# N216CS: 1983 Beech C-99

- Status: Valid registration
- Airframe: [Beech C-99](https://openairdocs.org/model/beech-c-99) (registry code 1154006, 17 seats)
- Engine: [Pratt & Whitney PT6A series](https://openairdocs.org/engine/pratt-whitney-pt6a-series) (registry code 52032)
- Data sheets: [TCDS A14CE](https://openairdocs.org/tcds/A14CE) (Textron Aviation Inc.) (OpenAirDocs)
- Serial number: U-216
- Year built: 1983
- Type: Fixed wing multi engine
- Engine type: Turbo-prop
- Airworthiness: Standard, normal
- Airworthiness date: November 15, 1991
- Certificate issued: April 8, 2004
- Expires: February 28, 2030
- Mode S code: A1D00F
- Registered owner: [Alpine Aviation Inc](https://openairdocs.org/faa-owner/ALPINE%20AVIATION%20INC)
- Location: [Provo, UT](https://openairdocs.org/faa-place/UT/Provo)
- Owner type: Corporation
- Owner's area on the map: 40.2272° N, 111.6958° W: Placed by OpenAirDocs at the center of ZIP code 84601, within about 2 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=216CS
- Page: https://openairdocs.org/aircraft/N216CS

From the FAA registry file of October 21, 2026. ADs below are matched by the registry's airframe and engine model codes. They may apply; each AD's applicability can narrow it by serial number, part number or installed equipment. This is not a compliance determination. The registry lists only the engine series, so ADs for every Pratt & Whitney PT6A model are included.

## ADs that may apply (OpenAirDocs): 52 in force

### Matched by airframe (Beech C-99)

- [AD 2023-10-02](https://openairdocs.org/ad/2023-10-02): Indicating/Recording System, Navigation · Boeing 18, 23, 35 and 1,060 more. Effective May 26, 2023
- [AD 2020-25-01](https://openairdocs.org/ad/2020-25-01): Wings · Textron 100, 65-90, 65-A90 and 17 more. Effective Jan 11, 2021
- [AD 2006-13-10](https://openairdocs.org/ad/2006-13-10): Rudder trim tab · Textron 100, 65-90, 65-A90 and 18 more. Effective Aug 7, 2006
- [AD 2005-18-20](https://openairdocs.org/ad/2005-18-20): "FASTprop" propeller de-icers · Hartzell PHC-C3YF-1RF/F8468A(B,K)-8R constant speed propeller (STC SA00718LA or 17 others). Effective Oct 14, 2005
- [AD 2005-01-19](https://openairdocs.org/ad/2005-01-19): Mode S transponders · GARMIN International GTX 330D, GTX 330, GTX 33D and 830 more. Effective Feb 23, 2005
- [AD 2005-01-04](https://openairdocs.org/ad/2005-01-04): Fuel hose · Textron 100, 200, 200C and 29 more. Effective Feb 22, 2005
- [AD 2004-23-02](https://openairdocs.org/ad/2004-23-02): Nose Landing Gear (NLG) Fork · Textron 100, 1900, 1900C and 50 more. Effective Dec 23, 2004
- [AD 2004-17-02](https://openairdocs.org/ad/2004-17-02): Cross shaft attach bolt · Textron 100, 1900, 1900C and 52 more. Effective Oct 4, 2004
