Casualties unknown

Aircraft Strikes Tree and Terrain During Mountain Flight (N4868F)

Tererro, NM, US

On September 15, 1991, a Cessna 172N (registration N4868F) operated by Pegasus Flight Center was involved in an aviation accident near Tererro, NM. Investigators recorded the probable cause as: A FAILURE OF THE PILOT TO MAINTAIN ADEQUATE OBSTACLE CLEARANCE IN MOUNTAINOUS TERRAIN. FACTORS WERE: LACK OF FAMILIARITY WITH THE AIRCRAFT, AND INSUFFICIENT STANDARDS BY THE OPERATOR. This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive; 3 related events involving the same aircraft type or operator are linked below.

Sourcesthe U.S. National Transportation Safety Board (NTSB) historical archivePrimary reportUpdated 2026-07-04Data APIEditorial standards

Two newly certificated private pilots on a cross-country flight in an unfamiliar aircraft struck a tree and impacted terrain while maneuvering below service ceiling over mountainous terrain.

Accident Details

The accident involved a flight operated by two newly certificated private pilots. The flight was intended as an extended cross-country trip to build experience. The duties were assigned such that one pilot was scheduled as the primary, and the other, also a newly certificated private pilot, accompanied him. The aircraft type was one that neither pilot had operated before, aside from a local checkout flight.

Terrain and Environment

The flight plan was approved for routing through an area characterized by mountainous terrain. Neither pilot had undergone training in mountain flying techniques nor possessed any experience in such conditions.

Sequence of Events

According to the investigation, while the aircraft was maneuvering at an altitude that was 700 feet below its service ceiling, it made contact with a tree. Following the tree strike, the airplane continued and impacted the terrain.

Pilot Information

Both pilots held private pilot certificates and were newly certificated. No additional qualifications or ratings were mentioned.

All Cessna 172 accidents →

Frequently asked questions

What happened in the 15 Sept 1991 Cessna 172N accident near Tererro, NM?

Two newly certificated private pilots on a cross-country flight in an unfamiliar aircraft struck a tree and impacted terrain while maneuvering below service ceiling over mountainous terrain.

What aircraft was involved and where did it happen?

The accident on 15 Sept 1991 involved a Cessna 172N, registration N4868F, operated by Pegasus Flight Center, at Tererro, NM.

What was the probable cause of the accident?

A FAILURE OF THE PILOT TO MAINTAIN ADEQUATE OBSTACLE CLEARANCE IN MOUNTAINOUS TERRAIN. FACTORS WERE: LACK OF FAMILIARITY WITH THE AIRCRAFT, AND INSUFFICIENT STANDARDS BY THE OPERATOR.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001212X18082. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.