1976 Cessna 421CMulti-Engine Piston Aircraft • Billings, MT, USA
This 1976 Cessna 421C, registration N421TT, is a pressurized piston twin based in Billings, Montana, and is offered at $275,000 with a useful load of 2,213.75 lb. The airframe shows 5,321.3 total hours. Both engines are reported as very low time relative to typical ACTT: the left Continental GTSIO520L1BN (375 HP, turbocharged) has 356.1 hours since new, installed in 2023, leaving 1,243.9 hours to its 1,600-hour TBO, while the right Continental GTSIO520L (374 HP, turbocharged) has 112.3 hours since major overhaul, overhauled in 2025, with 1,487.7 hours remaining to TBO and 3,060.5 total hours since new. Both McCauley 3FF32C501-A three-blade...
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Specifications
- Category
- Multi-Engine Piston
- Intended Use
- Business, Passenger
- Flight Rules
- IFR
- Useful Load
- 2,213.75 lbs
- Seats
- 8
Hours, Logs & Inspections
- Total Time
- 5,321.3 hrs
- Engine 1 Time
- 356.1 hrs (SNEW)
- Engine 2 Time
- 112.3 hrs (SMOH)
- Prop 1 Time
- 402.5 hrs (SOH)
- Prop 2 Time
- 402.5 hrs (SOH)
- Logbook Status
- Complete Logs Yes
- Inspection Status
- Delivering with Fresh Annual as of October 2026. 91.411, 91.413, 91.207d all c/w April 2025. O2 tank hydro c/w June 2024. Nitro tank hydro c/w 12/2015.
Avionics
GPS
Garmin GNS 530W - GNS WAAS GPS
Comms
KY-196 - AreaNav, Audio/ICS
AP
ARC Autopilot
ADSB
Garmin GTX 345 - ADS-B Equipped via GTX Transponder
MFD
Flightmax 450 - MFD with Bendix Weather Radar
EMS
E.I. Gemini 1200 - E.I. G.E.M. with Fuel Flow
Weather
Insight Avionics SF 2000 - SF Lightning Detector;
Additional Equipment
Pressurization
Pressurized cabin
Oxygen System
Oxygen system; O2 tank hydro'ed 6/2024
Air Conditioning
R12 Freon A/C - still runs cold
Auxiliary Fuel Tank
Propeller Sync
Props sync
Yaw Damper
Chronometer
Davtron M803 - Chronometer
Interior & Exterior
- Paint Year
- 1998
- Interior Notes
- Due for an extensive interior refurbishment; headliner is okay, but new plastics, carpet, seat covers, side panels etc. all due for replacement/refurbishment.
- Exterior Notes
- Due for a good paintjob, for ramp appeal. Paint was redone in 10/1998 along with new windshields. Deice boots are older (10/1998) but in very good shape.
Engine & Propeller
- Engine Type
- Piston
- Engine Count
- 2
- Engine Make
- Continental
- Engine Model
- GTSIO520L1BN / GTSIO520L
- Engine Power
- 375 HP
- Propeller Model
- McCauley 3FF32C501-A (3-blade, aluminum)
Asking Price
$275,000
Aircraft Location
Billings, MT, USA
Listing Details
- Used
- For Sale
Price History
Mar 4, 2026: $275,000(-$45,000) - controller
Oct 21, 2025: $320,000(-$25,000) - controller
Sep 5, 2025: $345,000 - controller
Contact Seller
Asking Price
$275,000
Aircraft Location
Billings, MT, USA
Listing Details
- Used
- For Sale
Price History
Mar 4, 2026: $275,000(-$45,000) - controller
Oct 21, 2025: $320,000(-$25,000) - controller
Sep 5, 2025: $345,000 - controller
Contact Seller
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1976 Cessna 421C
- Total Time
- 4,155 hrs
- Engine Time
- 359 | 359 hrs
- Prop Time
- 359 | 359 hrs
- Tail #
- Unspecified
- Flight Rules
- IFR
- Useful Load
- Unspecified
1976 Cessna 421C
- Total Time
- 6,939 hrs
- Engine Time
- 592 | 592 hrs
- Prop Time
- 592 | 592 hrs
- Tail #
- N421TD
- Flight Rules
- IFR
- Useful Load
- 2,272 lbs
1976 Cessna 421C
- Total Time
- 4,898 hrs
- Engine Time
- 763 | 776 hrs
- Prop Time
- 408 | 408 hrs
- Tail #
- N925BK
- Flight Rules
- IFR
- Useful Load
- Unspecified
1977 Cessna 421C
- Total Time
- 6,214 hrs
- Engine Time
- 16 | 1,068 hrs
- Prop Time
- 92 | 92 hrs
- Tail #
- N87PP
- Flight Rules
- IFR
- Useful Load
- 2,459 lbs
1977 Cessna 421C
- Total Time
- 4,805 hrs
- Engine Time
- 1,424 | 625 hrs
- Prop Time
- 197 | 197 hrs
- Tail #
- N878DM
- Flight Rules
- IFR
- Useful Load
- Unspecified
1977 Cessna 421C
- Total Time
- 4,727 hrs
- Engine Time
- 1,428 | 1,428 hrs
- Prop Time
- 620 | 620 hrs
- Tail #
- N90MK
- Flight Rules
- IFR
- Useful Load
- Unspecified
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Asking Price
$275,000