- [AD 2003-02-03](https://openairdocs.org/ad/2003-02-03): Airstair door and emergency exits · Textron 100, 200, 2000 and 46 more. Effective Mar 7, 2003
- [AD 2001-11-04](https://openairdocs.org/ad/2001-11-04): Main Landing Gear Hydraulic Actuator and Caps · Textron 99, 99A, 99A (FACH) and 4 more. Effective Jul 23, 2001
- [AD 97-25-03](https://openairdocs.org/ad/97-25-03): AFM - Limitations - Power Levers · Textron 100, 1900, 1900C and 44 more. Effective Jan 21, 1998
- [AD 97-06-06](https://openairdocs.org/ad/97-06-06): Pilot and Copilot Chairs Locking Pins · Textron 100, 1900, 1900C and 43 more. Effective May 9, 1997
- [AD 96-09-13](https://openairdocs.org/ad/96-09-13): AFM - Icing · Textron 1900, 1900C, 1900D and 7 more. Effective Jun 11, 1996
- [AD 92-15-13](https://openairdocs.org/ad/92-15-13): Wing Structure · Textron 99, 99A, 99A (FACH) and 4 more. Effective Aug 24, 1992
- [AD 92-15-01](https://openairdocs.org/ad/92-15-01): Truss-To-Firewall Bolts · Textron 100, 200, 200C and 40 more. Effective Aug 21, 1992
- [AD 90-12-07](https://openairdocs.org/ad/90-12-07): Wing Attach Bolts and Nuts · Textron 99, 99A, 99A (FACH) and 4 more. Effective Jul 2, 1990
- [AD 87-03-06 R1](https://openairdocs.org/ad/87-03-06-R1): Elevator Hinge Attachment · Textron 100, 99, 99A and 5 more. Effective Mar 12, 1987
- [AD 85-22-05](https://openairdocs.org/ad/85-22-05): Nuts and Bolts Replacement · Textron 100, 200, 200C and 60 more. Effective Nov 12, 1985
- [AD 69-24-02 R3](https://openairdocs.org/ad/69-24-02-R3): Maximum Speed · Textron 99, 99A, 99A (FACH) and 4 more. Effective Apr 11, 1983
- [AD 72-26-01](https://openairdocs.org/ad/72-26-01): Nose Compartment Door Latch · Textron 99, 99A, 99A (FACH) and 4 more. Effective Dec 21, 1972
- [AD 72-09-03](https://openairdocs.org/ad/72-09-03): Security of Control Wheel Adapters · Textron 99, 99A, 99A (FACH) and 4 more. Effective May 2, 1972
- [AD 71-06-01](https://openairdocs.org/ad/71-06-01): Faults, Failures and Improper Operation · Textron 99, 99A, 99A (FACH) and 4 more. Effective Oct 19, 1971
- [AD 71-05-03](https://openairdocs.org/ad/71-05-03): Known Icing Conditions · Textron 99, 99A, 99A (FACH) and 5 more. Effective Jul 16, 1971
- [AD 70-10-01](https://openairdocs.org/ad/70-10-01): Instrument Panel Circuit Boards · Textron 99, 99A, 99A (FACH) and 4 more. Effective Jun 3, 1971
- [AD 69-08-02](https://openairdocs.org/ad/69-08-02): Elevator Spar Web · Textron 99, 99A, 99A (FACH) and 4 more. Effective Jun 3, 1971
- [AD 69-06-06](https://openairdocs.org/ad/69-06-06): Rudder Spar · Textron 65-80, 65-88, 65-90 and 12 more. Effective Jun 3, 1971

