# N14CS: 1974 Grumman American Avn. AA-1B

- Status: Valid registration
- Airframe: [Grumman American Avn. AA-1B](https://openairdocs.org/model/grumman-american-avn-aa-1b) (registry code 3960103, 2 seats)
- Engine: [Lycoming 0-235 series](https://openairdocs.org/engine/lycoming-0-235-series) (registry code 41505)
- Data sheets: [TCDS A11EA](https://openairdocs.org/tcds/A11EA) (True Flight Holdings LLC), [TCDS E-223](https://openairdocs.org/tcds/E-223) (Lycoming Engines) (OpenAirDocs)
- Serial number: AA1B-0355
- Year built: 1974
- Type: Fixed wing single engine
- Engine type: Reciprocating
- Airworthiness: Standard, normal, utility
- Airworthiness date: February 19, 1974
- Certificate issued: January 30, 2024
- Expires: January 31, 2031
- Mode S code: A0A09A
- Registered owner: [Sorknes Chadly S](https://openairdocs.org/faa-owner/SORKNES%20CHADLY%20S)
- Location: [North Palm Beach, FL](https://openairdocs.org/faa-place/FL/North%20Palm%20Beach)
- Owner type: Individual
- Owner's area on the map: 26.8409° N, 80.0521° W: Placed by OpenAirDocs at the center of ZIP code 33408, within about a mile (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=14CS
- Page: https://openairdocs.org/aircraft/N14CS

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 Lycoming 0-235 model are included.

## ADs that may apply (OpenAirDocs): 36 in force

### Matched by airframe (Grumman American Avn. AA-1B)

- [AD 2022-03-15](https://openairdocs.org/ad/2022-03-15): Fuel Quantity Indicator · Garmin G3X Touch Electronic Flight Instrument System (STC SA01899WI). Effective Mar 21, 2022
- [AD 2021-14-12](https://openairdocs.org/ad/2021-14-12): Horizontal Stabilizer, Plate/Skin, Elevator, Plates/Skin Structure · True Flight Holdings AA-1, AA-1A, AA-1B and 2 more. Effective Jul 27, 2021
- [AD 2006-03-08](https://openairdocs.org/ad/2006-03-08): Vacuum pumps · Aero Advantage 14-19, 14-19-2, 14-19-3 and 299 more. Effective Mar 10, 2006
- [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 96-09-06](https://openairdocs.org/ad/96-09-06): Air Filter Assemblies · Maule Aerospace Technology 7ACA, 7ECA, 7FC and 180 more. Effective Jun 7, 1996
- [AD 85-21-02](https://openairdocs.org/ad/85-21-02): Seat Belt Attachment Bracket · True Flight Holdings AA-1, AA-1A, AA-1B and 1 more. Effective Oct 28, 1985
- [AD 81-15-03](https://openairdocs.org/ad/81-15-03): Engine Inlet Air Filters · Replace existing engine induction air filter (Brackett Aero Filters STC SA693CE or SA71GL). Effective Jul 20, 1981
- [AD 79-16-02](https://openairdocs.org/ad/79-16-02): Safety Belt Assemblies · Indiana Mills & Manufacturing Safety Belts, AA-1B, AA-1C and 3 more. Effective Aug 2, 1979
- [AD 78-13-04](https://openairdocs.org/ad/78-13-04): Fuel Measurement Gauge · True Flight Holdings AA-1, AA-1A and AA-1B. Effective Jun 30, 1978
- [AD 76-17-03](https://openairdocs.org/ad/76-17-03): Delaminations in Bonded Skin · True Flight Holdings AA-1, AA-1A, AA-1B and 3 more. Effective Aug 30, 1976
- [AD 75-09-07](https://openairdocs.org/ad/75-09-07): Mixture Control Wires · True Flight Holdings AA-1, AA-1A and AA-1B. Effective Apr 25, 1975
- [AD 72-06-02](https://openairdocs.org/ad/72-06-02): Rudder Aileron and Elevator Control Cables · True Flight Holdings AA-1, AA-1A, AA-1B and 1 more. Effective Aug 29, 1974
- [AD 72-07-10](https://openairdocs.org/ad/72-07-10): Wear on Elevator Bungee Housing · True Flight Holdings AA-1, AA-1A and AA-1B. Effective Jul 10, 1974
- [AD 73-13-07](https://openairdocs.org/ad/73-13-07): Placard Installation · True Flight Holdings AA-1, AA-1A and AA-1B. Effective Jun 25, 1973
- [AD 75-07-04](https://openairdocs.org/ad/75-07-04): Rudder Control Bar Assemblies · True Flight Holdings AA-1, AA-1A, AA-1B and 2 more

