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ASN Wikibase Occurrence # 248141
Last updated: 27 November 2021
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Type:Silhouette image of generic C421 model; specific model in this crash may look slightly different
Cessna 421C Golden Eagle
Owner/operator:Wheels Up LLC
Registration: N84HA
MSN: 421C-1407
Fatalities:Fatalities: 0 / Occupants: 3
Other fatalities:0
Aircraft damage: Substantial
Location:St Marys Municipal Airport (OYM/KOYM), St Marys, PA -   United States of America
Phase: Landing
Departure airport:Bridgeport-Igor I. Sikorsky Memorial Airport, CT (BDR/KBDR)
Destination airport:St. Marys Municipal Airport, PA (STQ/KOYM)
The airline transport pilot sustained minor injuries and the two passengers were not injured. The airplane was operated as a Title 14 Code of Federal Regulations Part 91 corporate flight.

According to the pilot, while inbound to OYM, he believed the automated weather observation station reported
the cloud conditions at 600 ft broken 1,000 ft overcast, and visibility 1.5 miles in snow. Prior to being cleared for
the GPS approach to runway 28, air traffic control provided notices to airman (NOTAMS) regarding an
inoperative remote communications outlet, and several lighted obstructions (towers) in the vicinity of the
airport. He recalled these were the same NOTAMS that he had received prior to departure.

As he began the approach, he was able to “pick up ground contact” and just prior to reaching the minimum
descent altitude, he saw the approach lights. As he flew over the approach lights, he could see the “outline of
the runway.” On touchdown, the airplane struck a snow berm on the left side of the runway.

Examination of the accident site by a Federal Aviation Administration (FAA) inspector revealed “ground” scars in
the snow to the left of the runway edge, beginning about 1,000 ft from the approach end of runway 28. The
marks were about 250 ft long. One mark consistent with the fuselage began about 6 ft to the left of the left
runway edge, in an estimated 3-4 ft tall snowbank that remained from plowing of the runway. A parallel mark
consistent with landing gear was found to the left of the fuselage mark. Both marks tracked back to the right,
toward the left edge of the runway as they progressed along the path. Photographs of the airplane prior to it
being moved showed it at the end of the snow marks, oriented about 130° magnetic (rotated about 210° from
the runway 28 heading). At the time of the accident, the runway was covered in snow estimated to be about 3-5
inches deep. The runway edge lights, and runway end identifier lights were beneath the snow.

Examination of the airplane revealed substantial damage including bending/displacement of the forward
pressure bulkhead, buckling of the floor just forward of the pressure bulkhead, and a slight displacement of the
left wing from the fuselage at the wing root. The pilot reported that there were no preexisting mechanical
anomalies that would have precluded normal operation of the airplane.

A review of FAA records revealed that there were no NOTAMS regarding the snow on the runway, the obscuration of the runway lights, or any other field conditions issued prior to the accident.

The 1135 weather conditions reported at OYM included clouds broken at 700 ft, overcast at 1,100 ft, visibility ˝
mile in light snow. The visibility was reported as ˝ mile (in snow or light snow), during the previous observations
recorded at 1115, 1055, and 1035.



Revision history:

22-Feb-2021 20:45 Geno Added
18-Jul-2021 19:04 aaronwk Updated [Time, Nature, Destination airport, Source, Damage, Narrative, Category]

Corrections or additions? ... Edit this accident description