### Matched by engine (Pratt & Whitney PT6A series)

- [AD 2024-04-51](https://openairdocs.org/ad/2024-04-51): Turbine Section · Pratt & Whitney Canada PT6A-64, PT6A-66, PT6A-66A and 17 more. Effective Mar 28, 2024
- [AD 2022-08-13](https://openairdocs.org/ad/2022-08-13): Turbine Section · Pratt & Whitney Canada PT6A-34, PT6A-34B, PT6A-34AG and 2 more. Effective May 27, 2022
- [AD 2016-05-13](https://openairdocs.org/ad/2016-05-13): Corrosion and perforation of the two-ply Cu-Be bellows in Woodward FCUs. · Pratt & Whitney Canada PT6A-60AG, PT6A-65AG, PT6A-67AF and 1 more. Effective Apr 22, 2016
- [AD 2014-17-08 R1](https://openairdocs.org/ad/2014-17-08-R1): Compressor turbine (CT) blades · Pratt & Whitney Canada PT6A-114 and PT6A-114A. Effective Jun 5, 2015
- [AD 2014-11-05](https://openairdocs.org/ad/2014-11-05): Reinforcement liner to the power turbine (PT) containment   
  ring and, for certain PT containment rings, adding scallops · Pratt & Whitney Canada PT6A-11, PT6A-110, PT6A-112 and 18 more. Effective Aug 5, 2014
- [AD 2012-09-10](https://openairdocs.org/ad/2012-09-10): First stage sun gears · Pratt & Whitney Canada PT6A-110, PT6A-112, PT6A-114 and 12 more. Effective May 23, 2012
- [AD 2011-25-12](https://openairdocs.org/ad/2011-25-12): Sun gear · Pratt & Whitney Canada PT6A-15AG, PT6A-27, PT6A-28 and 4 more. Effective Dec 28, 2011
- [AD 2011-20-51](https://openairdocs.org/ad/2011-20-51): Gears · Pratt & Whitney Canada PT6A-15AG, PT6A-27, PT6A-28 and 4 more. Effective Nov 1, 2011
- [AD 2004-25-18](https://openairdocs.org/ad/2004-25-18): Propeller governor assemblies · Pratt & Whitney Canada PT6A-60A and PT6A-65B. Effective Jan 18, 2005
- [AD 2002-23-13](https://openairdocs.org/ad/2002-23-13): Turbine Exhaust Ducts · Pratt & Whitney Canada PT6A-11, PT6A-110, PT6A-112 and 20 more. Effective Dec 31, 2002
- [AD 2001-20-01](https://openairdocs.org/ad/2001-20-01): Compressor Bleed Valve Assembly · Pratt & Whitney Canada PT6A-114A and PT6A-25C. Effective Nov 5, 2001
- [AD 97-04-12](https://openairdocs.org/ad/97-04-12): Compressor Bleed-off Valve · Pratt & Whitney Canada PT6A-11, PT6A-110, PT6A-112 and 52 more. Effective Mar 14, 1997
- [AD 95-13-08](https://openairdocs.org/ad/95-13-08): Compressor Turbine Disk · Pratt & Whitney Canada PT6A-67D. Effective Jul 12, 1995
- [AD 93-23-06](https://openairdocs.org/ad/93-23-06): Airframe Chip Detector Flag System · Pratt & Whitney Canada PT6A-50. Effective Jan 26, 1994
- [AD 92-15-11](https://openairdocs.org/ad/92-15-11): Compressor Delivery Air Line (P3) Filter Assembly · Pratt & Whitney Canada PT6A-20, PT6A-20A, PT6A-21 and 7 more. Effective Aug 17, 1992
- [AD 90-12-05](https://openairdocs.org/ad/90-12-05): Engine Overhaul · Pratt & Whitney Canada PT6A-15AG, PT6A-27, PT6A-28 and 3 more. Effective May 30, 1990
- [AD 86-10-05](https://openairdocs.org/ad/86-10-05): First Stage Compressor Hub · Pratt & Whitney Canada PT6A-42. Effective Jun 5, 1986
- [AD 80-08-12](https://openairdocs.org/ad/80-08-12): Fuel Pump Drive Coupling Splines · Pratt & Whitney Canada PT6A-11, PT6A-112, PT6A-135 and 24 more. Effective Apr 18, 1980
- [AD 80-04-02](https://openairdocs.org/ad/80-04-02): Push-Pull Control Terminal · Pratt & Whitney Canada PT6A-20, PT6A-6A, PT6A-6B and 1 more. Effective Feb 8, 1980
- [AD 78-17-07](https://openairdocs.org/ad/78-17-07): Fuel Control Unit · Pratt & Whitney Canada PT6A-38, PT6A-41 and PT6A-45A. Effective Aug 31, 1978
- [AD 78-12-04](https://openairdocs.org/ad/78-12-04): No. 2 Bearing Pressure Oil Transfer Tube Assembly · Pratt & Whitney Canada PT6A-38, PT6A-41 and PT6A-45A. Effective Jun 19, 1978
- [AD 75-06-01](https://openairdocs.org/ad/75-06-01): Gearbox Deterioration · Pratt & Whitney Canada PT6A-20, PT6A-20A, PT6A-20B and 11 more. Effective Apr 1, 1977
- [AD 75-11-04](https://openairdocs.org/ad/75-11-04): Reduction Gearbox Engine Distress · Pratt & Whitney Canada PT6A-20, PT6A-20A, PT6A-20B and 8 more. Effective May 20, 1975
- [AD 70-16-01](https://openairdocs.org/ad/70-16-01): Turbo Propeller Governors · Pratt & Whitney Canada PT6A-11, PT6A-11AG, PT6A-15AG and 5 more. Effective Aug 4, 1970
- [AD 69-23-06](https://openairdocs.org/ad/69-23-06): Fuel Pumps · Pratt & Whitney Canada PT6A-20, PT6A-27, PT6A-28 and 4 more. Effective Nov 15, 1969
- [AD 68-05-03](https://openairdocs.org/ad/68-05-03): Reverse Mode · Pratt & Whitney Canada PT6A-20 and PT6A-6B. Effective Feb 28, 1968