### Matched by engine (Lycoming 0-235 series)

- [AD 2026-17-10](https://openairdocs.org/ad/2026-17-10): Reciprocating Engine Cylinder Section · Lycoming Engines O-235, O-235-A, O-235-AP and 159 more. Effective Sep 14, 2026
- [AD 2026-04-11](https://openairdocs.org/ad/2026-04-11): Engine (Reciprocating) · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 605 more. Effective Apr 8, 2026
- [AD 2022-16-03](https://openairdocs.org/ad/2022-16-03): Engine (RECIPROCATING) · Continental Aerospace Technologies GTSIO-520-C, GTSIO-520-D, GTSIO-520-F and 236 more. Effective Aug 15, 2022
- [AD 2017-16-11](https://openairdocs.org/ad/2017-16-11): Reciprocating Engine Power Section · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-360-B1G6 and 93 more. Effective Aug 15, 2017
- [AD 2012-03-07](https://openairdocs.org/ad/2012-03-07): Carburetor · Lycoming Engines GO-435, GO-435-C2 (O-435-17), GO-435-C2A and 389 more. Effective Mar 27, 2012
- [AD 2004-10-14](https://openairdocs.org/ad/2004-10-14): Crankshaft gear · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 642 more. Effective Jun 25, 2004
- [AD 98-17-11](https://openairdocs.org/ad/98-17-11): Crankshafts · Continental Motors A-65-3, A-65-8, A75-8 and 90 more. Effective Oct 19, 1998
- [AD 98-01-06](https://openairdocs.org/ad/98-01-06): Carburetors · Continental Motors A-65-1, A-65-12, A-65-12F and 184 more. Effective Feb 13, 1998
- [AD 96-09-10](https://openairdocs.org/ad/96-09-10): Oil pump · Lycoming Engines AEIO-320-E1A, AEIO-320-E1B, AEIO-320-E2A and 334 more. Effective Jul 15, 1996
- [AD 95-26-02](https://openairdocs.org/ad/95-26-02): Aviation Gasoline · Lycoming Engines IO-320-B1A, IO-320-B1B, IO-320-B1C and 182 more. Effective Jan 24, 1996
- [AD 95-03-10](https://openairdocs.org/ad/95-03-10): Push Rods · Lycoming Engines O-235, O-235-A, O-235-AP and 38 more. Effective Jan 24, 1996
- [AD 93-19-04](https://openairdocs.org/ad/93-19-04): Carburetors · Continental Motors A-65-1, A-65-12, A-65-12F and 184 more. Effective Oct 18, 1993
- [AD 90-04-06 R1](https://openairdocs.org/ad/90-04-06-R1): Propeller Governor External Oil Line · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 427 more. Effective May 28, 1991
- [AD 88-02-04](https://openairdocs.org/ad/88-02-04): Carburetors · Lycoming Engines O-235-C1C, O-235-H2C, O-235-L2A and 4 more. Effective Feb 1, 1988
- [AD 81-16-05](https://openairdocs.org/ad/81-16-05): Magnetos · Lycoming Engines AEIO-320-E1B, AEIO-320-E2B, AEIO-360-B1G6 and 234 more. Effective Aug 6, 1981
- [AD 80-25-02 R2](https://openairdocs.org/ad/80-25-02-R2): Pushrods · Lycoming Engines O-235, O-235-A, O-235-AP and 30 more. Effective Jan 13, 1981
- [AD 80-06-05](https://openairdocs.org/ad/80-06-05): Magnetos · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 254 more. Effective Mar 28, 1980
- [AD 78-25-01](https://openairdocs.org/ad/78-25-01): Condensers · Lycoming Engines O-235-L2C. Effective Dec 8, 1978
- [AD 75-08-09](https://openairdocs.org/ad/75-08-09): Oil Pump Drive Shaft · Lycoming Engines AEIO-360-A1B, AEIO-360-A1B6, AEIO-360-A1C and 365 more. Effective Aug 18, 1977
- [AD 69-24-03](https://openairdocs.org/ad/69-24-03): Carburetors · Continental Motors A-65-1, A-65-12, A-65-12F and 321 more. Effective Nov 29, 1969
- [AD 66-06-03](https://openairdocs.org/ad/66-06-03): Connecting Rod Assemblies · Lycoming Engines GO-435-C2 (O-435-17), GO-435-C2A, GO-435-C2A2 and 317 more. Effective Jan 16, 1969

