# N153QS: 2013 Viking Air DHC-6-400, registration cancelled 2026-03-15

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: March 15, 2026
- Status when cancelled: Valid registration
- Airframe: [Viking Air DHC-6-400](https://openairdocs.org/model/viking-air-dhc-6-400) (registry code 9502640)
- Engine: [Pratt & Whitney Canada PT6A-34 series](https://openairdocs.org/engine/pratt-whitney-canada-pt6a-34-series) (registry code 52250)
- Data sheets: [TCDS A9EA](https://openairdocs.org/tcds/A9EA) (OpenAirDocs)
- Serial number: 869
- Year built: 2013
- Type of aircraft: Fixed wing multi engine
- Engine type: Turbo-prop
- Airworthiness: Restricted, other, aerial surveying, patrolling
- Airworthiness date: December 16, 2015
- Certificate issued: December 21, 2017
- Last registry action: April 7, 2023
- Mode S code: A0D6C3
- Owner when cancelled: [Bank Of Utah Trustee](https://openairdocs.org/faa-owner/BANK%20OF%20UTAH%20TRUSTEE)
- Location: [Salt Lake City, UT](https://openairdocs.org/faa-place/UT/Salt%20Lake%20City)
- Owner type: Corporation
- Owner's area on the map: 40.7558° N, 111.8843° W: Placed by OpenAirDocs at the center of ZIP code 84111, within about a mile (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N153QS
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=153QS
- Page: https://openairdocs.org/deregistered/N153QS-2026-03-15

From the FAA registry file of November 5, 2026, cancelled registrations. Owners' street addresses are left out. The Mode S code belongs to the N-number, not the airframe.

ADs and bulletins for the Viking Air DHC-6-400: https://openairdocs.org/model/viking-air-dhc-6-400.md

## Service difficulty reports (8)

Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model.

- [SDR 2019FA0000164](https://openairdocs.org/sdr/2019FA0000164), May 27, 2019: CONTROL QUADRANT. LOOSE. THE QUADRANT ON RUDDER TORQUE TUBE WAS FOUND TO HAVE MOVEMENT BETWEEN THE TUBE AND THE QUADRANT. UPON LAST INSTALLATION A INDEX LINE WAS PLACED ON THE TUBE AND 
- [SDR 2019FA0000163](https://openairdocs.org/sdr/2019FA0000163), May 27, 2019: CONTROL QUADRANT. LOOSE. THE QUADRANT ON RUDDER TORQUE TUBE WAS FOUND TO HAVE MOVEMENT BETWEEN THE TUBE AND THE QUADRANT. UPON LAST INSTALLATION A INDEX LINE WAS PLACED ON THE TUBE AND 
- [SDR 2019FA0000162](https://openairdocs.org/sdr/2019FA0000162), May 27, 2019: CONTROL QUADRANT. LOOSE. THE QUADRANT ON RUDDER TORQUE TUBE WAS FOUND TO HAVE MOVEMENT BETWEEN THE TUBE AND THE QUADRANT. UPON LAST INSTALLATION A INDEX LINE WAS PLACED ON THE TUBE AND 
- [SDR 2019FA0000161](https://openairdocs.org/sdr/2019FA0000161), May 27, 2019: CONTROL QUADRANT. LOOSE. THE QUADRANT ON RUDDER TORQUE TUBE WAS FOUND TO HAVE MOVEMENT BETWEEN THE TUBE AND THE QUADRANT. UPON LAST INSTALLATION A INDEX LINE WAS PLACED ON THE TUBE AND 
- [SDR 2019FA0000160](https://openairdocs.org/sdr/2019FA0000160), May 27, 2019: CONTROL QUADRANT. LOOSE. THE QUADRANT ON RUDDER TORQUE TUBE WAS FOUND TO HAVE MOVEMENT BETWEEN THE TUBE AND THE QUADRANT. UPON LAST INSTALLATION A INDEX LINE WAS PLACED ON THE TUBE AND 
- [SDR FAA2018052500164](https://openairdocs.org/sdr/FAA2018052500164), May 25, 2018: PRESSURE SWITCH. INTERMITTENT. AFTER TAKE OFF, AT 300 FT, THE NR 2 PROPELLER AUTOFEATHERED, THE AUTOFEATHER WAS SELECTED OFF AND THE PROPELLER UNFEATHERED AND RETURNED TO NORMAL OPS. TORQUE W
- [SDR 2018FA0000040](https://openairdocs.org/sdr/2018FA0000040), Jan 16, 2018: BELLCRANK. LOOSE. RUDDER TORQUE TUBE, BELL CRANK ATTACHMENT RIVETS AND BELL CRANK SHOWING SIGNS OF BEING LOOSE. ATTACH RIVETS ARE SMOKING.
- [SDR 2015FA0000367](https://openairdocs.org/sdr/2015FA0000367), Jul 6, 2015: STRUCTURE. CRACKED. THE ACFT FITTED WITH AMPHIB FLOATS HAD A NOSE GEAR FAILURE PREVIOUSLY AT 344.5 HRS. INITIAL FINDINGS OF THE FAILURE WERE THOUGHT TO BE FROM INTERGRANULAR CORROS

## NTSB investigations (1)

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [NTSB WPR23LA192](https://openairdocs.org/ntsb/WPR23LA192), May 20, 2023: Viking Air DHC-6-400 (N153QS), Half Moon Bay, CA, substantial damage, 2 fatal. Probable cause: The failure of the ferry fuel tank system to transfer fuel during a trans-Pacific flight for reasons that could not be determined, which resulted in fuel starvation and a subsequent ditching into the…

## FAA accident and incident reports (1)

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.

- [Accident 20230520011569A](https://openairdocs.org/incident/20230520011569A), May 20, 2023: Viking Air Limited DHC-6-400 (N153QS), In The Ocean La, CA, Destroyed, 2 fatal. Pilots reported to ATC engine failure due to unable to transfer fuel to the main tanks. Engines failed to operate and aircraft landed in the Ocean. Result was…

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