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Aviation safety reports, made easier to study

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October 22, 1994 · Cessna 172H · N2721L

Tres Piedras, NM

Overview

Report Status
Final with probable cause
Event Type
Accident
Date
October 22, 1994
Injury Outcomes
2 injuries (2 minor injuries), 2 uninjured
Location
Tres Piedras, NM
Aircraft
Cessna 172H
Tail Number
N2721L
Operator
Macwherter George W
Injuries
Minor
Aircraft Damage
Destroyed
NTSB Number
FTW95LA025

DURING A CROSS COUNTRY FLIGHT THE AIRCRAFT WAS REQUIRED TO CLEAR 10,000 FOOT MOUNTAINS. AS THE PILOT BEGAN HIS CLIMB HE REALIZED THE AIRCRAFT COULD NOT CLEAR THE RIDGE LINE SO HE ATTEMPTED TO TURN THE AIRCRAFT 180 DEGREES. DURING THE TURN TO THE LEFT HE NOTICED THE AIRSPEED HAD DROPPED FROM 80 - 90 KNOTS TO 60 KNOTS, AND THE GPS WAS INDICATING A 'SLOW GROUND SPEED.' HE ALSO RECALLED HEARING THE STALL WARNING HORN AND THE AIRCRAFT'S NOSE DIPPING. THE AIRCRAFT STRUCK SEVERAL TREES AND DESCENDED OUT OF CONTROL TO GROUND IMPACT.

NTSB Probable Cause

THE PILOT'S INADEQUATE INFLIGHT PLANNING WHICH LED TO MANEUVERING AT SLOW AIRSPEED TO AVOID TERRAIN WHICH RESULTED IN FURTHER LOSS OF AIRSPEED AND AN AERODYNAMIC STALL.

Full Narrative

On October 22, 1994, approximately 1525 mountain daylight time, a Cessna 172H, N2721L, was destroyed when it collided with trees near Tres Piedras, New Mexico. The airplane, owned and operated by the private pilot, was on a personal cross country flight. There was no flight plan filed and visual meteorological conditions prevailed. The pilot and the three passengers received minor injuries. According to the pilot, in an interview conducted by a Federal Aviation Administration (FAA) inspector, after refueling in Raton, New Mexico, he was en route to Durango, Colorado, via the pass between Raton and Taos, New Mexico. In the initial FAA interview and subsequent interviews with the state police the pilot stated that the "terrain in the pass out climbed the performance of the airplane" and he attempted a 180 degree turn to the left at 80 - 90 knots in order to "return to lower terrain." The pilot stated that during the turn the aircraft's airspeed was "60 knots" on the airspeed indicator, and the GPS indicated a "slow ground speed." He further reported that he heard the sound of the "stall warning horn." The pilot also recalled that after he heard the stall warning horn, the "nose pitched down to the low wing," the left wing. During the uncontrolled descent the airplane clipped aspen trees and then collided with the ground. The accident site elevation was approximately 10,560 feet MSL.

Flight

Event TypeAccident
Event Time15:25 MDT
Nearest Airport0nm
Runway0
Flight Plan FiledNone
Aircraft FireUnknown
Aircraft ExplosionNo

Aircraft

AircraftCessna 172H
Tail NumberN2721L
Aircraft CategoryAir
DamageDestroyed
OperatorMacwherter George W
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsContinental · O-300-D · Reciprocating · 145
Seats4

People & Injuries

Injury Summary2 injuries (2 minor injuries), 2 uninjured
Fatal0
Serious0
Minor2
Uninjured2
Total4
Crew 1Age 69 · Third Class

Conditions

ConditionsVMC
LightDaylight
WindCalm
Visibility10 sm
CeilingNone
Temperature / Dew Point0 C / 0 C
Altimeter0

Appendix: Source Data