# N251SA: 1977 Dehavilland DHC-6 TWIN OTTER, registration cancelled 2016-06-29

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: June 29, 2016
- Exported to: Guatemala
- Status when cancelled: Sale reported
- Airframe: [Dehavilland DHC-6 TWIN OTTER](https://openairdocs.org/model/dehavilland-dhc-6-twin-otter) (registry code 2802606)
- Engine: [Pratt & Whitney PT6A series](https://openairdocs.org/engine/pratt-whitney-pt6a-series) (registry code 52032)
- Serial number: 524
- Year built: 1977
- Type of aircraft: Fixed wing multi engine
- Engine type: Turbo-prop
- Airworthiness: Standard, normal
- Airworthiness date: June 11, 1996
- Last registry action: June 28, 2016
- Mode S code: A25CC6
- Location: [Xxx, OK](https://openairdocs.org/faa-place/OK/Xxx)
- Owner type: Individual
- The mark today: https://openairdocs.org/aircraft/N251SA
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=251SA
- Page: https://openairdocs.org/deregistered/N251SA-2016-06-29

From the FAA registry file of October 29, 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 Dehavilland DHC-6 TWIN OTTER: https://openairdocs.org/model/dehavilland-dhc-6-twin-otter.md

## Service difficulty reports (10)

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

- [SDR S9BA20100008](https://openairdocs.org/sdr/S9BA20100008), Nov 7, 2010: INDICATOR. INOPERATIVE. DME INOPERATIVE, SMOKE CAME OUT OF UNIT. TURNED OFF UNIT. FLIGHT CONTINUED IAW MEL 34-4-11 KN 62A, SN 20640 TO BE SENT FOR TEARDOWN REPORT.
- [SDR S9BA200700018](https://openairdocs.org/sdr/S9BA200700018), Oct 1, 2007: ATTACH BRACKET. CORRODED. NOSE LANDING GEAR LOWER MOUNTING FITTING CORRODED.
- [SDR S9BA0907](https://openairdocs.org/sdr/S9BA0907), May 16, 2007: ADAPTER. CORRODED. OB ENGINE MOUNT ADAPTOR ON LT NACELLE IS CORRODED. REPLACED MOUNT ADAPTOR PLATE IAW RD6-54-006.
- [SDR S9BA0807](https://openairdocs.org/sdr/S9BA0807), May 16, 2007: STRUT. CORRODED. LT WING STRUT LOWER MOUNT CORRODED BEYOND LIMITS, REMOVED AND REPLACED LT WING STRUT.
- [SDR S9BA00207](https://openairdocs.org/sdr/S9BA00207), Mar 7, 2007: COMPRESSOR WHEEL. DAMAGED. LT ENGINE VIBRATION OCCURRED WHEN MOTORED AFTER FUEL LINE REPLACEMENT. REMOVED AND HAD C/T DISK ASSEMBLY OVERHAULED INSTALLED SAME ASSEMBLY. (SULFIDATION)
- [SDR S9BA00107](https://openairdocs.org/sdr/S9BA00107), Mar 7, 2007: FUEL LINE. CRACKED. PERFORMED PRECAUTIONARY SHUTDOWN DUE TO A MAJOR FUEL LEAK SIGHTED COMING FROM THE LT ENGINE. REPLACED FUEL LINE FROM FCU TO TOP OF START CONTROL.
- [SDR S9BA00106](https://openairdocs.org/sdr/S9BA00106), Sep 22, 2006: RECEPTACLE. CORRODED. NO EXTERNAL POWER. REMOVED AND REPLACED EXTERNAL POWER RELAY PN MS24171-D1. REMOVED AND REPLACED EXTERNAL POWER RECEPTACLE MS3506-1.
- [SDR S9B2006F00002](https://openairdocs.org/sdr/S9B2006F00002), May 1, 2006: LONGERON. CRACKED. RT ENGINE IB LONGERON CRACKED. REMOVED AND REPLACED IB LONGERON ON RT ENGINE NACELLE IAW AC. (K)
- [SDR S9B2006F00001](https://openairdocs.org/sdr/S9B2006F00001), Mar 30, 2006: DRAIN LINE. CRACKED. (REF NR 251-06) RT ENGINE DRAIN PIPE ASSY CRACKED. REMOVED AND REPLACED RT DRAIN PIPE ASSY IAW MM. NO DEFECTS NOTED.
- [SDR SABA9804](https://openairdocs.org/sdr/SABA9804), Jun 28, 1998: SWITCH. FAILED. KIA/KTN - ON FLIGHT, CREW REPORTED ON LOG PAGE 16304 'UNSCHEDULED AUTOFEATHER RIGHT SIDE ON TAKEOFF'. THE CREW RETURNED TO DOCK WITH NO FURTHER PROBLEM. REPLACE

## Other aircraft with N251SA

- [Registered now](https://openairdocs.org/aircraft/N251SA): Diamond Aircraft Ind DA 62, S/N 62.C077, built 2024

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