### Historical (superseded or no longer in force)

- [AD 92-07-05](https://openairdocs.org/ad/92-07-05) (historical): Rudder Trim Tab · Raytheon 100 Model or Series (all), 65-90, 65-A90 and 16 more. Effective Apr 30, 1992
- [AD 87-22-01 R1](https://openairdocs.org/ad/87-22-01-R1) (historical): Nose Landing Gear Fork · Raytheon 100 Model or Series (all), 1900, 1900C and 50 more. Effective Sep 30, 1989
- [AD 2014-17-08](https://openairdocs.org/ad/2014-17-08) (historical): Compressor turbine (CT) blades · Pratt & Whitney Canada PT6A-114 and PT6A-114A. Effective Oct 8, 2014
- [AD 88-24-02](https://openairdocs.org/ad/88-24-02) (historical): Airframe Chip Detector Flag System · Pratt & Whitney Canada PT6A-50

## Information bulletins (advisory) (8 in force)

- [SAIB 2026-16](https://openairdocs.org/saib/2026-16): Elevator Control System. Issued Sep 10, 2026
- [SAIB CE-12-36](https://openairdocs.org/saib/CE-12-36): Flight Controls: Aileron. Issued Jun 19, 2012
- [SAIB ACE-96-17](https://openairdocs.org/saib/ACE-96-17): . Issued Dec 24, 1996
- [SAIB NE-15-21](https://openairdocs.org/saib/NE-15-21): Fuel Injector Nozzle. Issued Aug 19, 2015
- [SAIB NE-12-04](https://openairdocs.org/saib/NE-12-04): Turbine/ Turboprop Engine: Reduction Gearbox. Issued Nov 1, 2011
- [SAIB NE-10-47](https://openairdocs.org/saib/NE-10-47): Turbine Engine Compressor Section. Issued Aug 30, 2010
- [SAIB NE-06-34](https://openairdocs.org/saib/NE-06-34): . Issued Mar 21, 2006
- [SAIB CE-03-24](https://openairdocs.org/saib/CE-03-24): . Issued Feb 19, 2003

## NTSB investigations (3)

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

- [NTSB CEN17LA123](https://openairdocs.org/ntsb/CEN17LA123), Jan 24, 2017: Beech C 99 (N216CS), Durango, CO, substantial damage. Probable cause: The pilot's inability to maintain directional control during takeoff in crosswind conditions on a contaminated runway, which resulted in a runway excursion.
- [NTSB ANC96LA076](https://openairdocs.org/ntsb/ANC96LA076), May 21, 1996: Beech 99C (N216CS), Barrow, AK, substantial damage. Probable cause: an in-flight collision with a bird.
- [NTSB ANC92LA123](https://openairdocs.org/ntsb/ANC92LA123), Aug 9, 1992: Beech C99 (N216CS), Nuiqsut, AK, substantial damage. Probable cause: THE PILOT'S IMPROPER INFLIGHT PLANNING/PREPARATION, AND HIS FAILURE TO ATTAIN THE PROPER TOUCHDOWN POINT. CONTRIBUTING TO THE ACCIDENT WAS THE DOWNDRAFT.

## FAA accident and incident reports (3)

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [Incident 20170123001549I](https://openairdocs.org/incident/20170123001549I), Jan 23, 2017: Beech C-99 (N216CS), Durango, CO, Minor damage. On January 23, 2017 N216CS departed the left side of the runway during takeoff from runway 21 in Durango, CO. This was a result of the PIC failing to maintain…
- [Accident 19960521031429A](https://openairdocs.org/incident/19960521031429A), May 21, 1996: Beech C99 (N216CS), Barrow, AK, Substantial damage. Struck a duck cruising 800 AGL broke right side winshield and hit first officer. Treated for facial abrasions.
- [Accident 19920808029679A](https://openairdocs.org/incident/19920808029679A), Aug 8, 1992: Beech C99 (N216CS), Nuiqsut, AK, Substantial damage. Struck raised lip of runway landing short collapsing all three main gears. Blamed severe downdraft on short final.

## Service difficulty reports (12)

As reported by operators and repair stations.

