Small Aircraft; Low Wing; 1 Eng; Fixed Gear
Flight Crew Private; Flight Crew Instrument
Flight Crew Last 90 Days 30; Flight Crew Total 1340; Flight Crew Type 130
Situational Awareness; Distraction; Communication Breakdown
ATC Issue All Types; Deviation / Discrepancy - Procedural Published Material / Policy; Inflight Event / Encounter CFTT / CFIT
Air Traffic Control Issued New Clearance; Flight Crew Took Evasive Action; Flight Crew Became Reoriented
Procedure; Environment - Non Weather Related; Human Factors
I was as 6;000 MSL; flying heading 360; requested N27 RNAV (GPS) RWY 23 approach into airport N27; IAF DOMVY; under IFR.  VMC prevailed.  High terrain south of airport.  The published miss turns right; north; away from the high terrain.  Approach controller overrode the published miss.  Gave us this missed approach instruction instead:  'Upon entering controlled airspace; turn left heading 060.'  N27 is class G on the ground; has elevation 730 MSL; and has overlying class E starting 700 feet above the surface.  MSL elevation of the class E floor is therefore 700+730 = 1;430 MSL.  Terrain south of airport has a peak at 1;476 MSL; a peak at 1;327 MSL; a peak at 1;304 MSL; and a peak at 2;696 MSL.  We flew the published miss.  If it had been IMC and we had followed the controller's instruction; we could have been killed.
A pilot on the N27 RNAV GPS RWY 23 was issued custom missed approach instructions by BGM TRACON. If followed; the instructions would have led to a terrain impact versus the charted missed approach procedure which accounted for nearby high terrain.