Cessna 501 (Citation-I/SP design) airworthiness directives

• AD 2025-07-01

  Effective 2025-05-15

  Thommen Aircraft Equipment AG Digital Air Data Computers

  This AD was prompted by occurrences of AC32 Digital ADCs that stopped functioning due to the power module failing at temperatures below -20 degrees Celsius.

  (1) This AD applies to THOMMEN AIRCRAFT EQUIPMENT AG (THOMMEN) AC32 Digital Air Data Computers (ADCs) having an affected part as defined in paragraph (f)(1) of this AD. (2) This appliance is installed on, but not limited to, the following aircraft models specified in table 1 to paragraph (c)(2) of this AD, certificated...

• AD 2015-17-12

  Effective 2015-09-29 · recurring

  Cessna Aircraft Company Airplanes

  This AD was prompted by reports of smoke and/or fire in the tailcone caused by sparking due to excessive wear of the brushes in the A/C motor.

  This AD applies to the Cessna Aircraft Company airplanes, certificated in any category, identified in table 1 to paragraph (c) of this AD, that have an air conditioning (A/C) system installed via a Cessna Aircraft Company supplemental type certificate (STC) identified in paragraph (c)(1), (c)(2), (c)(3), or (c)(4) of t...

• AD 2013-09-11

  Effective 2013-07-05 · recurring

  Cessna Aircraft Company Airplanes

  This AD was prompted by multiple reports of smoke and/or fire in the tailcone caused by sparking due to excessive wear of the brushes in the air conditioning (A/C) motor.

  This AD applies to the following Cessna Aircraft Company airplanes, certificated in any category. (1) Model 500 and 501 airplanes, serial numbers (S/N) 0001 through 0689 inclusive. (2) Model 550 and 551 airplanes, S/Ns 0002 through 0733 inclusive, and 0801 through 1136 inclusive. (3) Model S550 airplanes, S/Ns 0001 thr...

• AD 2006-16-18

  Effective 2008-07-18

  Sandel Avionics Incorporated Model ST3400 Terrain Awareness Warning System/Radio Magnetic Indicator (TAWS/RMI) Units Approved Under Technical Standard Order(s) C113, C151a, or C151b; Installed on Various Small and Transport Category Airplanes

  We are issuing this AD to prevent a bearing error, which could lead to an airplane departing from its scheduled flight path, which could result in a reduction in separation from, and a possible collision with, other aircraft or terrain.

  This AD applies to Sandel Avionics Incorporated (Sandel) Model ST3400 terrain awareness warning system/radio magnetic indicator (TAWS/RMI) units approved under Technical Standard Order(s) C113, C151a, or C151b; as identified in Sandel ST3400 Service Bulletin SB3400-01, Revision B, dated September 15, 2004; as installed...

• AD 2007-11-17

  Effective 2007-07-06

  Cessna Model 500, 501, 550, 551, S550, 560, 560XL, and 750 Airplanes

  This AD applies to Cessna Model 500, 501, 550, 551, S550, 560, 560XL, and 750 airplanes, certificated in any category; as identified in the service bulletins specified in Table 1 of this AD. Table 1.--Cessna Service Bulletins Cessna Service Bulletin Revision Date Cessna model SB500-26-02, including Service 1: July 7, 2...

• AD 2006-06-03

  Effective 2006-04-20

  Cessna Model 500, 501, 550, S550, 551, and 560 Airplanes

  This AD was prompted by a report of a chafed electrical wiring harness, which was arcing inside the fuel tank.

  This AD applies to the Cessna airplanes listed in Table 1 of this AD, certificated in any category. Table 1.--Applicability Airplane model(s) Serial Nos. 500 and 501: 0001 through 0689 inclusive. S550: 0001 through 0160 inclusive. 550 and 551: 0002 through 0733 inclusive. 550: 0801 through 1075 inclusive. 560: 0001 thr...

• AD 2004-09-05

  Effective 2004-06-02 · recurring

  Cessna Model 500, 501, 550, and 551 Airplanes

  To prevent jamming of the wheel/tire assembly, which could result in a loss of directional control or braking performance upon landing.

  Model 500 and 501 airplanes, serial numbers 0001 through 0689 inclusive, and Model 550 and 551 airplanes, serial numbers 0002 through 0733 inclusive; certificated in any category; equipped with BFGoodrich brake assembly part number (P/N) 2-1528-6 or 2-1530-4.

• AD 2004-08-15

  Effective 2004-06-07

  Goodrich Avionics Systems, Inc. TAWS8000 Terrain Awareness Warning System

  This AD affects all airplane models and serial numbers, certificated in any category, that incorporate a Goodrich TAWS8000 terrain awareness warning system (TAWS), part number (P/N) 805- 18000-001, with "Mod None", "Mod A", or "Mod B" hardware installed. This list of airplanes that have the TAWS8000 TWAS installed incl...

• AD 2004-04-09

  Effective 2004-04-05 · superseded or removed

  Pratt & Whitney Canada JT15D-1, -1A, and -1B Turbofan Engines

  This AD applies to Pratt & Whitney Canada (PWC) JT15D-1, - 1A, and -1B turbofan engines with certain impellers, part number (P/ N) 3020365, installed. These engines are installed on, but not limited to, Cessna Aircraft Company Models 500 and 501 airplanes.

• AD 2001-23-17

  Effective 2001-12-28

  GARMIN International GNS 430 Units

  This AD applies to the GNS 430 units that are specified in paragraph (a)(1) of this AD and are installed on aircraft. These GNS 430 units are installed in, but not limited to, aircraft that are certificated in any category and presented in paragraph (a)(2) of this AD: (1) GNS 430 Units, part number 011-00280-00: serial...

• AD 98-04-38

  Effective 1998-03-25

  Cessna Model 500, 501, 550, 551, and 560 Series Airplanes

  Model 500, 501, 550, 551, and 560 series airplanes equipped with pneumatic deicing boots, certificated in any category.

Cessna 501 (Citation-I/SP design): price, specs and every tail

AD data from the Federal Register and the FAA. Data: Radar, FAA aircraft registry file of 2026-10-09.