- [SDR TIMA20240108003](https://openairdocs.org/sdr/TIMA20240108003), Jan 8, 2024: UNKNOWN. UNKNOWN. DEPARTED THIS MORNING AS 5042 FOR KOLF. NO RUNWAY NOTAM, SO I CONTACTED CLINT AND HE SAID 1 INCH DRY SNOW. UPON ARRIVING TO OLF FOUND 2 INCH DRY SNOW OVER ICE, 
- [SDR TIMA20230224002](https://openairdocs.org/sdr/TIMA20230224002), Feb 19, 2023: NONE. NONE. STARTED TRAINING FLIGHT, DID TRIM RUNAWAY, STEEP TURNS, CRUISE STALL, APPROACH TO LAND STALL. ON APPROACH TO LAND STALL RECOVERY, NOSE GEAR INDICATOR STAYED GRE
- [SDR TIMA20230125001](https://openairdocs.org/sdr/TIMA20230125001), Jan 25, 2023: WIRE. BROKEN. AFTER DEPARTING SLC WHILE PILOT SMELLED BURNING ELECTRICAL FUMES DURING THE CLIMB TO 10,000 MSL. HE TURNED OFF THE NON-ESSENTIAL ELECTRONIC AND RAN THE EMERGENC
- [SDR TIMA20220108009](https://openairdocs.org/sdr/TIMA20220108009), Aug 1, 2022: GENERATOR. INOPERATIVE. LEFT BOTH STARTERS ON AFTER START UP ( FLEW A B MODEL FOR 2 WEEKS AND GOT USED TO THE NON LOCKING TOGGLE SWITCH), COUPLE MINUTES AFTER TAKE OFF I NOTICED THE GE
- [SDR TIMA20140723012](https://openairdocs.org/sdr/TIMA20140723012), Jul 23, 2014: ESCAPE HATCH. UNSECURE. PILOT FAILED TO ENSURE THAT THE PILOT HATCH WAS FULLY LATCHED PRIOR TO TAKEOFF. DURING CRUISE THE PILOT HATCH CAME OPEN IMPACTING THE UPPER FUSELAGE & THEN DEPA
- [SDR TIMA20140205003](https://openairdocs.org/sdr/TIMA20140205003), Feb 5, 2014: RIB. CRACKED. INSPECTION REVEALED 3 CRACKS IN THE LT ELEVATOR OTBD LE RIB. THE CRACKED RIB WAS R & R WITH A NEW RIB.
- [SDR TIMA20120111001](https://openairdocs.org/sdr/TIMA20120111001), Jan 11, 2012: STRUCTURE. CRACKED. A CRACK WAS DISCOVERED IN THE HORIZONTAL STABILIZER UPPER CENTER TEE EXTRUSION AT THE AFT EDGE. EXTRUSION WAS REPAIRED BY INSTALLING A FILLER AND A DOUBLER IN A
- [SDR TIMA2010000013](https://openairdocs.org/sdr/TIMA2010000013), Jun 13, 2010: SUPPORT. CRACKED. LEFT TORQUE TUBE ASSY SUPPORT CRACKED.
- [SDR TIMA20080005](https://openairdocs.org/sdr/TIMA20080005), Oct 2, 2008: FITTING. MISSING. LANDING GEAR FAILED TO EXTEND WHEN SELECTED. GEAR WAS PUMPED DOWN AND AIRCRAFT LANDED WITHOUT INCIDENT. INVESTIGATION REVEALED THAT THE C-CLIP ON THE HYDRAULIC 
- [SDR TIM2002F00011](https://openairdocs.org/sdr/TIM2002F00011), Jan 29, 2002: CIRCUIT BOARD. BURNED. PN 993641581, A PRINTED CIRCUIT BOARD ASSEMBLY INSTALLED IN A TIME DELAY ASSEMBLY. THE ASSEMBLY IS PART OF THE HYDRAULIC SYSTEM AND IS IN THE LOW LIQUID LEVEL S
- [SDR TIMAP53](https://openairdocs.org/sdr/TIMAP53), Sep 6, 2001: POWERPACK. INOPERATIVE. LANDING GEAR POWER PACK FAILED. INSPECTION OF THE POWER PACK REVELED MOTOR SHORTED, CAUSED BY INTERNAL LEAK IN THE POWER PACK. CREW LOWERED GEAR MANUALLY.
- [SDR 20000331SH014](https://openairdocs.org/sdr/20000331SH014), Mar 15, 2000: ACTUATOR. CRACKED. HYDRAULIC FLUID FOUND IN WHEELWELL DURING POST-FLIGHT INSPECTION. LANDING GEAR RETRACTION PERFORMED, FOUND 2 INCH CRACK AROUND TOP OF ACTUATOR. ACTUATOR OVERHAU

## Related

- Other Beech C-99 aircraft: https://openairdocs.org/model/beech-c-99/aircraft.md
- STCs for the Beech C-99: https://openairdocs.org/model/beech-c-99/stcs.md
- The Pratt & Whitney PT6A series engine: https://openairdocs.org/engine/pratt-whitney-pt6a-series.md

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