Casualties unknown

1991-02-23: Cessna 150L (N18526) — Aviation Services Inc. — Carlsbad, CA

Carlsbad, CA, US

On February 23, 1991, a Cessna 150L (registration N18526) operated by Aviation Services Inc. was involved in an aviation accident near Carlsbad, CA. Investigators recorded the probable cause as: 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. This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive; 1 related events involving the same aircraft type or operator are linked below.

Sourcesthe U.S. National Transportation Safety Board (NTSB) historical archivePrimary reportUpdated 1781061362Data APIEditorial standards

A flight instructor and student pilot departed under Special VFR after being denied further operations due to low weather. About two minutes after exiting the control zone, the airplane struck a hill in level attitude. Toxicological tests found high antihistamine levels in the instructor.

Incident Overview

A certified flight instructor (CFI) and a student pilot were planning to conduct touch-and-go landings at an airport located approximately 15 miles east of their departure airport. At the departure airport, they completed one takeoff and landing but were subsequently denied further operations because weather conditions were below visual flight rules (VFR) minimums.

The CFI requested and received a Special VFR clearance, then departed the control zone to the east. Approximately two minutes after reporting clear of the control zone, the airplane collided with a hill about 8 miles southeast of the departure airport, at an elevation of approximately 925 feet above mean sea level (MSL). The impact occurred in a wings-level, nose-level attitude.

Weather and Toxicological Findings

A helicopter pilot operating in the area reported ceilings of approximately 800 to 850 feet MSL. Toxicological analysis of the CFI's urine revealed a high level of an antihistamine.

Circumstances

The intended destination was a nearby airport east of the departure field. No further information about the aircraft type, registration, engine count, or occupants was provided in the source. The source did not specify injuries, fatalities, or damage beyond the collision with the hill.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001212X16462. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.