Pilot Debrief

BOEING B75N1 near Fredericksburg, TX — 2019-05-29

Final reportCEN19LA158
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Date
2019-05-29
Location
Fredericksburg, TX, USA
Aircraft
BOEING B75N1
Registration
N60955
Category
Airplane
Highest injury
Minor
Fatalities
0
Phase of flight
Climb

Probable cause

The loss of engine power for undetermined reasons.

NTSB narrative

The pilot was on approach to a private airstrip when the engine began to run rough. During the forced landing to rough terrain the airplane sustained substantial damage to the wings and the fuselage. After the accident the pilot stated that he suspected an uncommanded feather of the right propeller blade due to a maintenance issue. An examination of the airframe, engine, and propeller revealed no mechanical anomalies that would have precluded normal operations. According to the icing probability chart contained within Federal Aviation Administration Special Airworthiness Information Bulletin CE-09-35, atmospheric conditions at the time of the accident were conducive for serious icing at glide power, which could result in a loss of power and/or a rough running engine. It is unknown if the engine was at glide power or if the pilot had selected to use carburetor heat.

Analysis

Primary failure mode
Mechanical failure
First missed decision gate
Pilot could have landed at the airstrip instead of overflying it.

NTSB coding

Evidence available

  • Photos
  • 8 docket documents
View NTSB final reportView NTSB docket

Docket documents8

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