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ASN Wikibase Occurrence # 249467
Last updated: 30 November 2021
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Type:Silhouette image of generic PA27 model; specific model in this crash may look slightly different
Piper PA-23-250 Aztec C
Owner/operator:Highland Rim Aviation LLC
Registration: N5018Y
MSN: 27-2020
Fatalities:Fatalities: 0 / Occupants: 2
Other fatalities:0
Aircraft damage: Written off (damaged beyond repair)
Location:Springfield Robertson County Airport (M91), Springfield, TN -   United States of America
Phase: Initial climb
Departure airport:Springfield Robertson County Airport (M91)
Destination airport:Springfield Robertson County Airport (M91)
The flight instructor and the commercial-rated student pilot were seriously injured. The instructional flight was conducted under the provisions of Title 14 Code of Federal Regulations Part 91.

The flight was operated by Highland Rim Aviation, LLC, and the purpose of the flight was to conduct
multi-engine training in the twin-engine airplane. The local visual flight rules instructional flight
departed from Springfield-Robertson County Airport (M91), Springfield, Tennessee about 0947.

According to witnesses, their attention was drawn to the airplane during its takeoff roll from runway 22
due to its “unusual” sound that was inconsistent with takeoff power. One witness said he could not
discern if one engine or both engines were making “continuous sputtering/backfiring” sounds. He said
the “obviously abnormal sound drew the attention of many of us out to observe the airplane struggle into
the air.” The witness, an airline transport pilot and airframe and powerplant mechanic, stated the
airplane “didn’t climb much above 100[ft] agl” while on runway heading and that the landing gear
remained extended until the departure end of the runway. Shortly thereafter, the airplane entered a
shallow turn to its left until the airplane disappeared behind a tree line.

Another witness described “popping, sputtering, and crackling noises” and said that the airplane was
“clearly struggling to climb” when it disappeared from her view.

A preliminary review of Automatic Dependent Surveillance-Broadcast (ADS-B) and radar data provided
by the Federal Aviation Administration (FAA) revealed that the airplane departed from runway 22. The
airplane achieved a groundspeed of 86 knots about midfield, and once off the ground, slowed, and then
never achieved a groundspeed above 80 knots. The track depicted a shallow climb for about 1 mile,
where about 200ft agl the track depicted a descending, decelerating turn to the left. The radius of the
turn tightened until the last target was recorded in the vicinity of the accident site, about ground level, at
59 knots groundspeed.

The airplane was examined and photographed by two FAA aviation safety inspectors. Examination of
the photographs revealed that the cockpit and cabin areas were destroyed by impact and came to rest
inverted. The wings were mostly separated but remained attached by cabling and sheet metal. The
engines were in their nacelles, and the propeller blades of the left engine appeared undamaged and in
what approximated a feathered position. The propeller blades of the right engine displayed similar
twisting, bending, leading edge gouging, chordwise scratching and tip curling.



Revision history:

05-Apr-2021 17:34 Geno Added
05-Apr-2021 18:48 Captain Adam Updated [Aircraft type, Registration, Cn, Operator, Source]
05-Apr-2021 19:41 RobertMB Updated [Damage, Narrative]
06-Apr-2021 15:33 w4cgp Updated [Date]
19-Jul-2021 14:04 aaronwk Updated [Time, Phase, Source, Narrative, Category]

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