DFW08LA187

NTSB accident investigation · AMS Flight Carat A · Edgewood, NM · July 16, 2008

Accident · Serious injuriesLimited investigationFinal report
Date
July 16, 2008, 14:20 local (20:20 UTC)
Place
Edgewood, NM
Injuries
1 serious
Damage
Substantial damage
Phase of flight
Emergency descent
Aircraft
N234CTAMS Flight Carat A
Defining event
Emergency descent: Aerodynamic stall/spin
Weather
Visual (VMC) · Day
Status
Completed · report May 12, 2009
Report
Approved by Office Director
Parties
Albuquerque FSDO
FAA report
20080716841439A
Case key
68456

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

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Probable cause

The pilot's failure to maintain adequate airspeed while maneuvering at low altitude resulting in an inadvertent aerodynamic stall and impact with terrain.

Findings · 2

NTSB’s coded findings. Those marked are part of the probable cause; the rest are factors or other findings. Under each, the cases with the same finding.

Performance/control parameters: airspeedAircraft › Aircraft oper/perf/capability · Not attained/maintainedAMS Flight D O O CARAT A: 1 caseAll aircraft: 1,681 casesProbable cause

Sequence of events

The events NTSB coded, in order, by phase of flight. The defining event is the one that best describes the accident. Under each, the cases with the same event anywhere in their sequence.

Analysis

The motor glider had been soaring for approximately one-half hour when lift disappeared and it began to get into an area of significant sink. The private pilot was unable to restart the engine and attempted an emergency landing in rocky, hilly terrain. A witness saw the glider suddenly pitch down and "nose dive" into the ground from an altitude of approximately 150 feet AGL . An examination of the glider wreckage revealed damage consistent with a nose-low, nearly vertical impact.

Factual narrative

On July 16, 2008, approximately 1400 mountain daylight time, an AMS Flight Carat A glider, N234CT, was substantially damaged when it impacted terrain while maneuvering for an emergency landing near Edgewood, New Mexico. The private pilot, who was the sole occupant and registered co-owner of the glider, sustained serious injuries. Visual meteorological conditions prevailed and a flight plan was not filed for the Title 14 Code of Federal Regulations (CFR) Part 91 personal flight. The local flight departed the Moriarty Airport (0E0), Moriarty, New Mexico, approximately 1330.

The accident flight was the second flight of the day for the pilot. The motorized glider had self launched to the soaring area west of Moriarty and had been soaring for approximately one half hour when the lift disappeared and the glider got into an area with significant sink. The pilot said he was unable to restart the engine and began planning for an off-field emergency landing and that the landing area available was marginal and littered with six to ten foot tall juniper trees.

A witness about 150 yards away from the impact location observed the glider heading northeast and estimated it to be approximately 150 feet above the ground when she saw it suddenly "nose-dive" into the ground. Emergency rescue crews arrived on the scene within 15 minutes after the crash.

Responding Federal Aviation Administration (FAA) inspectors reported that the glider struck the ground next to a small juniper tree in a near perpendicular attitude and came to rest upright facing opposite to the direction of travel as described by the witness and remained mostly intact. The canopy had separated from the aircraft and the tail was broken but not completely separated from the aircraft. The "beak" propeller was found with both blades driven tip first straight into the ground. The spoilers and landing gear were extended and the landing gear switch was found in the down position. An oxygen nasal canula was found connected but the oxygen system's automatic function did not appear to be turned on. The fuel tank had ruptured; however an odor of fuel was detected by the inspector several hours after the crash. Control continuity was established from the cockpit to the flight control surfaces. No anomalies were noted that would have precluded normal operation.

According to another pilot familiar with the accident glider, the spoilers can be locked in an extended position and that landings are typically done with the spoilers extended one to one and one half inches. However, if the spoilers are extended abruptly to the full extend position, the aircraft severely pitches nose down.

Aircraft

Registration
N234CT
Reported as
AMS Flight Carat A
Category
Glider
Serial number
CA011
Airframe hours
72
Engine
Sauer S 1800, 60 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Standard, Utility
Last inspection
Annual · April 27, 2008 · 7 hours before
Departed
0E0 · Moriarty, NM
Airport
0E0 · Moriarty

Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
63
Injuries
Serious
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, With waivers/limitations
Last flight review
August 16, 2006
Seat
Single
Flight hours
623 total · 16 in this make and model

Weather

Conditions
Visual (VMC) · Day
Wind
Calm
Visibility
10 statute miles
Lowest ceiling
None
Temperature
84 °F, dew point 54 °F
Altimeter
30.17 inHg
Observed at
KABQ, 21 nm away

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.