ASN Wikibase Occurrence # 223173
This information is added by users of ASN. Neither ASN nor the Flight Safety Foundation are responsible for the completeness or correctness of this information.
If you feel this information is incomplete or incorrect, you can submit corrected information.
| Date: | Sunday 17 March 2019 |
| Time: | 17:45 LT |
| Type: |  Cessna 421B Golden Eagle II |
| Owner/operator: | Classic Solutions Co Inc |
| Registration: | N424TW |
| MSN: | 421B0816 |
| Year of manufacture: | 1974 |
| Total airframe hrs: | 8339 hours |
| Engine model: | Continental GTSIO-520-C |
| Fatalities: | Fatalities: 1 / Occupants: 1 |
| Aircraft damage: | Destroyed |
| Category: | Accident |
| Location: | SW of Delaware Municipal Airport (KDLZ), Delaware, OH -
 United States of America
|
| Phase: | Approach |
| Nature: | Executive |
| Departure airport: | Dayton-James Cox Dayton International Airport, OH (DAY/KDAY) |
| Delaware Municipal Airport, OH (KDLZ) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The pilot departed on a short cross-country flight in the twin-engine airplane. Instrument meteorological conditions (IMC) were present at the time. While en route at an altitude of 3,000 ft mean sea level, the pilot reported that the airplane was "picking up icing" and that he needed to "pick up speed." The controller then cleared the pilot to descend, then to climb, in order to exit the icing conditions; shortly thereafter, the controller issued a low altitude alert. The pilot indicated that he was climbing; radar and radio contact with the airplane were lost shortly thereafter. The airplane impacted a field about 7 miles short of the destination airport. Examination of the airplane was limited due to the fragmentation of the wreckage; however, no pre-impact anomalies were noted during the airframe and engine examinations. Extensive damage to the pitot static and deicing systems precluded functional testing of the two systems.
A review of data recorded from onboard avionics units indicated that, about the time the pilot reported to the controller that the airplane was accumulating ice, the airplane's indicated airspeed had begun to diverge from its ground speed as calculated by position data. However, several minutes later, the indicated airspeed was zero while the ground speed remained fairly constant. It is likely that this airspeed indication was the result of icing of the airplane's pitot probe. During the final 2 minutes of flight, the airplane was in a left turn and the pilot received several "SINK RATE" and "PULL UP PULL UP" annunciations as the airplane conducted a series of climbs and descents during which its ground speed (and likely, airspeed) reached and/or exceeded the airplane's maneuvering and maximum structural cruising speeds.
It is likely that the pilot became distracted by the erroneous airspeed indication due to icing of the pitot probe and subsequently lost control while maneuvering.
Probable Cause: A loss of airspeed indication due to icing of the airplane's pitot probe, and the pilot's loss of control while maneuvering.
Accident investigation:
 |
|
Sources:
https://flightaware.com/live/flight/N424TW
FAA register: https://registry.faa.gov/aircraftinquiry/NNum_Results.aspx?NNumbertxt=424TW
NTSB CEN19FA100
Location
Images:
Photos(c): NTSB
Media:
The Arizona pilot killed in Union County plane crash was a decorated @usairforce veteran and fighter pilot/instructor.
— Holly Zachariah (@hollyzachariah) 18 mars 2019
A 911 caller saw the wreckage and told a dispatcher "no way" anyone survived. 😢
NTSB is now on scene.
The latest: https://t.co/6nWO3gkKEE pic.twitter.com/MPbUnObKal
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 18-Mar-2019 01:14 | Geno | Added |
| 18-Mar-2019 01:42 | Geno | Updated [Aircraft type, Registration, Cn, Operator, Location, Phase, Departure airport, Destination airport, Source, Narrative] |
| 18-Mar-2019 09:49 | RobertMB | Updated [Aircraft type] |
| 18-Mar-2019 17:59 | harro | Updated [Registration, Source, Narrative] |
| 18-Mar-2019 22:09 | RobertMB | Updated [Source] |
| 18-Mar-2019 22:20 | Iceman 29 | Updated [Source, Embed code] |
| 29-Mar-2021 17:38 | ASN Update Bot | Updated [Time, Other fatalities, Nature, Source, Narrative, Category, Accident report] |
| 11-Mar-2022 18:26 | Captain Adam | Updated [Source, Embed code, Narrative, Photo] |
| 11-Mar-2022 18:26 | Captain Adam | Updated [Photo] |
Corrections or additions? ... Edit this accident description
The Aviation Safety Network is an exclusive service provided by:
Quick Links:
| ASN Home | Send Correction / Feedback |
| FSF Home | Disclaimer | Copyright |
| Contact Us | Privacy Policy |
| Press / Media |
CONNECT WITH US:
©2024 Flight Safety Foundation