NTSB Identification: LAX91FA111.
The docket is stored on NTSB microfiche number 44817.
Accident occurred Friday, February 22, 1991 in CARLSBAD, CA
Probable Cause Approval Date: 07/23/1993
Aircraft: CESSNA 150L, registration: N18526
Injuries: 2 Fatal.

NTSB investigators either traveled in support of this investigation or conducted a significant amount of investigative work without any travel, and used data obtained from various sources to prepare this aircraft accident report.

THE FLIGHT INSTRUCTOR AND STUDENT PILOT WERE PLANNING TO CONDUCT TOUCH AND GO LANDINGS AT A NEARBY AIRPORT, ABOUT 15 MILES EAST OF THE DEPARTURE AIRPORT. THEY DID ONE TAKEOFF AND LANDING AT THE DEPARTURE AIRPORT, BUT WERE DENIED ANY FURTHER OPERATIONS BECAUSE THE WEATHER CONDITIONS WERE BELOW VFR MINIMUMS. THE CFI REQUESTED AND RECEIVED A SPECIAL VFR CLEARANCE AND DEPARTED THE CONTROL ZONE TO THE EAST. ABOUT 2 MINUTES AFTER REPORTING CLEAR OF THE CONTROL ZONE, THE AIRPLANE COLLIDED WITH A HILL 8 MILES SOUTHEAST OF THE DEPARTURE AIRPORT ABOUT 925 FEET MSL IN A WINGS AND NOSE LEVEL ATTITUDE. A HELICOPTER PILOT OPERATING IN THE AREA REPORTED CEILINGS OF ABOUT 800 TO 850 FEET MSL. TOXICOLOGICAL ANALYSIS OF THE URINE OF THE CFI REVEALED A HIGH LEVEL OF ANTIHISTAMINE.

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

THE CFI/PIC'S INADEQUATE IN-FLIGHT PLANNING/DECISION AND THE CONTINUED VFR FLIGHT INTO AN AREA OF IMC CONDITIONS. THE PILOT'S IMPAIRMENT DUE TO HIGH LEVELS OF ANTIHISTAMINE AND THE LOW CEILING WERE FACTORS IN THE ACCIDENT.

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