# Incident 20220815021049I: Cessna 414A, Mitchell, SD, August 15, 2022

- Type: FAA incident report (Accident/Incident Data System), as reported
- Date: August 15, 2022, 16:11 local time
- Place: Mitchell, SD
- Airport: Mitchell
- Damage: No damage
- Phase of flight: Hover/Holding
- Operating rules: General operating rules (Part 91)
- Location: 43.7748° N, 98.0386° W: Placed by OpenAirDocs at MITCHELL MUNI (MHE), within about a mile (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=43.7748&lon=-98.0386&mi=10
- Aircraft: N2688D, registered now (https://openairdocs.org/aircraft/N2688D) (OpenAirDocs)
- Registry model: Cessna 414A (registry code 2075907, https://openairdocs.org/model/cessna-414a) (OpenAirDocs)
- Registry engine: Continental TSIO-520 series (registry code 17040, https://openairdocs.org/engine/continental-tsio-520-series) (OpenAirDocs)
- Reported make and model: CESSNA 414A
- Reported engine: CONT MOTOR TSIO-520 SER
- People aboard: 1
- Fatal injuries: 0
- Other injuries: 0
- Pilot certificates: Commercial pilot, flight instructor, private pilot
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/20220815021049I

## Narrative

As the FAA filed it, in capitals; the FAA replaces private details with ^PRIVACY DATA OMITTED^.

DESCRIPTION :^PRIVACY DATA OMITTED^ WAS HOLDING AT MHE VOR AT 5,000 FT. ASSIGNED BY ZMP AS LOWER TRAFFIC  ^PRIVACY DATA OMITTED^ WAS CLEARED FOR THE APPROACH AT KMHE STARTING AT A LOWER ALTITUDE OF 4,000FT . RADAR TRACKING ON THE FALCON APPLICATION SHOWED ^PRIVACY DATA OMITTED^DEVIATING BELOW HIS ASSIGNED ALTITUDE IN THE HOLD TO AN ALTITUDE OF 4,200FT ON THE TURN OUTBOUND IN THE HOLD'(THIS SHOWED ON FALCON RADAR DISPLAY AS OCCURRING IN MILLISECONDS! )  IIC INTERVIEWED DEVIATING PILOT WHO STATED THAT THE AUTOPILOT ALTITUDE HOLD HAD DISENGAED AT THAT TIME,AND HE HAD ONLY DEVIATED 200FT LOW AND HAD IMMEDIATELY CORRECTED BACK TO HIS ASSIGNED ALTITUDE ON THE CALL FROM ZMP. THIS  CONSTITUTED AN ALTITUDE DEVIATION BY ^PRIVACY DATA OMITTED^. CAUSAL/CONTRIBUTING FACTORS:  IIC BELIEVES THAT THE AUTOPILOT MALFUNCTION AND POSSIBLE MODE C ALTITUDE MALFUNCTION WAS THE MAIN CAUSE OF THIS DEVIATION.  A POSSIBLE LACK OF PILOT VIGILANCE IN THE HOLD CONTRIBUTED TO THIS DEVIATION. CORRECTIVE ACTION: PILOT IS A TRAINED PROFESSIONAL WITH PROPER CHECKING AND INSTRUMENT CURRENCY, AND IS  AN ACTIVE CFI, IIC COUNSELED PILOT ON ALTITUDE MAINTAINING VIGILANCE IN IMC TRAFFIC SITUATIONS WHILE HOLDING. IIC ALSO SUGGESTED AUTOPILOT AND ALTIMETER TRANSPONDER CHECKS AFTER HIS REVIEW OF FALCON ALTITUDE DISPLAY WHICH SEEMED TO BE PHYSICALLY IMPOSSIBLE' NO FURTHER COMMENTS.  SAS AR#GL27202201297

## Other reports on N2688D (2)

Matched to the same aircraft by N-number and date.

- [Incident 19900523027039I](https://openairdocs.org/incident/19900523027039I), May 23, 1990: Cessna 414A (N2688D), Stockton, CA, Minor damage. Left engine vibrating. Diverted to Stockton. NR4 cylinder had split near head and piston skirt ingested into engine.
- [Incident 19820121000589I](https://openairdocs.org/incident/19820121000589I), Jan 21, 1982: Cessna 414 (N2688D), Grass Valley, CA, Minor damage. Slid right on takeoff, hit snow bank left by plow. Pulled aircraft off runway prematurely, hit snow bank again.

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. For accidents, the NTSB's own investigation is the fuller record.

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