events
Anomaly	Conflict NMAC
Miss Distance	Horizontal 50 Vertical 300

Narrative:

[I] was VFR and just released from norcal flight following to squawk VFR and cleared to lincoln unicom frequency. 'Caution two aircraft in traffic pattern at lincoln.' acknowledged and squawked VFR and switched to lincoln regional unicom. Transmitted on unicom that [I] was 10 miles south of lincoln passing 4;000 feet and planned on a 45 to left downwind entry at the 'log pile' for runway 15. I was still on auto pilot. One aircraft transmitted on unicom that it was just pulling off the runway 15. Did not hear the other aircraft. Moments later; while passing about 3;000 MSL; a twin engine aircraft appeared in the windscreen a little above and to the east. The aircraft appeared to be climbing. I was descending. I pushed on the yoke a bit; but was still on autopilot and by that time was well clear; so no real evasive action was taken. Could not identify the tail number or type aircraft other than a twin engine.

Original NASA ASRS Text

Title: Pilot of a small aircraft on VFR descent to LHM reported a Near Mid-Air Collision (NMAC) with an unidentified twin-engine aircraft departing LHM.

Narrative: [I] was VFR and just released from NorCal flight following to squawk VFR and cleared to Lincoln UNICOM frequency. 'Caution two aircraft in traffic pattern at Lincoln.' Acknowledged and squawked VFR and switched to Lincoln Regional UNICOM. Transmitted on UNICOM that [I] was 10 miles south of Lincoln passing 4;000 feet and planned on a 45 to left downwind entry at the 'Log Pile' for Runway 15. I was still on auto pilot. One aircraft transmitted on UNICOM that it was just pulling off the Runway 15. Did not hear the other aircraft. Moments later; while passing about 3;000 MSL; a twin engine aircraft appeared in the windscreen a little above and to the east. The aircraft appeared to be climbing. I was descending. I pushed on the yoke a bit; but was still on autopilot and by that time was well clear; so no real evasive action was taken. Could not identify the tail number or type aircraft other than a twin engine.

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.

Pilot of a small aircraft on VFR descent to lhm reported a near mid-air collision (near midair collision) with an unidentified twin-engine aircraft departing lhm.