NTSB Accident and Incident Investigations 1

Air Safety Week, Sept 6, 1999

U.S. AIR CARRIER INCIDENTS OR ACCIDENTS, OR OTHER ACCIDENTS INVOLVING SERIOUS OR FATAL INJURIES, BEING INVESTIGATED BY THE NATIONAL TRANSPORTATION SAFETY BOARD

DATE & SITE:  8/2 - Grants, N.M.
AIRCRAFT & REGISTRATION:  Cessna 172P   N6497K (Robertson Aviation)
CIRCUMSTANCES:  Inflight upset/impacted mountainous terrain/
DEATHS & INJURIES:  conditions unknown/D5
NTSB ID#:  1 - Fatal
PRELIMINARY ANALYSIS:  DEN99FA142
Impacted with mountainous terrain for reason(s) not yet determined.

DATE & SITE:  8/2 - Johnson Valley, Calif.
AIRCRAFT & REGISTRATION:  Porterfield CP-65   N32409
CIRCUMSTANCES:  Loss of control and crashed while on approach/VMC3/D
DEATHS & INJURIES:  1 - Fatal
NTSB ID#:  LAX99FA261
PRELIMINARY ANALYSIS:  Stall & loss of control after encountering
engine problem(s) of undetermined nature.

DATE & SITE:  8/4 - Atlanta
AIRCRAFT & REGISTRATION:  Canadair CL-600-2B19 (Regional Jet)   N571ML
(Midway Airlines)
CIRCUMSTANCES:  Crew experienced a left thrust reverser unlock light
illumination at cruise/VMC/D
DEATHS & INJURIES:  0 - Injured
NTSB ID#:  MIA99SA214
PRELIMINARY ANALYSIS:  Unscheduled landing because of faulty "Reverser
Unlock" indication/fault due to Thrust Reverser Flight Data
Acquisition units.

DATE & SITE:  8/5 -  Kenai, Alaska
AIRCRAFT & REGISTRATION:  Cessna 180   N8TL (Opportunity Flying Club)
CIRCUMSTANCES:  Aircraft struck tree at cruise/VMC/D
DEATHS & INJURIES:  2 - Fatal
NTSB ID#:  ANC99FA106
PRELIMINARY ANALYSIS:  Struck obstacle after possible encounter with
IMC and high wind conditions.

DATE & SITE:  8/7 - Anaktuvuk, Alaska
AIRCRAFT & REGISTRATION:  Piper PA-18-150   N4996V (Alaskan Wilderness
Adventures)
CIRCUMSTANCES:  Collided w/mountainous terrain/VMC/D
DEATHS & INJURIES:  2 - Fatal
NTSB ID#:  ANC99FA110
PRELIMINARY ANALYSIS:  Flight operation at insufficient altitude to
provide safe terrain clearance during game spotting operation in
mountainous terrain.

1 U.S. air carrier incidents or accidents, or other accidents
involving serious or fatal injuries, being investigated by the
National Transportation Safety Board.
2DISCLAIMER: The information obtained from the NTSB is preliminary,
possibly incomplete, and may be supplemented by new findings of fact
as the inquiry progresses. These assessments, based on a reading of
initial reports, are not intended to assert probable cause or
liability, but rather are intended to provide insight pending
publication of a final report of investigation.
3 Visual meteorological conditions.  4 Instrument meteorological
conditions.  5 D=Day; N=Night.
-Data, exclusive of Rudolf Kapustin's preliminary analysis, compiled
from National Transportation Safety Board documents.