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

- [AD 2024-21-02](https://openairdocs.org/ad/2024-21-02) (historical): Engine (Reciprocating) · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 548 more. Effective Dec 5, 2024
- [AD 81-18-04 R2](https://openairdocs.org/ad/81-18-04-R2) (historical): Engine Oil Pump Driven Impeller and Shaft · Textron Lycoming, AVCO AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 376 more. Effective Jun 7, 1982

## Information bulletins (advisory) (7 in force)

- [SAIB AIR-22-15](https://openairdocs.org/saib/AIR-22-15): Bonded Structure Inspection. Issued Jun 15, 2022
- [SAIB SW-18-31](https://openairdocs.org/saib/SW-18-31): NAVIGATION, ATTITUDE, AND DIRECTION DATA SYSTEM. Issued Nov 21, 2018
- [SAIB NE-19-08](https://openairdocs.org/saib/NE-19-08): Reciprocating Engine Cylinder Section - Lycoming Engines Parallel Valve Cylinders. Issued May 2, 2019
- [SAIB NE-14-13](https://openairdocs.org/saib/NE-14-13): Reciprocating Engine - Cylinder Mounting Studs. Issued Mar 24, 2014
- [SAIB NE-06-32R1](https://openairdocs.org/saib/NE-06-32R1): Reciprocating Engine - Crankshaft. Issued Sep 10, 2008
- [SAIB NE-05-89](https://openairdocs.org/saib/NE-05-89): . Issued Sep 30, 2005
- [SAIB NE-01-22](https://openairdocs.org/saib/NE-01-22): . Issued May 11, 2001

## NTSB investigations

None matched to N14CS.

## NTSB investigations on N14CS not matched to an aircraft (2)

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 IAD05LA135](https://openairdocs.org/ntsb/IAD05LA135), Sep 13, 2005: Sikorsky S-76B (N14CS), Linden, NJ, no damage. Probable cause: The lineman's failure to maintain adequate clearance from the main rotor system. A factor was his lack of familiarity with the accident helicopter make and model.
- [NTSB LAX76FWA20](https://openairdocs.org/ntsb/LAX76FWA20), Feb 9, 1976: Grumman G-21 (N14CS), Avalon, CA, substantial damage

## FAA accident and incident reports

None matched to N14CS.

## Reports on N14CS not matched to an aircraft (2)

They name N14CS, but no registry record covers the event date, or the aircraft registered then was built later.

- [Accident 20050913030769A](https://openairdocs.org/incident/20050913030769A), Sep 13, 2005: Skrsky S76B (N14CS), Linden, NJ. (-23) On this date at approximately 12:10 hours, this aircraft taxied to the fueling area, to be refueled. The aircraft came to a stop and before the crew…
- [Accident 19760209002239A](https://openairdocs.org/incident/19760209002239A), Feb 9, 1976: Gruman G21A (N14CS), Avalon, CA, Substantial damage. Un lnd at spb due heavy swells. Lnd in cove. After t/d tail hit by swell,dmgd l stab & elev.

## Service difficulty reports

None filed for this aircraft. Reports filed since February 2, 2016, when the mark's previous registration was cancelled.

## Earlier aircraft with N14CS

The FAA can reassign an N-number once a registration is cancelled. These aircraft carried N14CS before.

- [Cancelled 2016-02-02](https://openairdocs.org/deregistered/N14CS-2016-02-02): Diamond Aircraft Ind DA42MNG, S/N 42.MN022, built 2012. Exported to Canada. Owner: [Arctic Science & Response Group LLC](https://openairdocs.org/faa-owner/ARCTIC%20SCIENCE%20%26%20RESPONSE%20GROUP%20LLC), [Anchorage, AK](https://openairdocs.org/faa-place/AK/Anchorage)
- [Cancelled (date not recorded)](https://openairdocs.org/deregistered/N14CS-undated): Grumman G-21A, S/N 1048

## Related

- Other Grumman American Avn. AA-1B aircraft: https://openairdocs.org/model/grumman-american-avn-aa-1b/aircraft.md
- STCs for the Grumman American Avn. AA-1B: https://openairdocs.org/model/grumman-american-avn-aa-1b/stcs.md
- The Lycoming 0-235 series engine: https://openairdocs.org/engine/lycoming-0-235-series.md

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